Biology 2201
Course Description
This course begins the study of introductory biology. Topics include the cell and cellular transport, diversity of life, homeostasis of human biology systems and population biology.
Authorized Learning Resource
Homework Central
Fri Apr 26: Please review our introduction to Unit 3(C) - The Circulatory System. Be familiar with the functions of a circulatory system. Note that thin organisms do not require a circulatory system as all cells are close to the environment (diffusion). Thick organisms require a system of transport to all cells. Also review the 3 Types of Blood Vessels noting their physical differences on a diagram(a) arteries....to be continued.
Thurs Apr 25: Students wrote the Endocrine System Test.
Wed Apr 24: This class was used as a review period in preparation for the upcoming test.
Endocrine System Test - Thurs
Mon Apr 22: This period was time for students to complete work related to the Endocrine System: the Gland / Hormone Summary Table as well as Assign 4 - Endocrine Questions.
Endocrine System Test - Thurs
Fri Apr 19: Please review our continued notes and discussion of Gland / Hormone Combinations. Situation 2 - before a meal when blood glucose is too low. Be familiar with the 3 G words (glucose, glycogen & glucagon). We also discussed the symptoms of untreated diabetes. Also review (6) Pineal Gland and its hormone (a) melatonin. This hormone causes sleep and follows a circadian rhythm (low in AM, high in PM). We discussed applications such as cell phone use before bed and jetlag). (7) Gonads Testes / Ovaries and their hormones (a) androgens and (b) estrogens which are responsible for the secondary sex characteristics.
Assign 4 - Endocrine Questions (Due Mon)
Gland / Hormone Summary Table (Due Mon)
Endocrine System Test - Thurs
Wed Apr 17: Please review our continued notes and discussion of Gland /
Hormone Combinations. (5) Adrenal Cortex and its hormones (a)
glucocorticoids (cortisol). Note that cortisol is a long-term stress
hormone and provides energy by increasing glucose in the blood and reducing
inflammation, (b) mineral corticoids (aldosterone) and its role in increasing
sodium in the blood, blood pressure and osmoregulation. (c) androgen and
estrogens in small amounts. Also review our introduction to the (5)
Pancreas and its hormones released from Islet of Langerhans Cells: alpha cells
- secreting glucagon which raises blood sugar and beta cells secreting insulin
which lowers blood sugar. These are another set of antagonistic
hormones. Be able to discuss maintaining homeostasis of blood sugar in 2
situations: Situation 1 - after a meal when blood glucose is too high...to be
continued.
Assign 2 - Endocrine Disorder Research (Due Wed)
Update The Gland / Hormone Summary Table
Tues Apr 16: Career field trip. Students in class were given time to work on the Endocrine Research Assignment and to update their gland / hormone summary tables.
Assign 2 - Endocrine Disorder Research (Due Wed)
Update The Gland / Hormone Summary Table
Thurs Apr 11: Please review our continued notes and discussion of Gland / Hormone Combinations: (4) Adrenal Gland (medulla) and its hormones (a) adrenaline / epinephrine and (b) noradrenaline / norepinephrine. Note that these hormones are complementary and are involved in the short-term stress response (fight or flight). These hormones are also neurotransmitters and this shows the connection between the nervous and endocrine systems. (5) Adrenal Cortex and its hormones (a) glucocorticoids (cortisol). Note that cortisol is a long-term stress hormone and provides energy by increasing glucose in the blood and reducing inflammation...to be continued.
Assign 2 - Endocrine Disorder Research (Due Wed)
Update The Gland / Hormone Summary Table
Wed Apr 10: Please review our notes and discussion exploring gland / hormone combinations: (3) Parathyroid Gland (a) parathyroid hormone (PTH). Be familiar with how parathyroid hormone and calcitonin work as antagonistic hormones to control blood calcium level (situation 1: blood calcium too high, situation 2: blood calcium too low).
Update The Gland / Hormone Summary Table
Mon Apr 8: Please review our continued notes and discussion exploring Gland / Hormone Combinations. Be able to label a diagram locating these glands in the body. (2) Thyroid Gland (a) thyroxine (T4 - which control metabolic rate) - be familiar with the negative feedback loop for thyroxine homeostasis. (b) calcitonin (which lower blood calcium)..to be continued.
Update the Gland / Hormone Summary Table
Wed Mar 27: Please review our continued notes and discussion of Gland / Hormone Combinations. Be able to label a diagram identifying the location of glands in the body. For each hormone be familiar with the target cell and its effect. (1) Anterior Pituitary Gland and its hormone (a) human growth hormone (hGH / somatotropin). (2) Thyroid Gland (a) thyroxine...to be continued. Students were provided with a Gland / Hormone Summary Table.
Mon Mar 25: Please review our notes and discussion of Hormone Types: (1) steroid hormones (fat soluble) and (2) protein hormones (be familiar with the second messenger hypothesis). Also review our introduction to Glands and the hormones they secrete: (1) Anterior Pituitary - (a) human growth hormone (HGH)...to be continued.
Assign 1 - Endocrine Question (Due Wed)
Fri Mar 22: Students wrote Unit 3 (A) - Nervous System Test.
Wed Mar 20: This period was used as a review class in preparation for the upcoming Unit 3 (A) - Nervous System Test.
Unit 3 (A) - Nervous System Test (Fri March 22)
Tues Mar 19: Please review our introduction to Unit 3 (B) - The Endocrine System. Note a definition of the endocrine system, hormones and endocrine glands. Also review the concept of target cells and target organs. Note the differences and similarities between nervous and endocrine function and the physical connection between the 2 systems (the hypothalamus-pituitary connection).
Unit 3 (A) - Nervous System Test (Fri March 22)
Mon Mar 18: Please review our examples of excitatory and inhibitory neurotransmitters. The remainder of the class was used for review in preparation for the upcoming test.
Unit 3 (A) - Nervous System Test (Fri March 22)
Thurs Mar 14: Please review our introduction to The
Synapse. Note the definition of a synapse, pre-synaptic neurons,
post-synaptic neurons and the steps for an impulse to cross the synapse (refer
to the diagram). Note what happens to neurotransmitters once their job in the synapse is complete. Be familiar with 2 types of neurotransmitters and their
impact on the post-synaptic neuron...to be continued.
Unit 3 (A) - Nervous System Test (Fri March 22)
Wed Mar 13: Please review our continued notes and discussion exploring Impulse Transmission on the Neuron: (3) repolarized (refractory period). Note how the strength of a response is determined.
Unit 3 (A) - Nervous System Test (Fri March 22)
Mon Mar 11: Please review our introduction to Impulse Transmission on the Neuron. Be familiar with the 3 stages of impulse transmission. Know the key events at each stage and be able to recognize these on a potential energy graph: (1) polarized (resting potential, (2) depolarized (action potential dependent on the all or none response and threshold)....to be continued.
Thurs Mar 7: Students completed Lab 2 - Reflexes.
Lab 2 - Reflexes (Due Fri)
Mon Mar 4: Please review our continued notes and discussion of the Pathway for a Reflex / Reflex Arc: (4) interneuron, (5) spinal cord, (6) motor neuron, (7) effector and (8) response. Note that reflexes occur without thinking and do not have direct brain involvement. They have survival value.
Wed Feb 28: Please review our continued notes and discussion exploring the Structure of a Neuron: (d) myelin sheath, (e) Schwann Cells, (f) nodes of Ranvier and (g) axon terminal. Also review our introduction to the Pathway for a Reflex / Reflex Arc: (1) stimulus, (2) sensory receptor, (3) sensory neuron......to be continued.Be able to label a diagram. Be familiar with the definition of a reflex arc.
Tues Feb 27: Please review our notes and discussion exploring the Structure of a Neuron (a single nerve cell). Be familiar with the parts of the neuron, their functions and be able to label a diagram: (a) cell body (soma), (b) dendrites, (c) axon, (d) myelin sheath...to be continued.
Assign 2 - Nervous System Disorder Research (Due Wed)
Fri Feb 23: Please review our continued notes and discussion of the (2) Peripheral Nervous System (PNS). Note the functions of both its divisions (a) autonomic nervous system (both the sympathetic & parasympathetic branches) and the (b) somatic nervous system. We completed a summary flow chart for the nervous system. We completed the class by having students select topics for Assign 2 - Nervous System Disorder Research.
Assign 2 - Nervous System Disorder Research (Due Wed)
Thurs Feb 22: Students completed Lab 1 - The Sheep Brain Dissection.
Lab 1 - Sheep Brain Dissection (Due Thurs)
Tues Feb 20: Please review our continued notes and discussion exploring the following brain parts, their functions and location on a diagram: HINDBRAIN (vi) medulla oblongata and (vii) pons. Also review our discussion of the (2) Peripheral Nervous System (PNS). Be familiar with the 2 divisions of the PNS: (a) autonomic nervous system (both the sympathetic and parasympathetic branches)...to be continued. We also viewed a video to prep for Lab 1 - the Sheep Brain Dissection.
Assign 1 - Central Nervous System / The Brain (Due Thurs)
Review Sheep Brain Dissection Videos Before Next Class
Mon Feb 19: Please review our notes and discussion exploring the Organization of the Human Nervous System. Be familiar with the following brain parts, their functions and location on a diagram: FOREBRAIN (i) cerebrum (including cerebral cortex, corpus callosum & the 4 lobes), (ii) thalamus, (iii) hypothalamus. MIDBRAIN (iv) midbain. HINDBRAIN (v) cerebellum,...to be continued.
Assign 1 - Central Nervous System / The Brain (Begin Your Work)
Fri Feb 16: Please review our notes and discussion exploring the Organization of the Human Nervous System. Note the difference between grey matter and white matter. (1) Central Nervous System: (a) spinal cord and (b) brain. Note three ways that the brain is protected (skull, meninges & cerebrospinal fluid). Be familiar with the following brain parts, their functions and location on a diagram: FOREBRAIN (i) cerebrum (including cerebral cortex...to be continued.
Tues Feb 13: Please review our introduction to Unit 3 - Maintaining Homeostasis (Part A - The Nervous System). Be familiar with a definition of homeostasis and the importance of maintaining this internal steady state. Note how homeostasis is achieved through a negative feedback loop which is associated with a healthy body. We used temperature regulation as a example. Note the opposite positive feedback loop which is associated with disease or change. We used high blood pressure and labor as examples...to be continued.
Fri Feb 9: Students completed the Unit 2 Test - Processes That Sustain Life (The Cell).
Wed Feb 7: This class was used as a review period in preparation for our upcoming test.
Unit 2 Test - Fri Feb 9th
A Review Sheet Has Been Posted In Your Google Classroom
Mon Feb 5: Please review our continued notes and discussion of Biological Molecules: (3) Macromolecules (b) lipids (fats) (phospholipids, steroids and waxes) and (c) amino acids and their functions.
Unit 2 Test - Fri Feb 9th
A Review Sheet Has Been Posted In Your Google Classroom
Wed Jan 31: Please review our continued notes and discussion of Biological Molecules: (3) Macromolecules (a) carbohydrates and their functions (simple carbs & complex carbs)...to be continued. Students were given the opportunity to review their January Cumulative Assessments.
Unit 2 Test - Fri Feb 9th
A Review Sheet Has Been Posted In Your Google Classroom
Tues Jan 30: All assignments were returned to students in preparation for the unit test. Please review our continued notes and discussion of Energy in Cells: (2) Anabolism - photosynthesis. Note the overall equation and its two steps (Light Dependent Reaction & the Calvin Cycle). Also review our introduction to Biological Elements and Molecules in Cells: (1) Elements. Be familiar with the 4 major elements in ALL cells - oxygen, carbon, hydrogen & nitrogen. (2) Water. Be familiar with the function of water in cells...to be continued.
Unit 2 Test - Fri Feb 9th
A Review Sheet Has Been Posted In Your Google Classroom
Mon Jan 29: Please review our continued notes and discussion of Energy in Cells. Note the 2 types of metabolism: (1) Catabolism. Be familiar with the 2 catabolic reactions that compose the ATP-ADP Cycle: (a) ATP catabolism and (b) glucose catabolism. Glucose metabolism occurs in 4 stages...to be continued.
Unit 2 Test - Fri Feb 9th
A Review Sheet Has Been Posted In Your Google Classroom
Thurs Jan 25: Please review our continued notes and discussion of Limits to Cell Size: (4) surface area to volume ratio. Note that small cells have small volumes and small surface areas BUT large surface area to volume ratios. This is important when feeding / absorbing nutrients. Students completed Assign 2 - Cell Size. Also review our introduction to Energy in Cells. Be familiar with the 2 types of energy reactions in cells: (1) Catabolism. This is a bond breaking and energy releasing reaction that occurs in the mitochondria of cells on the cristae (inner folded membrane). There are 2 types of catabolic reactions: (a) ATP catabolism...to be continued.
Assign 2 - Cell Size (Due Thurs)
Wed Jan 24: Students worked on Assign 1 - Transport which is a Google Form on Google Classroom. Please review our notes and discussion exploring Limits to Biological Size. It is an advantage for a cell to remain small. Note the following reasons; (1) limits to diffusion distance, (2) control by the nucleus, (3) collision of reactants...to be continued.
Assign 1 - Transport (Due Wed)
Mon Jan 22: Please review our continued notes and discussion of (2) Active Transport - (b) exocytosis. We reviewed ALL forms of transport using a flow diagram.
Assign 1 - Transport (Due Wed)
Fri Jan 19: Please review our continued notes and discussion of (1) Passive Transport (c) facilitated diffusion (carrier proteins for large molecules & channel proteins for ion). Also review our introduction to (2) Active Transport. Note the use of ATP to work against a concentration gradient. (a) endocytosis (pinocytosis & phagocytosis)...to be continued. Note that these are considered membrane-assisted transport because of the use of the cell membrane and vesicles...to be continued.
Lab 2 - Osmosis (Due Mon)
Thurs Jan 18: Students continue to collect data for Lab #2 - Osmosis. Students completed and submitted this lab report.
Tues Jan 16: Students completed the Cumulative Assessment on Unit 2 - Processes That Sustain Life (The Cell).
Mon Jan 15: Students completed the Cumulative Assessment on Unit 1 - Ecosystem Interactions and Population Dynamics.
Thurs Jan 11: Students collected data for Lab #2 - Osmosis. We discussed a sample question for Part 1 of the Cumulative Assessments.
Wed Jan 10: Please review our continued notes and discussion of (1) Passive Transport (b) Osmosis. Be familiar with the terms hypotonic, hypertonic and isotonic and the conditions in animal and plant cells: lyse, turgid, crenate and plasmolyzed. We worked through several sample questions involving osmosis. We also completed a pre-lab for Lab #2 - Osmosis.
Tues Jan 9: Please review our introduction to the topic of Cell Transport; moving materials into or out of the cell membrane. Note the types of transport: (1) active transport (a) simple diffusion - movement of particles from high concentration to low concentration down a concentration hill, why this diffusion occurs (Brownian Motion), the concept of a dynamic equilibrium and the situations where diffusion applies in cells (small molecules, uncharged, over short distances, with large concentration gradients). Also review (b) osmosis. Be familiar with the terms hypotonic, hypertonic and isotonic. Also apply osmosis to situations in animal and plant cells using the terms: lyse, turgid....to be continued.
A Schedule Has Been Posted In Your Google Classroom For
January Cumulative Assessments
Thurs Jan 4: Students completed Unit 2 Quiz 3.
A Schedule Has Been Posted In Your Google Classroom For
January Cumulative Assessments
Tues Jan 2: Please review our introduction to the topic of Cell Transport; moving materials into or out of the cell membrane. Note the types of transport: (1) active transport (a) simple diffusion - movement of particles from high concentration to low concentration down a concentration hill, why diffusion occurs (Brownian Motion), the concept of a dynamic equilibrium...to be continued.
Unit 2 Quiz 3 - Thurs Jan 4
A Schedule Has Been Posted In Your Google Classroom For
January Cumulative Assessments
Tues Dec 19: Please review our introduction to the Cell Membrane. Be familiar with the parts of the phospholipid bilayer, their functions and be able to label a diagram: (a) polar phosphate "heads", (b) fatty acid "tails", (c) membrane proteins, (d) cholesterol and (e) carbohydrates. Also review what is meant by the fluid mosaic model of the cell membrane.
Fri Dec 15: Please review our continued notes and discussion of the Eukaryotic Plant Cell and its unique organelles: (1) cell wall, (2) central vacuole and (3) chloroplast. Also review our introduction to the Cell Membrane. Note the meaning of the term "selectively permeable" and that the membrane acts like a gate allowing entry of particles based on (a) particle size and (b) particle charge. Be familiar with the parts of the phospholipid bilayer, their functions and be able to label a diagram: (a) polar phosphate "heads", (b) fatty acid "tails", (c) membrane proteins, (d) cholesterol and (e) carbohydrates...to be continued
Unit 2 Quiz 3 - Thurs Jan 4
A Schedule Has Been Posted In Your Google Classroom For
January Cumulative Assessments
Thurs Dec 14: Please review our introduction to the Eukaryotic Plant Cell. Be familiar with the special organelles of this cell which are different from the animal cell: (1) cell wall, (2) central vacuole and (3) chloroplasts. Be able to label a diagram of a eukaryotic plant cell.
Tues Dec 12: Please review our continued notes and discussion exploring the Organelles of the Eukaryotic Animal Cell: (8) transport vesicles, (9) vacuole, (10) cytoplasm, (11) cytoskeleton and (12) cilia / flagella. Be able to label a cell diagram.
Mon Dec 11: Please review our continued notes and discussion exploring Organelles of the Eukaryotic Cell: (6) mitochondria, (7) lysosomes, (8) transport vesicles...to be continued.
Fri Dec 8: Please review our continued notes and discussion exploring the Organelles of the Eukaryotic Animal Cell: (3) ribosomes, (4) endoplasmic reticulum - smooth ER & rough ER, (5) Golgi apparatus...to be continued.
Wed Dec 6: Please review our continued notes and discussion exploring Prokaryotic Cells and Eukaryotic Cells based on the following headings: (3) structure & size, (4) organelles present or absent, (5) DNA, (6) number of cells and (7) metabolism. Also review our introduction to the Eukaryotic Animal Cell. Be familiar with the following organelles, their functions and position on a diagram: (1) nucleus, (2) nucleolus...to be continued.
Tues Dec 5: Students started class completing a worksheet comparing the microscope types. Please review our notes and discussion exploring Two Major Types of Cells: Prokaryotic Cells & (2) Eukaryotic Cells. Note the differences between these cells with respect to the following headings: (1) organisms included...to be continued.
Fri Dec 1: Please review our continued notes and discussion
exploring the Types of Microscopes: (2) transmission electron
microscope (TEM), (3) dissecting microscope (stereoscope) and (4) scanning electron microscope (SEM). Students completed a worksheet comparing these microscope types.
Lab 1 - Cmpd Light Microscope (Biological Drawing + Biological Size)
Due Tues
Thurs Nov 30: We started class discussing the correct format for a biological drawing. Students worked in the lab examining their wet mount of an onion cell for Lab #1 - The Compound Light Microscope. Students completed a biological drawing of the onion cell and estimated its biological size. For the remainder of the period students worked on their lab report.
Lab 1 - Cmpd Light Microscope (Biological Drawing + Biological Size)
Due Tues
Wed Nov 29: Students completed Unit 2 Quiz 1 - The Compound Light Microscope (Parts and Functions). For the remainder of the period students went to the lab to begin Lab #1 - Compound Light Microscope. Today they began preparing a wet mount of an onion cell using iodine as a stain...to be continued.
Mon Nov 27: Please review our continued notes and discussion of Compound Light Microscope Terms and Calculations: (9) calculating biological size (formula and sample problems - refer to the worksheet). We also introduced our the Types of Microscopes and how they function (refer to the handout): (1) compound light microscope...to be continued.
Unit 2 Quiz 2 Microscope Parts and Functions (Tues)
Wed Nov 22: Please review our continued notes and discussion of Compound Light Microscope Terms: (3) depth of field, (4) working distance, (5) resolving power, (6) image inversion, (7) specimen, (8) wet mount procedure, (9) calculating biological size (formula and sample problems)...to be continued.
Lab 4 - Competition (Due Mon)
Unit 2 Quiz 2 Microscope Parts and Functions (Wed)
Tues Nov 21: Students completed their final observations for Lab 4 - Competition.
Lab 4 - Competition (Due Mon)
Unit 2 Quiz 2 Microscope Parts and Functions (Wed)
Mon Nov 20: Students wrote Unit 2 Quiz 1.
Quiz 2 - Parts & Functions of Comp Light Microscope (Wed Nov 29th)
Thurs Nov 16: Please review our continued notes and discussion exploring Parts and Functions of the Compound Light Microscope: (d) revolving nosepiece, (e) body tube, (f) stage, (g) arm, (h) course adjustment knob, (i) fine adjustment knob and (j) diaphragm. Also review the following terms and calculations: (1) total magnification, (2) field of view...to be continued.
Unit 2 Quiz 1 (Mon Nov 20th)
Wed Nov 15: Students completed Week 2 observations for Lab 4 - Competition.
Unit 2 Quiz 1 (Mon Nov 20th)
Fri Nov 10: Please review our continued notes and discussion exploring the contribution of the following scientists to the Cell Theory: (2) Leeuwenhoek, (3) Brown, (4) Schleiden, (5) Schwann, (6) Von Mohl, (7) Perkin and (8) Virchow. Be familiar with the 4 points of the Cell Theory. Also review our introduction to the compound Light Microscope. Note the following parts / functions and be able to label a diagram: (a) ocular lens, (b) objective lens, (c) condenser lens...to be continued.
Unit 2 Quiz 1 (Mon Nov 20th)
Thurs Nov 9: Please review our continued notes and discussion of the Spontaneous Generation Biogenesis Debate surrounding the origin of the first cells: (5) Spallanzani, (6) Pasteur and (7) Miller & Urey. Also review the contributors to the Cell Theory: (1) Hooke, (2) Leeuwenhoek...to be continued. Note the importance of the microscope in the development of this theory.
Wed Nov 8: Students wrote the Unit 1 Test - "Ecosystem Interactions and Population Dynamics".
Mon Nov 6: This period was used for review in preparation for the upcoming Unit 1 Test. The class also collected Week 1 of data for Lab 4 - Competition.
Unit 1 Test - Wed Nov 8
Fri Nov 3: Please review our introduction to Unit 2: Processes That Sustain Life (The Cell). We started this unit with a discussion surrounding 2 Theories Regarding The Origin of The First Cells: spontaneous generation vs biogenesis. Note the scientists who supported each side of this debate and their experiments: (1) Aristotle, (2) Van Helmont, (3) Redi, (4) Needham, (5) Spallanzani...to be continued.
Unit 1 Test - Wed Nov 8
Wed Nov 1: Please review our continued notes and discussion of (4) Population Pyramids - stable populations. Also review our discussion of an Ecological Footprint. Note the definition and the 6 categories of humans demands. Also review the definition of biocapacity. Note that the large ecological footprint of developed countries has a tremendous impact on biodiversity. Note 3 types of biodiversity and how they are impacted by human population growth: (a) species diversity, (b) genetic diversity and (3) ecosystem diversity.
Unit 1 Test - Wed Nov 8
Tues Oct 31: Please review our continued notes and discussion exploring methods of measuring population growth (3) Demographic Transition Model - Stages 1 through Stage 5 and (4) Population Pyramids. Be familiar with the shapes of expansive, constrictive and stable populations and how these can be used to predict population growth.
Unit 1 Test - Wed Nov 8
Mon Oct 30: Please review our introduction to Human Population Growth. Note that humans follow an extreme k strategy. Note the importance of the Industrial Revolution and advances in science and medicine that have resulted in a J-shaped population growth curve explosion. Review the methods of measuring population growth: (1) percent population growth, (2) doubling time, (3) Demographic Transition Model...to be continued.
Unit 1 Test - Wed Nov 8
Thurs Oct 26: Students completed a pre-lab and setup Lab 4 - Competition.
Unit 1 Test - Wed Nov 8
Wed Oct 25: Please review our continued notes and discussion of Interactions in Communities: (3) symbiosis (a) mutualism, (b) commensalism and (c) parasitism and (4) invasive species interactions. Note chemical control and biological control of invasive species.
Unit 1 Test - Wed Nov 8
Mon Oct 23: Please review our notes and discussion of Interactions in Communities: (1) Competition. Note why organisms compete and the 2 types of competition: (a) intraspecific competition (know how organisms reduce this competition) and (b) interspecific competition (know the 2 possibilities coexistence or competitive exclusion), (2) predator prey interactions, (3) symbiosis...to be continued.
Fri Oct 20: Please review our notes and discussion of Life Strategies of Organisms (Reproductive Patterns). Note the factors that impact the reproductive patterns of organisms ex: number of offspring and level of parental care. Be familiar with 2 opposite strategies (1) r strategy ex: fish and (2) k strategy ex: mammals. Be able to sketch and explain the survivorship curve for both.
Assign 5 - Due Mon
Thurs Oct 19: Please review our continued notes and discussion of Carrying Capacity. Note the definition of Limiting Factors and 2 types of limiting factors: (a) density dependent factors - biotic factors and (b) density independent factors - abiotic factors. Be familiar with the term environmental resistance. We also introduced Life Strategies...to be continued.
Tues Oct 17: We completed population change sample problems and discussed a population explosion (infestation). Also review 2 Scenarios For Population Growth: (1) population growth in unlimited environments. Note the J-shaped curve and its lag phase and exponential phase. Be familiar with the terms biotic potential and fecundity. (2) Population growth in limited environments. S-shaped curve and its 3 stages: lag phase, exponential phase and equilibrium phase. Be familiar with the term carrying capacity and be able to recognize this value on a graph.
Mon Oct 16: Students completed Lab 3 - Mark Recapture Sampling. Please review our continued notes and discussion of Changes in Populations. Be familiar with our sample problems for calculating a change in population size and the new population size...to be continued.
Lab 3 - Mark Recapture Sampling (Due Tues)
Thurs Oct 12: Please review our continued notes and discussion of Population Sampling Methods: (3) mark-recapture sampling. Note the definition, when this sampling method is chosen (for moving organisms such as animals), the 5 assumptions is maintain accuracy (ex: the animal does not lose a tag) and the formula. We worked through a sample problem and completed a pre-lab for Lab 3 - Mark Recapture Sampling. Also review our introduction to Changes in Populations. Note that this is part of a branch of Biology called demography. Pop[ulations will change based of these 4 demographics: (a) birth (natality), deaths (mortality), immigration (in) and emigration (out)...to be continued.
Wed Oct 11: Students gathered data for Lab #2 "Quadrat Sampling".
Lab 2 - Quadrat Sampling (Due Thurs)
Tues Oct 10: Please review our continued notes and discussion of Sampling Methods: (2) quadrat sampling. We worked through a sample problem and completed a prelab for Lab 2 - Quadrat Sampling.
Please Bring Outdoor Clothing For A Lab Tomorrow
Thurs Oct 5: Please review our notes and discussion exploring Distribution Patterns For Organisms: (1) clumped distribution, (2) uniform distribution and (c) random distribution. Also review our discussion of Precision vs Accuracy. Note the percent error formula which measures measures accuracy.
Lab 1 - Line Transect Sampling (Due Tues)
Wed Oct 4: Students went outside to gather data for Lab 1 - Line Transect Sampling.
Lab 1 - Line Transects (Due Tues)
Fri Sept 29: Students wrote the Unit 1 Quiz.
Thurs Sept 28: Please review our continued notes and discussion of Population Sampling. Be familiar with why sampling is useful, why biologists take many samples (increasing precision) and the importance of a random sample. We discussed our first sampling methods: (1) line transect sampling. We worked through a sample problem for a line transect sample...to be continued.
Quiz - Fri Sept 29th
Please Bring Clothes For An Outdoor Lab In Wednesday's Class
Tues Sept 26: Students were given the first portion of the period to complete their Canadian Biome Research. Please review our introduction to Population Sampling. Note the definitions of population size and population density along with appropriate units. We discussed how organisms are counted through (a) direct observation, (b) indirect methods (track, nest) and (c) through sampling. We discussed why sampling is useful...to be continued.
Canadian Biome Research (Due Thurs)
Mon Sept 25: Please review our continued notes and discussion of Canadian Biomes: (2) Marine Biome (b) intertidal zone (upper, middle and lower intertidal) (c) estuaries. (3) Freshwater Biomes (a) lakes and ponds (i) littoral zone, (ii) limnetic zone, (iii) benthic zone and (b) rivers. We introduced Assign 3 - Canadian Biome Research.
Canadian Biome Research (Due Thurs) Quiz 1 - Fri Sept 29th
Thurs Sept 21: Please review our continued notes and discussion of Canadian Biomes; (1) Terrestrial Biomes (c) temperate deciduous forest and (d) grasslands. (2) Marine Biome (a) pelagic zone - neritic zone and oceanic zone (b) intertidal zone (upper, middle and lower intertidal)...to be continued.
Quiz 1 - Fri Sept 29th
Wed Sept 20: Please review our notes and discussion of Canadian Biomes; (1) Terrestrial Biomes (a) tundra, (b) boreal forest, (c) temperate deciduous forest...to be continued.
Quiz 1 - Fri Sept 29th
Tues Sept 19: Please review our continued notes and discussion of Energy Flow In Ecosystems. Note the transfer of energy to other forms and the Rule of 10 which limits the amount of energy available to higher trophic levels. Also review our introduction to Canadian Biomes. Note the definition of a biome and the 4 factors that determine the location of biomes: (1) climate, (2) latitude, (3) soil and (4) altitude. Note the factors that determine the spread of species within a biome: (1) abiotic factors and (2) an organism's range of tolerance for these abiotic factors...to be continued.
Assign 2 - Biological Hierarchy (Due Wed)
Thurs Sept 14: Please review our continued notes and discussion of Energy Flow In Ecosystems. Note how ecologists represent energy flow through (1) food chains - note the producer & consumer roles as well as the various trophic levels. (2) food webs and (3) pyramids of energy. Be familiar with the First Law of Thermodynamics...to be continued.
Tues Sept 12: Please review our notes and discussion of Energy in Ecosystems. Note how energy is stored through (1) photosynthesis or (2) chemosynthesis. Note the similarities and differences between these equations. Also note how energy is used through (1) cellular respiration. The source of energy in ecosystems is continuous (solar energy) and it moves in a 1-way flow from sun to Earth. be familiar with the diagrams that ecologists use to represent energy flow: (1) food chain...to be continued.
Fri Sept 8: We introduced Unit 1 Ecosystem Interactions and Population Dynamics. Note the definition of ecology and an ecologist. Ensure that your review the following components of the Biological Hierarchy: (1) organism (species), (2) population, (3) community, (4) ecosystem, (5) biome and (6) biosphere.
Assign 1 - Biological Hierarchy (Due Mon)
Wed Sept 6: Welcome to Biology 2201! Let's look forward to a great year of learning together. Today you received your course descriptor and evaluation scheme, had the opportunity to join our Google Classroom and were introduced to my website. The remainder of the period was used to distribute textbooks.
