Chapter 23 Quiz

What is metabolism defined as in a biological context?

• The breakdown of nutrients within the body to generate heat.

• The sum total of all chemical reactions in a living organism.

• The process by which organisms respond to stimuli in their environment.

• The transfer of genetic information from DNA to RNA.

Which of the following is NOT a function of metabolism?

• Source of energy for the functioning of the human body.

• Facilitating the movement of muscles.

• Protein synthesis.

• DNA replication.

Metabolism is necessary for which of the following cellular processes?

• Protein synthesis, DNA replication, RNA transcription, and membrane transport.

• Hormone secretion, neural signaling, and waste elimination.

• Blood clotting, immune response, and vitamin absorption.

• Muscle contraction, bone growth, and adipose storage.

What is catabolism in metabolic reactions?

• The process where small biochemical molecules are joined to form larger ones.

• The process where large biochemical molecules are broken down into smaller ones.

• The synthesis of proteins from amino acids.

• The breakdown of proteins into amino acids.

What usually happens during catabolic reactions?

• Energy is consumed.

• Energy is stored.

• Energy is released.

• No change in energy.

Which of the following is an example of anabolism?

• Oxidation of glucose.

• Synthesis of proteins.

• Breakdown of carbohydrates.

• Decomposition of lipids.

What is typically required for anabolic reactions to occur?

• Release of energy.

• Absorption of light.

• Consumption of energy.

• Generation of heat.

What is a metabolic pathway?

• A series of consecutive biochemical reactions used to convert a starting material into an end product

• A single biochemical reaction that does not alter the starting material

• A biological process that eliminates waste products from the body

• A type of cellular structure that stores energy

How many types of metabolic pathways are mentioned in the text?

• One

• Two

• Three

• Four

Which of the following is NOT a type of metabolic pathway described in the text?

• Linear

• Cyclic

• Static

• Dynamic