9-2 MITOSIS AND CYTOKINESIS

WHAT KEY EVENTS HAPPEN IN THE CELL DURING MITOSIS AND CYTOKINESIS?

JOURNAL

Come up with as many synonyms for the word “copy” as you can.

JOURNAL

COPY

EUKARYOTIC CELL CYCLE

What do you already know?

MITOSIS CHALLENGE

What key events happen during each stage of mitosis?1.Obtain a note sheet, mitosis flashcards, microscope and onion root tip slides

2.Use the flashcards to complete your note sheet for the FIRST stage of the cell cycle (Interphase).

3.Using your microscope, identify a cell that is undergoing this stage. Verify with Mrs. Miller

4.Move onto the next stage and repeat.

INTERPHASECell grows and

carries out cellular functions

DNA and centrioles replicate

Preparation for division

MITOSIS

A. Prophase Chromatin condenses into

chromosomes; sister chromatids attached at the centromere

Nuclear membrane disintegrates

Nucleolus disappears

Centrioles move to poles of cell and spindle begins to form

MITOSISB. Metaphase:Chromosomes attach to spindle apparatus and line up at equator of cell

MITOSIS

C. Anaphase:Microtubules

shorten, pulling sister chromatids apart.

Individual chromosomes move to poles of the cell

MITOSIS

D. Telophase:Chromosomes reach

poles of cell and “relaxes” into chromatin

Nuclear envelop reforms, nucleolus becomes visible

Cell membrane begins to pinch

CYTOKINESIS

Splits one cell into two

Animal Cell – membrane pinches inwardPlant Cell – Cell plate forms

RESULT

Each daughter cell has identical set of chromosomes

View it in action

LABEL EACH PHASE OF MITOSIS AND PLACE THE STAGES IN THE CORRECT ORDER.

1. A

2. B

3. C

4. D

A. interphase

B. prophase

C. metaphase

D. telophase

Which is the first phase of mitosis?

Cellular Reproduction

Chapter Diagnostic Questions

Chapter

1. A

2. B

3. C

4. D

Cellular Reproduction

Chapter Diagnostic Questions

Chapter

A. interphase

B. metaphase

C. anaphase

D. telophase

During what phase do the sister chromatids line up in the middle of the cell?

1. A

2. B

3. C

4. D

Cellular Reproduction

Chapter Diagnostic Questions

Chapter

A. cytokinesis

B. interphase

C. apoptosis

D. mitosis

Which is not a phase of the cell cycle?

1. A

2. B

3. C

4. D

Cellular ReproductionChapter

Which can more efficiently supply nutrients and expel waste products?

A. larger cells

B. smaller cells

C. cells with lower surface area to volume ratio

D. cells shaped like a cube

Section 1 Formative Questions

1. A

2. B

3. C

4. D

Cellular ReproductionChapter

At what stage does a cell spend most of its life?

A. cytokinesis

B. interphase

C. mitosis

D. synthesis

Section 1 Formative Questions

1. A

2. B

3. C

4. D

Cellular ReproductionChapter

What happens in the cell during cytokinesis?

A. The cell grows and carries out normal functions.

B. The cell copies its DNA and forms chromosomes.

C. The cell’s nucleus and nuclear material divide.

D. The cell’s cytoplasm divides.

Section 1 Formative Questions

1. A

2. B

3. C

4. D

Cellular ReproductionChapter

In what stage of the cell cycle does the cell’s replicated genetic material separate?

A. cytokinesis

B. interphase

C. mitosis

D. prophase

Section 2 Formative Questions

1. A

2. B

3. C

4. D

Cellular ReproductionChapter

Which diagram shows anaphase?

A. B.

C. D.

Section 2 Formative Questions

1. A

2. B

Cellular ReproductionChapter

At the end of mitosis the nuclear material is divided and two new cells have formed.

Section 2 Formative Questions

A. true

B. false

1. A

2. B

3. C

4. D

Cellular ReproductionChapter

This cell has completed what stage of mitosis?

A. anaphase

B. interphase

C. metaphase

D. telophase

Chapter Assessment Questions

1. A

2. B

3. C

4. D

Cellular ReproductionChapter

Standardized Test Practice

Which occurs in plant cells but not animal cells during the cell cycle?

A. formation of a cell plate

B. formation of microtubules

C. formation of a cleavage furrow at the equator of the cell

D. movement of chromosomes to the poles of the cell