Biology
Unit 4
Cell Reproduction Unit Objectives
A word of warning: This unit on cell division and the next two units on DNA to protein and genetics all build on one
another. Ask questions, get re-teaching, memorize your vocabulary, and seek to understand the material.
1. Why Do Cells Divide?
A. I can explain why surface area-to-volume ratios are important to a dividing cell.
2. The Cell Cycle
A. I can identify the phases of the cell cycle from diagrams.
B. I can tell what happens in each phase of the cell cycle.
C. I can show why one phase of the cell cycle follows another.
D. I can explain why cancer is considered a disease of the cell cycle.
Vocabulary: chromatin, cell cycle, G1, S, G2, cytokinesis, mitosis, meiosis, benign and malignant tumors, metastasis,
radiation therapy, chemotherapy, “magic bullet.”
3. Chromosomes
A. I can identify the parts of a chromosome.
B. I can explain the importance of chromosomes.
C. I can tell the difference between autosomes and sex chromosomes.
Vocabulary: chromosome, sister chromatid, centromere, autosome, sex chromosome
4. Mitosis
A. I can identify the stages of mitosis from diagrams.
B. I can put the stages of mitosis in the proper order.
C. I can show why one phase of mitosis follows another.
D. I can state what types of cells undergo mitosis, and why those cells undergo mitosis.
E. I can list differences between how animal and plant cells divide.
Vocabulary: centrioles, spindle, cell plate, diploid, asexual reproduction, somatic cell, cell equator
5. Meiosis
A. I can explain how meiosis I and meiosis II are the same, yet different.
B. I can explain when and how the number of chromosomes is reduced in meiosis.
C. I can state what types of cells undergo meiosis, and why those cells undergo meiosis.
D. I can explain how meiosis produces genetic variation in offspring and why genetic variation is necessary.
E. I can explain what causes mutations.
Vocabulary: homologous chromosomes, crossing over, haploid, sexual reproduction, gamete, zygote, tetrad, chiasmata,
germ cell, sex cells vs. sex chromosomes, autosomes vs. sex chromosomes, somatic (or body) cells vs. sex cells.
6. Summary
A. I can list similarities and differences between mitosis and meiosis.
Mrs. Loyd 
cschmittloyd@waukeeschools.org
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http://loydbiology.weebly.com
Honors Biology
Unit5 Ch. 8
CHAPTER 8:
“The Cellular Basis of Reproduction and Inheritance“
day 1:
DUE: Read 8.1-2
Go over test
Lecture:

LT1: why surface area-to-volume ratios are important to a dividing cell,

LT2a-d The Cell Cycle: phases, events, sequence, cancer.

study time
Vocabulary: chromatin, cell cycle, G1, S, G2, cytokinesis, mitosis, meiosis, benign and malignant tumors, metastasis,
radiation therapy, chemotherapy, “magic bullet.”
day 2:
DUE: Read 8.3, 5, 10
Workshop Review: Cell Cycle, cancer.
Quiz: LT1, LT2a-d
Lecture:
LT3a-c: chromosome structure, importance, autosomes vs. sex chromosomes.

Animation: 2n  2n DNA Coiling: http://www.biostudio.com/c_ education mac.htm

Animation: DNA packing/mitosis: http://www.dnai.org/text/mediashowcase/index2.html?id=564
Activity: Pipe Cleaner Chromosomes
Study time:
Vocabulary: chromosome, sister chromatid, centromere, autosome, sex chromosome
day 3:
DUE: Notes 8.4, 6
Workshop Review: chromosome structure, autosomes vs. sex chromosomes
Quiz: LT3,a-c
Lecture:

LT4a-c stages of mitosis (pp130,131), logistics of stages, types of cells undergoing mitosis, cytokinesis in plants
vs. animals.

Video: Mitosis & Meiosis 16 min. program #6 Mitosis Only
Study time:
Vocabulary: centrioles, spindle, cell plate, diploid, asexual reproduction, somatic cell, cell equator
day 4:
DUE: Notes 8.6, 7,11
Review: Mitotic Events, pipe cleaners
Lecture: LT4d,e: Purpose of mitosis, plant vs. animal cell cytokinesis
Animation: http://www.loci.wisc.edu/outreach/bioclips/CDBio.html
Work on mitosis drawings as notes
Lab: Mitosis: 12 students, working alone, use Allium Root tip prepared slide, locate Metaphase. Other students
work until a microscope frees up.
day 5:
Quiz: Mitosis: may include a lab practical on identifying stages of mitosis under the microscope. (see day 3)
DUE: Notes 8.12-18
Lecture: LT5a-e, LT6: 2n  n, Homologous chromosomes, autosomes/sex chromosomes, somatic cells/gametes,
diploid/haploid cells, genetic variation, compare mitosis with meiosis.
day 6:
DUE: Review 8.14 Stages of Meiosis
Lecture: LT5d,e: sources of variation, mutations: Nondisjunction, alternate #’s of sex chromosomes, speciation
Activity: Karyotyping: correct, discuss, turn in.
day 7:
DUE: review meiosis
Quiz: Meiosis
day 8:
DUE: all homework for retakes.
Retake quizzes during class.
Pipe cleaner review
day 9:
Unit 4 TEST
Mrs. Loyd 
cschmittloyd@waukeeschools.org
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7/12/16
http://loydbiology.weebly.com