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S347 Cell Cycle and Regulation

Biology

12th Grade

Used 9+ times

S347 Cell Cycle and Regulation
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30 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the role of protein kinases?

remove phosphate groups to deactivate enzymes

trigger apoptosis

add phosphate groups and energy to activate enzymes

stop the cell cycle

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Which of these may be assessed by various proteins during a "checkpoint"? CHECK ALL THAT APPLY

Ensure that all chromosomes have lined up in the center of the cell before sister chromatids separate

Ensure that spindle fibers have attached to all centromeres before cell division

Ensure that DNA has been replicated properly

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following correctly describes cells that are in the G0 phase?

Mature nerve and muscle cells are unable to divide and are permanently in G0.

Many cells enter G0 when they reach the checkpoint during the M phase.

Cells in G0 are growing and preparing for cell division.

DNA replication occurs during G0.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The graph represents the amount of DNA in the nucleus of each cell during the cell cycle.
Which region represents the G2 phase?

I
II
III
IV

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

How does the concentration of cyclin dependent kinases (Cdk) change as the cell proceeds through the cell cycle?

Cdk concentration remains constant.
Cdk concentration increases during interphase and decreases during mitosis.
Cdk concentration decreases during interphase and increases during mitosis.
Cdk concentration correlates directly with MPF concentration.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

How does the concentration of cyclin change as a cell goes through the cell cycle?

Cyclin concentration remains constant.
Cyclin concentration increases during interphase and decreases during mitosis.
Cyclin concentration decreases during interphase and increases during mitosis.
Cyclin concentration is inversely related to MPF concentrations.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The normal function of a tumor suppressor gene is 

to produce growth signals
to code for proteins that inhibit, or slow, cell division
to cause the cell to move faster through the cell cycle
to attack cancer cells in the body

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