AP Biology: Cell Structure & Function

Topic: AP Biology • Shared by team • 5 questions

Question 1

Which organelle is the primary site of ATP production in eukaryotic cells?

A Ribosome B Mitochondrion C Golgi apparatus D Lysosome

💡 Explanation

The mitochondrion is correct because it carries out cellular respiration, producing most of the cell's ATP.

Question 2

What molecule carries the genetic instructions used in growth and reproduction?

A DNA B ATP C Glucose D Cholesterol

💡 Explanation

DNA is correct because it stores the hereditary information that directs cellular activities.

Question 3

Which structure controls what enters and leaves the cell?

A Cell wall B Nucleus C Cell membrane D Vacuole

💡 Explanation

The cell membrane is correct because its selectively permeable phospholipid bilayer regulates transport.

Question 4

Photosynthesis primarily occurs in which organelle?

A Mitochondrion B Chloroplast C Nucleus D Ribosome

💡 Explanation

The chloroplast is correct because it contains chlorophyll and is the site of photosynthesis in plants.

Question 5

Ribosomes are responsible for which cellular process?

A Protein synthesis B Lipid storage C DNA replication D Waste removal

💡 Explanation

Protein synthesis is correct because ribosomes translate mRNA into chains of amino acids.

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