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Biochemistry - MCQ Practice Questions

Practice free Biochemistry multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.

278 questions | 100% Free

Q.1Easy

Which of the following is a pentose sugar found in RNA?

Q.2Easy

Glycogen is primarily stored in which of the following tissues in humans?

Q.3Easy

What is the glycosidic linkage present in maltose?

Q.4Easy

Which enzyme catalyzes the conversion of glucose-6-phosphate to fructose-6-phosphate?

Q.5Easy

Sucrose is composed of which two monosaccharides?

Q.6Easy

Which carbohydrate classification includes both monosaccharides and oligosaccharides?

Q.7Easy

Which enzyme catalyzes the conversion of glucose-6-phosphate to fructose-6-phosphate in glycolysis?

Q.8Easy

What is the maximum number of ATP molecules generated from complete oxidation of one glucose molecule under aerobic conditions?

Q.9Easy

Which carbohydrate is a non-reducing sugar due to the glycosidic linkage between anomeric carbons of both monosaccharides?

Q.10Easy

In fructose metabolism, fructose is primarily phosphorylated by which enzyme in the liver?

Q.11Easy

Which of the following carbohydrates is a heptose?

Q.12Easy

In glycogen synthesis, which enzyme transfers glucose from UDP-glucose to the growing glycogen chain?

Q.13Easy

Which monosaccharide is the C2 epimer of glucose?

Q.14Easy

Which of the following is a ketohexose that is a structural isomer of glucose?

Q.15Easy

Which disaccharide is formed by α-1,4-glycosidic linkage between glucose molecules?

Q.16Easy

Which carbohydrate is a non-reducing sugar that cannot undergo mutarotation?

Q.17Easy

Which of the following carbohydrates is classified as a pentose sugar?

Q.18Easy

In glycolysis, the conversion of glucose-6-phosphate to fructose-6-phosphate is catalyzed by which enzyme?

Q.19Easy

Which enzyme is the rate-limiting step of glycolysis and is inhibited by ATP and citrate?

Q.20Easy

What is the net yield of ATP from the anaerobic metabolism of one molecule of glucose?