AP Biology Unit 2

What is the primary function of the light reactions of photosynthesis?

• To produce glucose

• To produce NADPH and ATP

• To use ATP

• To produce RuBP

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NGSS.HS-LS1-5

What supplies the electrons that are lost in PS I?

• the electrons from PS II

• water

• glucose

• oxygen

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NGSS.HS-LS1-5

What is the function of NADP+?

• It absorbs light

• It is an electron carrier

• It is a light-reflecting pigment

• It acts as long-term energy storage

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NGSS.HS-LS2-5

Which of the following molecules is not needed for the Calvin Cycle?

• CO₂

• ATP

• NADPH

• H₂O

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NGSS.HS-LS1-5

Which of the following best describes the function of the nucleolus within the nucleus?

• It stores DNA.

• It synthesizes ribosomal RNA.

• It regulates cell division.

• It modifies proteins.

Explain how the structure of the cell membrane contributes to its function.

• The rigid structure provides support and protection.

• The fluid mosaic model allows selective permeability.

• The thick layer prevents all substances from entering.

• The solid structure allows for easy transport of materials.

Describe the role of ribosomes in a cell.

• They store genetic information.

• They synthesize proteins.

• They break down waste materials.

• They transport substances across the cell membrane.

Which organelle is responsible for modifying, sorting, and packaging proteins for secretion?

• Ribosome

• Golgi apparatus

• Endoplasmic reticulum

• Lysosome

What is the primary function of the mitochondria in eukaryotic cells?

• Photosynthesis

• Protein synthesis

• Energy production

• Lipid storage

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NGSS.HS-LS1-7

A cell is observed to have a large number of lysosomes. What might this indicate about the cell's function?

• It is involved in energy production.

• It is involved in protein synthesis.

• It is involved in waste processing and recycling.

• It is involved in lipid storage.

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NGSS.HS-LS2-3