Cell Cycle and Cancer

Which of the following is an example of internal regulation during the cell cycle?

• A gap from damaged tissue next to the cell triggers cell division

• A cell receives a signal from the cell nucleus to divide

• Tumor cells continue to divide without receiving signals to start cell division

• Human growth hormone is sent from the pituitary gland to the cell to undergo cell division

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NGSS.HS-LS1-3

A(n) ________________ is the most basic unit of life.

• Atom

• Cell

• Tissue

• Organ

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A sea otter has 38 chromosomes in their body (somatic) cells. When one somatic cell undergoes mitosis, how many chromosomes will a daughter cell have?

• 19

• 27

• 38

• 76

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What imortant cellular process occurs during the S phase of the cell cycle?

• The cell duplicated its DNA

• The cell lines it choromosomes up in the middle

• The cell pulls the chromosomes to either end for cell division

• The S phase is not a part of the cell cycle

Which of the following statements about stem cells is true?

• They are larger than regular somatic cells that can be used to absorb broken cells

• They are undifferentiated cells located in the brain stem

• They are undifferentiated cells that can turn into different cell types

• They are cells that grow uncontrollably

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NGSS.HS-LS1-4

_________________ is a critical point where stop and go signals can regulate the cell cycle.

• Metastasis

• Checkpoint

• Apoptosis

• Cancer

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Substances or radiation that is known to produce or promote cancer are called

• carcinogens

• kinases

• cyclins

• malignancies

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While in the womb, the webbed fingers of an embryo undergo programmed cell death, also known as ____________________.

• apoptosis

• cytokinesis

• carcinogen

• stem cells

What are the TWO purposes of meiosis? (SELECT TWO)

• genetic variation

• growth

• gamete formation

• repair

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NGSS.HS-LS3-2

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What are the TWO purposes of mitosis? (SELECT TWO)

• genetic variation

• growth

• gamete formation

• repair

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NGSS.HS-LS1-4