TODAY Bell Ringer Review

homework Viewer

Assignment

What are the four stages of mitosis?

Bell Ringer

MEDIA CENTER MONDAY

Viewer Assignment

Complete the entire worksheet today Draw all stages for both plant and animal mitosis Label: nuclear envelope, chromosomes and cell

membrane or wall + describe the stages of the animal mitosis

Complete page 142 1-4 on the back of the blue sheet

When you finish, be sure to complete any missing work and put the slide back in the correct sleeve

NOTE: Insert the slide with arrow first

TODAY Get clickers Bell Ringer Pretest Video

Put the following stages of cell division in order: cytokinesis, mitosis, interphase

Bell Ringer

Pygmy Tarsier

Remediation for the DNA summativewill begin Tomorrow at lunch

There will only be 3 summative'sthis quarter, meaning each one will

weigh more

TODAY Bell ringer Cell cycle

notes Worksheet

Bell Ringer What types of

cell divide during mitosis? meiosis?

How many new cells do we make every day?

2 trillion Approximately

25 million per second

Every 15 years your entire body is replaced

Terms - recap

Gametes An organisms reproductive cells (sperm

and egg cells) Somatic Cell

Any cell other than sperm and egg cells

Prokaryotic Cell Reproduction Binary fission

Exact copies of DNA transferred Cell elongates, DNA replicates, cell splits

Cell Cycle

A repeating sequence of cellular growth and division during the life of an organism

Cell Cycle

Interphase Most of the cells

life The first 3 phases of

the cell cycle Cell elongates DNA replicates

Mitosis Nucleus divides in 2

Cytokinesis The cytoplasm divides

Cancer If a gene is mutated, the protein may

not function correctly This can result in uncontrolled

growth of cells

Eukaryotic Cell Reproduction Homologous

chromosomes 2 identical

chromosomes 46 chromosomes in

human cells (2 sets of 23)

1 set from father, one set from mother

Eukaryotic Cell Reproduction Diploid

When a cell has two sets of chromosomes

Somatic cells Haploid

When a cell has one set of chromosomes

Gametes (egg and sperm cells)

Somatic cells All cells but reproductive

cells Diploid Homologous chromosomes Replication through mitosis

Gametes Reproductive cells Haploid Replication through meiosis

Eukaryotic Cell Reproduction Gene

Small segment of DNA that codes for proteins Chromosome (has thousands of genes)

The DNA and proteins associated with the DNA Chromatids

The 2 exact copies of DNA that make up each chromosome

Centromere The point where the 2 chromatids are attached

D

C

A

B

ProkaryotesEukaryotes

Binary Fission Gametes

Somatic Cells (Haploid)

(Diploid)

Meiosis Mitosis

Today Complete workbook 73-76 answer

all questions

TODAY Bell Ringer Turn in

worksheet Cell division

PPT Assignment

1. What stage of the cell cycle does a cell spend most of its time in? 2. What types of cells are diploid3. What are the stages of mitosis

Bell Ringer

Mitosis - Terms

Centrosome Releases spindles and

winds them up Spindles

move chromosomes during cell division

Mitosis – STEP 1

Prophase Chromosomes

coil up Nuclear

envelope dissolves

Spindle form from centrosome

Mitosis – STEP 2

Metaphase Chromosomes

move to the center and line up

Spindle fibers link to chromatids

Mitosis – STEP 3

Anaphase The

chromosomes separate due to the spindle fibers

Mitosis – STEP 4 Telophase

A nuclear envelope forms around the chromosomes

Chromosomes uncoil

Cytokinesis

Starts when mitosis ends

Animal Cells The cytoplasm in the

cell is split in half forming 2 separate cells

Cytokinesis

Plant Cells Because of cell wall, a cell plate is formed

in the middle which makes the new wall

The remainder of the day Complete mitosis packet

Use your notes and 5.2 (Page 138) in your book if needed

TODAY Bell Ringer Meiosis notes Short video Assignment

1. What are the 3 stages of the cell cycle?

Bell Ringer

Dead Leaf

5 days of office hours leftFor remediation and Retaking the first summative

Put in the correct order

1

2

3

4

Mitosis

1 2 3 4

Eukaryotic Cell Reproduction Zygote

The fusion of 2 haploid gametes (egg and sperm)

Fertilization

Eukaryotic Cell Reproduction Autosomes

Chromosomes that are not involved in determining the gender

Sex chromosomes Chromosome that contain genes that

determine gender

Eukaryotic Cell Reproduction Male XY chromosome Female XX chromosome

Who determines the gender of the child?

Eukaryotic Cell Reproduction

Karyotype A photo of all

chromosomes for an individual

Helps determine possible genetic disorders

For the remainder of today Chapter 6.1 (page 90-92) Also make sure you have

completed 5.1.5.2 and 5.3 (page 74-81)

TODAY Bell Ringer Meiosis notes Assignment

What is the name of the process when a zygote forms?

Bell Ringer

4 days of office hours leftFor remediation and Retaking the first summative

Meiosis Provides genetic variation Cell division for gametes Produces 4 cells (mitosis 2) Involves 2 divisions of the nucleus

Meiosis I and Meiosis II

How Unique Are You? Number of possible genetically

different siblings Between 2 people

Approximately 8.5 million genetically different sperm cells

And 8.5 million different eggs cells 8.5mill x 8.5mill About 70 trillion

Another words, there was a 1 and 70 trillion chance you will be you just based on your parents

Meiosis – STEP 1

Prophase I Crossing-over

When portion of chromatids are exchanged

Provides genetic variation

Meiosis – STEP 2

Metaphase I Chromosomes

move to the center and line up

Spindles attach

Meiosis – STEP 3

Anaphase I Homologous

chromosomes move to opposite ends of the pole Because of

spindles

Meiosis – STEP 4 Telophase I

Cytokinesis occurs

Meiosis II – STEP 5

Prophase II A new spindle

forms around chromosomes

Meiosis II – STEP 6

Metaphase II Chromosomes

move to the center and line up

Meiosis II – STEP 7

Anaphase II The

chromosomes move to opposite poles of the cell

Meiosis II – STEP 8 Telophase II

Cytokinesis occurs 4 haploid offspring

cells

Types of Reproduction

Sexual Reproduction When 2 parents each form

reproductive cells that have one half the number of chromosomes

Asexual When a single parent passes copies

of all its genes to each offspring No fusion of haploids Spores

Allow for reproduction without another cell

Hydra

Buds off new hydra

Types of Reproduction Clone

An organism genetically identical to its parent

Meiosis in Females

Oogenesis The process by

Only 1 egg (ovum) forms, the other cells (Called polar bodies)die

Ovary Ovary

Terms Biotechnology

Using living things or their byproducts as a tool

Yeast to cause dough to rise Genetic engineering – Big

chickens, food etc Pollution fighting bacteria

Genetic Recombination Same as crossing over Mixing of DNA segments

1

3

2

5

4

6

8

7

DUE TODAY1. Create a Venn Diagram comparing Mitosis and Meiosis,

include the following terms: Crossing over, somatic, chromosomes, haploid, diploid, gamete, nuclear envelope, cytokinesis, spindles, produces 4 new cells.

2. Draw and label a chromosome: include chromosome, chromatid, and centromere.

3. What are the steps of mitosis and meiosis4. What are the 3 main stages of the cell cycle?

Page 137 # 5,6Page 142 # 1Page 147 # 1,3,4Page 150 # 1,5Page 171 - # 3,4,5

DUE TODAY1. Create a Venn Diagram comparing Mitosis and Meiosis,

include the following terms: Crossing over, somatic, chromosomes, haploid, diploid, gamete, nuclear envelope, cytokinesis, spindles, produces 4 new cells.

2. Draw and label a chromosome: include chromosome, chromatid, and centromere.

3. What are the steps of mitosis and meiosis4. What are the 3 main stages of the cell cycle?

TODAY Viewer Lab DUE TODAY Do not get any lab materials

until after directions are given

Test TomorrowTutoring after school today

(2:45-3:45) (Test Prep.)

Meiosis in Males Spermatogenesis

The process by which gametes are produced in male animals

Occurs in testes The 4 haploid cells change form and

develop a tail

TODAY If you need to, finish your quiz first Complete crossword puzzle

Counts towards participation grade

Peacock Mantis Shrimp

Test Thursday

19 Down: should be cytokinesis occurs in this type of cell, not requiring a cell plate

2. Telophase

7. Male

10. Gametes

13. Meiosis

14. Female

16. Spermatogenesis

17. Prophase

18. Interphase

21. Independent Assortment

26. Spindles

28. Chromosome

29. Somatic cell

30.Sexual Reproduction

31. Down Syndrome

32. Binary Fission

1. Fertilization

3. Autosomes

4. Gene

5. Mitosis

6. Karyotype

8. Chromatid

9. Male

11. Centromere

12. Cytokinesis

15. Asexual Reproduction

19. Animal Cells

20. Sex chromosomes

22. Cell Division

23. Clone

24. Cancer

25. Zygote

27. Oogenesis

ACROSS

DOWN

Take home and study this for the test on Thursday

TODAY Jeopardy Review

Get into your groups As usual, winners get bonus points on

the test Test tomorrow

New Rules For JeopardyNo team will loose points for incorrect answersEach team can make 2 attempts in answering but they cannot be back to back

TODAY Test

14 fill in the blanks 36 multiple choice

Tarpon

Word Bank Sex Twin Male Zygote Interphase Fertilization Chromosome Clone Gene Diploid Homologous

Female Mitosis Meiosis Fission Autosome RNA DNA Down

Syndrome Chromatids Karyotype Centromere ChromoPhoto

STUDY AID FOR MITOSIS/MEIOSIS Test Somatic cells

All cells but reproductive cells Diploid Homologous chromosomes Mitosis

Gametes Reproductive cells Haploid Meiosis

Prokaryotes Eukaryotes

Binary Fission Gametes Somatic

Cells (Haploid) (Diploid)

Meiosis Mitosis4 cells 2 cells

Crossing over

(Reproductive cells)

Know that crossing over is unique to prophase 1 of meiosis and that it means DNA gets mixed up which causes genetic variation

Understand that a karyotype is used to identify possible genetic disorders as well as gender

Know the structure of chromosome (centromere, chromatids, gene)

Know that a gene is a small section of DNA The 3 stages of the cell cycle and what occurs in each

(interphase (DNA duplicated), mitosis (Nucleus divides, cytokinesis (Cell or splits))

Know that spindles move chromosmes around in the cell Know that sex chromosomes determine gender and

autosomes are all other chromosomes Male determines the gender because of the Y