Cell Division

Cell Division

How cells make new cells

Which stage of the cell cycle is pictured here?

This cell is in Interphase.

During Interphase, cells grow to twice their size and copy all of their cell parts and DNA. While completing these tasks, it is also doing its normal jobs and saving energy that will be needed later to divide.

Because there is so much that needs to be accomplished, this phase is the longest and the one the cell spends most of its life in.

Multiple Select

Which of the following tasks are completed during interphase. (Check all that apply.)

• The cell carries out its normal jobs.

• The cell grows.

• The cell begins saving energy for division.

• The cell copies its DNA and cell parts.

Multiple Choice

Which organelle is DNA usually found in?

• ribosome

• vacuole

• chloroplast

• nucleus

Multiple Choice

Chromosomes are made up of two identical sister _____________.

• bases

• nuclei

• chromatids

• cells

Multiple Choice

In DNA, Adenine bonds with ______________.

• Guanine

• Thymine

• Cytosine

• Adenine

Which phase of mitosis is shown here?

This cell is going through prophase of mitosis.

In prophase, the nuclear membrane breaks down to allow the duplicated chromosomes to spill out into the cytoplasm. Spindle fibers also begin to grow. These structures will be needed later to move the sister chromatids to different places in the cell.

Multiple Select

Which of the following happen during prophase? (Check all that apply)

• The DNA coils up to form a duplicated chromosome.

• The nuclear membrane breaks down.

• The cytoplasm splits.

• Spindle fibers start to grow.

Multiple Choice

The structure labeled A is a(n)

• chromatid

• centriole

• centromere

• chromophere

Multiple Choice

The structures labeled B are

• centrioles

• chromatids

• centromeres

• chromopheres

Which phase of mitosis is shown here?

This cell is going through metaphase of mitosis.

During metaphase, the duplicated chromosomes line up along the middle of the cell and the spindle fibers attach to their centromeres.

Multiple Select

Which of the following tasks occur in metaphase? (Check all that apply.)

• The nucleus divides.

• The chromosomes line up in the middle of the cell.

• The spindle fibers attach to the centromeres.

• The sister chromatids get pulled apart.

Which phase of mitosis is shown here?

This cell is going through anaphase of mitosis.

In anaphase, the spindle fibers begin to shorten, pulling the sister chromatids away from one another to opposite sides of the cell.

Multiple Select

Which of the following tasks take place during anaphase? (Check all that apply.)

• The nuclear membrane breaks down.

• The chromosomes line up in the middle of the cell.

• The cytoplasm divides.

• The sister chromatids get pulled to opposite sides of the cell.

Which phase of mitosis is shown here?

This cell is in telophase of mitosis.

In telophase, the sister chromatids have been separated and the cell creates a new nuclear membrane around each set of DNA. At this point, the spindle fibers are no longer needed, so they break down.

Multiple Select

Which of the following tasks occur during telophase?

• New nuclear membranes form around the DNA.

• Spindle fibers start to grow.

• The DNA gets copied.

• The DNA begins to unwind.

Multiple Choice

Place these cells in order of mitosis.

• A, B, C, D, E
• B, E, D, A, C
• C, E, A, D, B
• B, D, A, E, C

What stage of the cell cycle is pictured here?

This cell is in the final step of the cell cycle, called cytokinesis.

During cytokinesis, the cell membrane of the cell pinches in on itself. This causes the cytoplasm and other cell parts to be evenly distributed into two new, identical cells. These new cells are called daughter cells.

Multiple Select

Which of the following tasks occur during cytokinesis? (Check all that apply.)

• The cell membrane pinches in.

• The cell grows to twice its size.

• The cytoplasm and cell parts are evenly divided into two new cells.

• Spindle fibers attach to the chromosomes.

Poll

If the quiz was given tomorrow, what grade would you anticipate earning?

• A

• B

• C

• D

• F