TOPIC 9 DAY 2 MITOSIS AND CYTOKINESIS

Which cell in the image above indicates a cell that is in the metaphase of mitosis?

• Cell A

• Cell B

• Cell C

• Cell D

Answer explanation

Chromosomes line up in the middle of the cell during metaphase. META = MIDDLE

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SC.912.L.16.14

The diagram provides information about a carrot cell. A carrot cell contains 18 chromosomes.

Which of the following diagrams illustrate the correct number of chromosomes in new cells produced by mitosis? 

• 
• 
• 
• 

Answer explanation

Mitosis maintains the number of chromosomes. If a cell has 46 chromosomes, its two daughter cells will still have 46 chromosomes after mitosis.

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NGSS.HS-LS1-4

In the image above, which cell indicates a cell whose nuclear envelope is dissolving?

• Cell A

• Cell B

• Cell C

• Cell D

Answer explanation

A dissolving nuclear envelope is representative of a cell in prophase. This is evident from the changes in the structure and appearance of the nuclear envelope compared to the other cells.

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SC.912.L.16.14

Use the image above to determine the correct order of mitosis in animal cells.

• A – B – C – D

• B – C – A – D

• C – A – D – B

• C – B – A – D

Answer explanation

The correct order of mitosis in animal cells is C – B – A – D.

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SC.912.L.16.14

What is the name of the structure labeled by the letter X in the diagram above?

• Spindle fiber

• Centriole

• Centromere

• Chromosome

Answer explanation

The structure labeled X in the diagram is called a centriole. It is responsible for organizing the spindle fibers during cell division.

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SC.912.L.14.2

A cell forms new cells during the cell cycle. The diagram above summarizes the stages of the cell cycle. Which of the following occurs during mitosis?

• The cell membrane pinches one cell into two.

• The parent cell takes in nutrients and doubles in size.

• The chromosomes of the parent cell are copied.

• The nucleus of the parent cell divides into two nuclei.

Answer explanation

During mitosis, the nucleus of the parent cell divides into two nuclei.

Tags

SC.912.L.16.14