Cytology Exam

The nucleus is the cell as

• the muscles are to a human

• the bones are to a human

• the brain is to a human

• the heart is to human

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NGSS.MS-LS1-2

In single-celled organisms, materials are stored primarily in

• ribosomes

• vacuoles

• mitochondria

• nuclei

What would most likely happen if the ribosomes in a cell were not functioning?

• The cell would produce antibodies.

• The synthesis of enzymes would stop.

• The rate of transport of glucose in the cytoplasm would increase.

• The cell would undergo uncontrolled mitotic cell division.

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NGSS.HS-LS1-1

Scientists who study rock formations in caves describe some of the formations as "living rock" because, under certain conditions, they increase in size. Which statement would best dispute the claim that these rock formations are living?

• Rocks perform complex metabolic processes, but cannot grow.

• Rocks cannot reproduce sexually.

• Rocks remain stable in a wide range of physical conditions.

• Rocks are not composed of cells, while living organisms are.

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NGSS.MS-LS1-1

The removal of mitochondria from a typical animal cell would have an immediate effect on the cell's production of

• oxygen

• DNA

• ATP

• glucose

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NGSS.HS-LS1-7

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One difference between plant and animal cells is that animal cells do not have

• centrioles

• a nucleus

• chloroplasts

• a cell membrane

In a multicellular organism, organs carry out a variety of life functions. In a single-celled organism, these functions are performed by

• A) organs

• B) tissues

• C) organelles

• D) organ systems

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NGSS.MS-LS1-2

If the ribosomes of a cell were destroyed, what effect would this most likely have on the cell?

• Development of abnormal hereditary features would occur in the cell.

• Increased protein absorption would occur through the cell membrane.

• The cell would be unable to synthesize proteins.

• It would stimulate mitotic cell division.

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NGSS.MS-LS1-2

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Which statement concerning the functioning of cells is correct?

• Mitochondria transfer energy from organic compounds to form ATP molecules.

• The nucleus stores genes that will later be removed from the cell.

• Vacuoles are the sites of DNA synthesis.

• The cell membrane prevents the diffusion of all poisons into a cell from its environment.

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NGSS.MS-LS1-2

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All of the following are true regarding cells except?

• A) All cells have plasma membranes

• B) All cells have cell walls

• C) All cells have genetic material

• D) All cells can divide to form new cells

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NGSS.MS-LS1-1