Cell Growth & Division Test Review I

Plant cells separate their cytoplasm during cytokinesis when protein threads pinch the cell in half.

• True

• False

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NGSS.HS-LS1-4

Stem cells are important to multicellular organisms because of their

• capacity to differentiate.

• tendency to maintain homeostasis.

• potential to become totipotent.

• ability to relocate.

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NGSS.HS-LS1-4

Substances known to produce or promote cancer are called

• carcinogens.

• kinases.

• cyclins.

• malignancies.

The phase of the cell cycle that occupies most of an average cell’s life is

• G1.

• mitosis.

• G2.

• S.

Which of the following is a direct result of a normal cell's ability to express only certain genes?

• Cells can become totipotent.

• Cells can grow and reproduce.

• Cells can mutate and adapt.

• Cells can differentiate and specialize.

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NGSS.HS-LS1-4

Which of the following is not a reason cells divide?

• The cell gets too big to process and transport nutrients.

• New cells are needed for growth.

• Cells need to be replaced after damage to organism.

• Surface area-to-volume ratio becomes too large.

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NGSS.HS-LS1-4

Which of the following is true of malignant tumors?

• They do not require treatment.

• They are easily removed through surgery.

• They can cause tumors in other parts of the body.

• They contain cells that stay clustered together.

Which sequence shows the progression from least complex structure to most complex structure?

• cell organ tissue organ system

• cell tissue organ organ system

• organ system tissue organ cell

• organ system organ tissue cell

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NGSS.HS-LS1-2

The first three phases of the cell cycle are collectively known as

• a gap.

• telophase.

• mitosis.

• interphase.

Refer to the illustration above. Mitosis begins with the stage shown in diagram

• 1

• 2

• 3

• 4

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NGSS.HS-LS1-4