Cell Divisions Middle School Review

As a cell grows, it

• places more demands on its DNA.

• uses up food and oxygen more quickly.

• has more trouble moving enough materials across its cell membrane.

• all of the above

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The speed with which wastes are produced by a cell depends on the cell’s

• ratio of surface area to volume

• environment

• volume

• surface area.

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All of the following are problems that growth causes for cells EXCEPT

• DNA overload

• excess oxygen.

• obtaining enough food.

• expelling wastes

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The process by which a cell divides into two daughter cells is called

• cell division.

• metaphase.

• interphase

• mitosis.

Which of the following happens when a cell divides?

• The cell’s volume increases.

• It becomes more difficult for the cell to get enough oxygen and nutrients

• The cell has DNA overload.

• Each daughter cell receives its own copy of the parent cell’s DNA.

When during the cell cycle are chromosomes visible?

• only during interphase

• only when they are being replicated

• only during cell division

• only during the G1 phase

Which pair is correct?

• G1 phase, DNA replication

• G2 phase, preparation for mitosis

• S phase, cell division

• M phase, cell growth

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When during the cell cycle is a cell’s DNA replicated?

• G1 phase

• G2 phase

• S phase

• M phase

Which event occurs during interphase

• The cell grows.

• Centrioles appear.

• Spindle fibers begin to form.

• Centromeres divide.

The structure labeled A in Figure 10-2 called the

• centromere

• centrioles

• sister chromatids

• spindles