Biochemistry - MCQ Practice Questions

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

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

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

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

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

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

Which of the following is a reducing sugar?

Which of the following carbohydrates is a ketohexose?

The disaccharide formed by α-glucose and β-fructose joined by α-1,2-glycosidic bond is:

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

The optical rotation of freshly prepared glucose solution gradually decreases and reaches equilibrium. This phenomenon is called:

Which of the following carbohydrates does NOT undergo glycolysis?

Which of the following is NOT a component of a triglyceride molecule?

What is the primary function of HDL cholesterol in the body?

Omega-3 fatty acids are beneficial for human health because they:

Which lipid type is essential for maintaining the structural integrity of cell membranes?

What is the difference between saturated and unsaturated fatty acids in terms of their chemical structure?

Which of the following lipids is NOT a structural component of cell membranes?

The rate-limiting enzyme in de novo fatty acid synthesis is:

Beta-oxidation of fatty acids occurs primarily in which cellular compartment?