DP14 Quiz

What is a coenzyme?

• A type of protein that speeds up chemical reactions

• A non-protein compound that is necessary for the functioning of an enzyme

• A molecule that stores genetic information

• A type of lipid that forms cell membranes

Which of the following is an example of a coenzyme?

• Glucose

• ATP

• NAD+

• DNA

How are coenzymes typically involved in reactions?

• They are permanently bound to enzymes

• They are consumed in the reaction

• They are temporarily bound and can be reused

• They are not involved in reactions

What does it mean for coenzymes to be cyclic?

• They are used once and then discarded

• They are continuously regenerated and reused in metabolic pathways

• They form a permanent part of the enzyme structure

• They are only used in photosynthesis

Which of the following reactions is catabolic in nature?

• Synthesis of proteins from amino acids

• Breakdown of glucose during glycolysis

• Formation of DNA from nucleotides

• Photosynthesis

Which of the following reactions is anabolic in nature?

• Glycolysis

• Krebs cycle

• Photosynthesis

• Fermentation

Which coenzyme is primarily involved in photosynthesis?

• NADH

• FADH2

• NADP+

• Coenzyme A

Which coenzyme is primarily involved in cellular respiration?

• NADP+

• NAD+

• Coenzyme Q

• ATP

What role do coenzymes play in catabolic reactions?

• They provide energy for the reaction

• They act as electron carriers

• They form the main substrate of the reaction

• They inhibit the reaction

What role do coenzymes play in anabolic reactions?

• They break down complex molecules

• They provide the energy required for synthesis

• They act as inhibitors

• They are not involved in anabolic reactions