Quiz on Metabolism

What is metabolism?

• The breakdown of food in the stomach

• The sum of all life-sustaining chemical reactions within the cells of living organisms

• The process of photosynthesis

• The process of breathing

What are the three main categories of metabolism?

• Anabolism, Catabolism, Metabolism

• Photosynthesis, Respiration, Digestion

• Carbohydrates, Proteins, Fats

• Energy, Building Blocks, Chemical Reactions

What role do enzymes play in metabolism?

• They help speed up chemical reactions

• They are not involved in metabolism

• They are used only in digestion

• They slow down chemical reactions

What is a substrate in the context of enzymes?

• The enzyme itself

• The product of an enzymatic reaction

• The molecules upon which enzymes act

• A type of protein

What happens if an enzyme is denatured?

• It becomes a substrate

• It speeds up the reaction

• It changes shape and does not function correctly

• It becomes more efficient

What is an example of a catabolic pathway?

• Photosynthesis

• Cellular respiration

• Protein synthesis

• DNA replication

What is the primary function of catabolic pathways?

• To release energy by breaking down complex molecules

• To synthesize proteins

• To build complex molecules

• To store energy

What is an example of an anabolic pathway?

• The digestion of food

• Cellular respiration

• The synthesis of protein from amino acids

• The breakdown of glucose

What is bioenergetics?

• The synthesis of DNA

• The process of breathing

• The study of energy flow through living systems

• The breakdown of food in the stomach

What is the role of enzymes in chemical reactions?

• They are not involved in chemical reactions

• They convert substrates into different molecules known as products

• They are the final products of reactions

• They act as substrates