Unit Test — Unit test Answers

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Which stage of the cell cycle involves cell growth and DNA replication?

mitosis

cytokinesis

interphase

prophase

Which best describes what happens when a cell shrinks and shrivels due to osmosis?

Water molecules are too large to move across the cell membrane into the cell.

Water molecules move out of a cell from high concentration to low concentration.

Water molecules fill the inside of a cell and tighten the cell membrane.

Water molecules react with the cell membrane and cause it to break apart.

Examine the diagram of the cell cycle.

Anaphase: chromosomes thicken

Metaphase: chromosomes thicken

Anaphase: chromosomes are pulled apart

Metaphase: chromosomes are pulled apart

oxygenglucosesunlightcarbon dioxide

oxygen

glucose

sunlight

carbon dioxide

Examine the diagram of a cell.

mitochondrion

nucleus

ribosome

chloroplast

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