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Biology Chapter 7 : Topic 1
Metabolism, Catabolism and Anabolism
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What is metabolism?
Reasoning: Metabolism includes all chemical reactions taking place in living organisms.
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Metabolism consists of:
Reasoning: Metabolism has two major components: catabolism and anabolism.
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What is catabolism?
Reasoning: Catabolism involves the degradation of large molecules into smaller ones.
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What is anabolism?
Reasoning: Anabolism builds complex molecules needed for growth and repair.
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Which process releases energy?
Reasoning: Catabolic reactions release energy when complex molecules are broken down.
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Which process requires energy?
Reasoning: Building complex molecules requires an input of energy.
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Digestion of starch into glucose is an example of:
Reasoning: A complex molecule is broken down into simpler molecules.
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Formation of proteins from amino acids is an example of:
Reasoning: Small molecules combine to form a larger molecule.
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Which statement best describes metabolism?
Reasoning: Metabolism includes both building and breaking reactions.
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Which of the following is a catabolic process?
Reasoning: Respiration breaks down glucose and releases energy.
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Photosynthesis is primarily an example of:
Reasoning: Plants build glucose from carbon dioxide and water.
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Which process contributes directly to growth of an organism?
Reasoning: Growth occurs through the synthesis of new cellular materials.
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During catabolism, complex molecules are converted into:
Reasoning: Catabolism breaks large molecules into smaller units.
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Which statement correctly compares catabolism and anabolism?
Reasoning: Energy released by catabolism is often used in anabolism.
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The synthesis of glycogen from glucose molecules is an example of:
Reasoning: Smaller glucose molecules combine to form a larger glycogen molecule.
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