Chapter 4 Cells and Energy Test A

What molecule carries chemical energy

that cells use for their functions?

• ADP

• ATP

• NAD+

• NADP+

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Which of the following molecules found

in the food we eat is most commonly

broken down to make ATP?

• carbohydrates

• lipids

• proteins

• vitamins

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Which of the following directly provides

the energy needed for cell functions?

• A phosphate group is removed from

  ATP.

• ADP loses a phosphate group.

• Electrons are passed to proteins.

• Oxygen picks up electrons.

Chemosynthesis is a process through

which some organisms use energy from

chemicals in their environment to build

sugars in the absence of

• ATP

• water

• glucose

• sunlight

The water molecules labeled A in Figure

4.1 are going to the thylakoids to take

part in which process?

• light-dependent reactions

• Krebs cycle

• Calvin cycle

• light-independent reactions

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Which of the following is a reactant in

photosynthesis?

• O2

• C6H12O6

• CO2

• COOH

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Where in plant cells are the

energy-absorbing molecules for

photosynthesis located?

• stoma

• thylakoids

• ATP synthase

• mitochondria

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What happens to the sugars that are

made during photosynthesis?

• They move directly into an electron

  transport chain.

• They go back into the Calvin cycle.

• They can be used for cellular

  respiration.

• They make ATP by bonding together.

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NGSS.HS-LS2-5

The part of cellular respiration that

needs oxygen takes place inside the

• nucleus

• mitochondria

• thylakoid

• cytoplasm

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NGSS.HS-LS2-3

Which process is best represented by the

following chemical equation?

sugars + oxygen → carbon dioxide +

water

• cellular respiration

• photosynthesis

• glycolysis

• fermentation

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