Ch6 Energy in the cell

What is metabolism?

• The process of breaking down food into waste

• The sum of all chemical reactions in a cell to provide energy

• The storage of energy in the form of fat

• The process of photosynthesis in plants

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Which of the following is an example of an anabolic process?

• Digestion

• Burning calories

• Bone growth

• Repairing cells

What is the primary source of energy for autotrophs?

• Other living organisms

• The sun

• Chemical reactions

• Stored fats

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What is the role of catabolism in metabolism?

• To build larger molecules from smaller ones

• To store energy in the form of fat

• To break down large molecules and release energy

• To increase muscle mass

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What must be maintained within cells for metabolism to work efficiently?

• High temperature

• Low temperature

• Homeostasis

• High energy intake

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Where does ATP stand for?

• Adenosine TriPhosphate

• Adenosine DiPhosphate

• Adenosine MonoPhosphate

• Adenosine TetraPhosphate

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Which part of the ATP molecule is responsible for storing and releasing energy?

• Adenine

• Ribose

• Phosphate group

• Hydrogen bond

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What happens to ATP when a cell needs energy?

• It combines with oxygen

• It breaks down into ADP

• It forms a new phosphate group

• It becomes glucose

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What is the process called when ATP reacts with water to release energy?

• Photosynthesis

• Glycolysis

• Hydrolysis

• cellular work

Explain how the source of energy for heterotrophs and autotrophs are different.

• Heterotrophs get their energy from the sun, while autotrophs get their energy from water.

• Heterotrophs get their energy from other organisms, while autotrophs get their food from the environment.

• Heterotrophs get their energy from the environment, while autotrophs get their energy from other organisms.

• Heterotrophs and autotrophs both get their energy from the same source.

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