Essentials Biology Midterm- 2024

State one reason why a molecule may not be able to pass into or out of a cell.

• Molecule is too large

• Molecule is too small

• Molecule is too fast

• Molecule is too slow

What would be added to a cell that would cause it to shrink?

• Distilled water

• Blood cells

• Salt water

• Iodine

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All the biotic and abiotic factors in an environment is known as

• a population

• a community

• an ecosystem

• the hydrosphere

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Autotrophs differ from heterotrophs in that only autotrophs

• require carbon dioxide for cellular respiration

• release oxygen as a product of cellular respiration

• synthesize nutrients using carbon dioxide and water

• break down sugars to assemble other molecules

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Which factor would most likely cause an increase in the number of frogs?

• an increase in the number of deer

• a decrease in the amount of grasses

• an increase in the number of snakes

• a decrease in the amount of trees

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In an appropriately designed experiment, a scientist is able to test the effect of

• a single variable

• multiple variables

• the hypothesis

• scientific observations

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Which structure is responsible for the passage of materials into and out of the cell?

• Ribosomes

• Nucleus

• Cell Membrane

• Vacuoles

Which makes cell specimen a prokaryote?

• Lack of nucleus

• Two nuclei

• Lack of cell membrane

• Extra chromosomes

Which cell structures are correctly paired with their functions?

• The mitochondria produce enzymes, and ribosomes transport them.

• The ribosomes make proteins, and the nucleus stores genetic information.

• The cell membrane makes enzymes, and cytoplasm transports them.

• The vacuole stores genetic information, and chloroplasts make proteins.

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NGSS.MS-LS1-2

Which is the most responsible for recycling dead plants and animals in an ecosystem?

• water

• bacteria

• fish

• insects

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