Biology 3201
Course Description
This course continues the study of introductory biology. Topics include the homeostasis of human body systems, Mendelian and modern genetics, human reproduction and evolutionary processes.
Authorized Learning Resource
Homework Central
Fri Oct 23: Upcoming! Please review our continued notes and discussion of Topic J - Extra-Embryonic Membranes. Be familiar with the 4 protective membranes, location on a diagram and their functions: (2) chorion (chorionic villi and placenta), (3) allantois and (4) yolk sac. Review our discussion of the 2 types of twins: (1) fraternal twins (dizygotic) and (2) identical twins (monozygotic). Also review our introduction to Topic K - Teratogens. Note the definition of a teratogen, the critical period of development and how teratogens can reach the child even though blood supplies of mom and baby are separate. Be familiar with the following teratogens and their impact on development (1) nicotine in cigarette smoke, (2) alcohol and fetal alcohol syndrome, (3) thalidomide and prescription meds, (4) infectious diseases and (5) environmental pollutants (ex: mercury)....to be continued.
Assign 8 - Human Development & Teratogens (Due Mon)
Wed Oct 21: Please review our continued notes and discussion of Topic I - Human Development: (6) gastrulation and differentiation (gastrula) and (7) neurulation (neurula). Also review our introduction to Topic J - Extra-Embryonic Membranes. Be familiar with these 4 protective membranes, their location on a diagram and their functions: (1) amnion (amniotic sac and fluid), (2) chorion (chorionic villi and placenta), (3) allantois...to be continued.
Assign. 7 - Human Development (Due Fri)
Tues Oct 20: Please review our continued notes and discussion of Topic I - Human Development. Note the human structure, day after fertilization, location and description involved with the following processes: (2) fertilization (zygote), (3) cleavage (embryo), (4) cleavage continued (morula), (5) implantation (blastocyst - including trophoblast and inner cell mass), (6) gastrulation and differentiation (gastrula)...to be continued.
Fri Oct 16: Please review our continued notes and discussion of Topic H - The Menstrual Cycle. (2) Uterine Cycle (a) menstruation stage - Days 1-5. Be familiar with the following important dates in the cycle: (1) menstruation days, (2) ovulation and (3) most fertile period. Be familiar with menopause and the corresponding changes. Also review our introduction to Topic I - Human Development. Note the human structure, day after fertilization, location and description involved with the following processes: (1) ovulation (immature egg), (2) fertilization (zygote)...to be continued.
Assign 6 - Repr. Pathway and Menstrual Cycle (Due Tues)
Thurs Oct 15: Please review our introduction to Topic H - The Menstrual Cycle. Note the definition of the following terms: menstrual cycle, follicle, corpus luteum (yellow body) and endometrium. Be familiar with the functions of the 4 hormones that regulate the menstrual cycle: (1) pituitary hormones: (a) follicle stimulating hormone (FSH) and (b) luteinizing hormone (LH). (2) ovarian hormones (a) estrogen and (b) progesterone. The menstrual cycle is divided into 2 cycles and 3 stages. Be familiar with the hormonal changes, dates and events within each stage and be able to identify these hormones on a graph: (1) Ovarian Cycle (a) follicular stage - Days 5-14 and (b) luteal stage - Days 14-28. (2) Uterine Cycle (a) menstruation stage - Days 28-5...to be continued.
Wed Oct 14: Students wrote Unit 1 Quiz 2. We discussed the lifecycle of a virus (bacteriophage T4). Please review our continued notes and discussion of Topic G - Sexually Transmitted Infections (STIs). Note the complications / damage that can be caused by viral and bacterial STIs.
Assign 5 - STI Research (Due Thurs)
Thurs Oct 8: Please review our continued notes and discussion of Topic F - Human Reproductive Pathway. Note the structures and functions and be able to label these on a diagram: (2) Female - (b) fimbriae, (c) oviduct, (d) uterus, (e) cervix and (f) vagina. Also review our introduction to Topic G - Sexually Transmitted Infections (STIs). Note the viral and bacterial STIs including their cause, treatment and complications: (a) viral STIs - AIDS, hepatitis, herpes and HPV (b) bacterial STIs - chlamydia, syphilis and gonorrhea....to be continued.
Quiz 2 - Wed, Oct 14th
Assign 5 - STI Research (Due Thurs)
Tues Oct 6: Please review our introduction to Topic F - Human Reproductive Pathway. Note the structures and functions and be able to label these on a diagram: (1) Male - (a) testes (scrotum), (b) seminiferous tubules, (c) epididymis, (d) vas deferens, (e) urethra and the glands that dump products into the main pathway (f) seminal vesicle, (g) prostate gland and (h) Cowper's gland. Be familiar with teh reproductive hormones - testosterone and inhibin, (2) Female - (a) ovaries (follicle)...to be continued.
Mon Oct 5: Students completed Lab 2 - Flower Dissection.
Lab 2 - Flower Dissection (Due Tues)
Quiz 2 - Wed, Oct 14th
Fri Oct 2: Please review our introduction to Topic E - Reproductive Strategies. (2) Sexual Reproduction: (d) flowering plants. Be familiar with the male and female reproductive structures within a flower and their functions. Be able to label a diagram: (1) Male Stamen - (a) anther, (b) filament, (c) pollen grains. (2) Female Pistil - (a) stigma, (b) style, (c) ovum, (d) ovule and (e) ovary. Note the double fertilization of angiosperms (flowering plants).
Tues Sept 29: Please review our introduction to Topic E - Reproductive Strategies. (2) Sexual Reproduction: (b) invertebrate (jellyfish), (c) gametophyte dominant plant (moss) and the alternation of generations. (d) flowering plants. Be familiar with the male and female reproductive structures within a flower and their functions. Be able to label a diagram: (1) Male Stamen - (a) anther, (b) filament, (c) pollen grains..to be continued.
Assign 4 - Modes of Reproduction (Due Fri)
Fri Sept 25: Please review our continued notes and discussion of Topic E - Reproductive Strategies: (1) asexual reproduction. Note the various types: (c) vegetative propagation, (d) fragmentation, (e) parthenogenesis and (f) spores. (2) sexual reproduction (2) parents, variation, uses meiosis). Note the advantages of sexual reproduction and the various lifecycles: (a) vertebrate (human), (b) invertebrate (jellyfish)...to be continued.
Thurs Sept 24: Please review our notes and discussion of Topic D - Sperm vs Egg Cells. We examined physical features of sperm and egg cells based on the following characteristics: (a) relative size, (b) energy source, (c) mitochondria number, (d) number produced, (e) motility and (f) outer structures. Also review our introduction to Topic E - Reproductive Strategies: (1) asexual reproduction (1 parent, no variation, uses mitosis). Note the advantages of asexual reproduction and teh various types - (a) binary fission, (b) budding,...to be continued.
Assign 3 - Sperm vs Egg (Fri)
Wed Sept 23: Students wrote Quiz 1 - The Cell Cycle. Please review our continued notes and discussion of Topic C - Meiosis. Be familiar with the differences between (1) spermatogenesis (meiosis in males) and (2) oogenesis (meiosis in females) under the following categories: number of surviving structures, equal or unequal cytoplasm division and continuous or discontinuous process.
Assign 2 - Meiosis (Due Thurs)
Mon Sept 21: Please review our continued notes and discussion of Topic C - Meiosis. We completed a summary table for meiosis and explored the stages (1) meiosis 1 - separation of homologous chromosomes and (2) meiosis 2 - separation of chromatids. We discussed the 2 sources of variation during this process that produce unique gametes: (1) crossing over during prophase 1 and (2) independent assortment during metaphase I...to be continued.
Quiz 1 - Wednesday
Fri Sept 18: Please review our discussion of Topic B - Cancer As An Application of the Cell Cycle. Note that cancer results when the genes that control division mutate (change). The cell grows out of control to form a mass of irregular cells that do not function as healthy cells; a tumor. Be familiar with the difference between (a) benign tumors and (b) malignant tumors. Also review our introduction to Topic C - Meiosis. Note cells involved (gonads - testes or ovaries), cells produced (gametes - sperm or egg.) Note that meiosis reduces the chromosome number from diploid (2n) to haploid (n) and for this reason is sometimes called reduction division. Meiosis produces 4 genetically unique gametes that are not identical.
Quiz 1 - Wednesday
Wed Sept 16: Please review our continued notes and discussion of Topic A - The Cell Cycle. (3) cytokinesis. Note the difference between cytokinesis in animal cells (cleavage furrow) and cytokinesis in plant cells (cell plate). Students completed Lab 1 - "The Cell Cycle" by examining onion cells in various stages of this cycle.
Lab 1 - Cell Cycle (Due Fri)
Assign1 - Cell Cycle (Due Fri)
Quiz 1 - Wednesday
Tues Sept 15: Please review our continued notes and discussion of Topic A - The Cell Cycle. We then discussed key events in each of the stages accompanied with a sketch of the cell in that stage: (1) interphase (G1, S & G2), (2) mitosis (a) prophase, (b) metaphase, (c) anaphase, (d) telophase. (3) cytokinesis. Note the difference between cytokinesis in animal cells (cleavage furrow)....to be continued.
Mon Sept 14: Please review our continued notes and discussion of Topic A - The Cell Cycle. Note cells involved (somatic), cells produced (somatic) and the overall steps of the process: (1) interphase - getting ready to divide, (2) mitosis - genetic division and (3) cytokinesis - division of the cytoplasm. We then discussed key events in each of the stages accompanied with a sketch of the cell in that stage: (1) interphase (G1, S & G2). We completed a pie graph exploring the time a cell spends in each stage....to be continued.
Thurs Sept 10: Welcome to Biology 3201. I am looking forward to working with you throughout the year. This was an introductory class. We distributed course descriptors and explained how you will be evaluated in this course. The Google Classroom Code was provided and this electronic classroom will display all course content and is where assignments, quizzes and test dates will be posted. We introduced Unit 1 - Cell Reproduction and the Continuity of Life. Topic A is the Cell Cycle. Be familiar with the purpose of the Cell Cycle in both unicellular and multicellular organisms...to be continued.
Contact:
steventrimm@nlschools.ca