Overview of Metabolism: Interactive Learning Quizzes for Pharmacy Students

Question 1

Which characteristic distinguishes anabolic reactions?

Accepted Answer

Demand energy input

Answer

Generate ATP

Answer

Decompose complex molecules

Question 2

What is the main purpose of catabolism in metabolism?

Accepted Answer

To break down complex molecules into simpler ones and release energy

Answer

To create complex molecules from simpler ones

Question 3

Which of the following is not considered a primary type of metabolic reaction?

Accepted Answer

Replication

Answer

Catabolism

Answer

Anabolism

Answer

Signal transduction

Question 4

The molecule that serves as the primary energy currency for cells is:

Accepted Answer

ATP

Answer

ADP

Answer

NADH

Answer

FADH2

Question 5

The process by which cells construct new molecules from simpler building blocks is known as:

Accepted Answer

Anabolism

Answer

Catabolism

Answer

Gluconeogenesis

Answer

Glycolysis

Question 6

Which vitamin is essential for the proper functioning of the citric acid cycle?

Accepted Answer

Vitamin B1 (Thiamine)

Answer

Vitamin A

Answer

Vitamin C

Answer

Vitamin E

Question 7

Which molecule serves as the final electron acceptor in the electron transport chain?

Accepted Answer

Oxygen

Answer

NAD+

Answer

FADH2

Answer

Cytochrome a3

Question 8

Identify the process by which cells convert excess glucose into fat:

Accepted Answer

Lipogenesis

Answer

Gluconeogenesis

Answer

Glycogenolysis

Answer

Proteolysis

Question 9

Which hormone triggers the breakdown of glycogen stored in the liver?

Accepted Answer

Glucagon

Answer

Insulin

Answer

Adrenaline

Answer

Cortisol

Question 10

Which of the following processes releases energy from glucose?

Accepted Answer

Glycolysis

Answer

Gluconeogenesis is the process of synthesizing glucose from non-carbohydrate sources.

Answer

Glycogenolysis is the breakdown of glycogen to glucose.

Answer

Lipogenesis is the synthesis of lipids.

Question 11

Which coenzyme is involved in the transfer of electrons from glucose to oxygen?

Accepted Answer

NAD+ is the primary electron carrier in glycolysis.

Answer

FAD is also an electron carrier, but it is involved in the citric acid cycle.

Answer

Coenzyme A is involved in the transfer of acetyl groups, not electrons.

Answer

Thiamine pyrophosphate is a coenzyme for several enzymes involved in carbohydrate metabolism, but it is not directly involved in electron transfer.

Question 12

Which metabolic pathway generates ketone bodies?

Accepted Answer

Beta- oxidation is the metabolic pathway that generates ketone bodies.

Answer

The citric acid cycle does not generate ketone bodies.

Answer

Glycolysis does not generate ketone bodies.

Answer

The pentose phosphate pathway generates ribose-5-phosphate, not ketone bodies.

Question 13

What is the primary role of anabolic metabolism?

Accepted Answer

Anabolic metabolism is responsible for the synthesis of macromolecules.

Answer

Catabolic metabolism is responsible for the breakdown of molecules.

Answer

Energy storage is a function of catabolism, not anabolism.

Answer

Waste elimination is a function of excretion, not metabolism.

Question 14

Which vitamin plays a crucial role in the metabolism of carbohydrates?

Accepted Answer

Vitamin B1 (Thiamine) is a coenzyme for several enzymes involved in carbohydrate metabolism.

Answer

Vitamin A is essential for vision, not carbohydrate metabolism.

Answer

Vitamin C is essential for collagen synthesis, not carbohydrate metabolism.

Answer

Vitamin D is essential for calcium absorption, not carbohydrate metabolism.

Question 15

What is the final product of glycolysis?

Accepted Answer

Pyruvate is the final product of glycolysis.

Answer

Acetyl-CoA is the final product of the citric acid cycle.

Answer

Citrate is an intermediate in the citric acid cycle.

Answer

Oxaloacetate is an intermediate in the citric acid cycle.

Question 16

Which of the following is NOT a function of ATP?

Accepted Answer

ATP is not involved in hormone synthesis. Hormones are synthesized from cholesterol or amino acids.

Answer

ATP is the energy currency of the cell.

Answer

ATP is involved in signal transduction.

Answer

ATP is used for substrate phosphorylation.

Question 17

What is the process by which lipids are broken down to release energy?

Accepted Answer

Lipolysis is the breakdown of lipids.

Answer

Glycolysis is the breakdown of glucose, not lipids.

Answer

Lipogenesis is the synthesis of lipids, not the breakdown.

Answer

Gluconeogenesis is the synthesis of glucose from non-carbohydrate sources, not the breakdown of lipids.

Question 18

What is the role of coenzyme A in metabolism?

Accepted Answer

Acetyl group carrier is the correct role of coenzyme A.

Answer

Coenzyme A is not an electron carrier.

Answer

NADH regenerator is not a function of coenzyme A.

Answer

ATP synthase is an enzyme, not a coenzyme.

Question 19

Which of the following molecules serves as the universal energy currency of living cells?

Accepted Answer

ATP (Adenosine Triphosphate)

Answer

NADH (Nicotinamide Adenine Dinucleotide + Hydrogen)

Answer

ADP (Adenosine Diphosphate)

Answer

FADH2 (Flavin Adenine Dinucleotide + Hydrogen)

Question 20

What is the term for the metabolic processes that break down complex molecules into simpler ones, releasing energy?

Accepted Answer

Catabolism

Answer

Anabolism

Answer

Glycolysis

Answer

Gluconeogenesis

Question 21

Coenzymes are organic molecules that perform which of the following functions?

Accepted Answer

Assist enzymes in catalyzing biochemical reactions

Answer

Regulate gene expression

Answer

Provide the primary source of energy for metabolic processes

Answer

Act as substrates that are consumed in metabolic reactions

Question 22

Which vitamin is required for the activation of coenzyme A?

Accepted Answer

Pantothenic Acid (Vitamin B5)

Answer

Thiamine (Vitamin B1)

Answer

Ascorbic Acid (Vitamin C)

Answer

Riboflavin (Vitamin B2)

Question 23

Which of the following statements accurately describes the nature of metabolism?

Accepted Answer

Metabolism is a dynamic and tightly regulated process.

Answer

Metabolism is unaffected by external factors such as diet or exercise.

Answer

Metabolism exclusively occurs within the mitochondria of cells.

Answer

Metabolism is an irreversible series of reactions.

Question 24

What is the primary product generated during the glycolysis pathway?

Accepted Answer

Pyruvate

Answer

Citrate

Answer

Acetyl-CoA

Answer

Lactate

Question 25

Which molecule undergoes oxidation during the citric acid cycle?

Accepted Answer

Acetyl-CoA

Answer

NADH

Answer

Pyruvate

Answer

Glucose

Question 26

The pentose phosphate pathway is primarily responsible for generating which two important molecules?

Accepted Answer

NADPH and Ribose-5-Phosphate

Answer

ATP and FADH2

Answer

Acetyl-CoA and Citrate

Question 27

Which hormone is known to stimulate the breakdown of glycogen?

Accepted Answer

Epinephrine

Answer

Cortisol

Answer

Insulin

Answer

Somatotropin

Question 28

What is the primary objective of metabolism in living organisms?

Accepted Answer

To maintain homeostasis and provide energy for cellular processes

Answer

To synthesize new molecules exclusively

Answer

To eliminate waste products