Explore topic-wise MCQs in Biochemistry.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

Identify the products formed in the following reaction.

A. CH3 COOH and CH3OH
B. CH3 COOOH and CH4
C. CO2 and C2H6
D. No reactionView Answer
Answer» B. CH3 COOOH and CH4
Discussion
2.

Which among the following statements is true about the following chemical reaction?

A. Iron metal is getting reduced
B. Water is acting as a reducing agent
C. Water is acting as an oxidizing agent
D. Water is getting oxidizedView Answer
Answer» D. Water is getting oxidizedView Answer
Discussion
3.

What does it mean when we say that water acts as a “heat buffer”?

A. It keeps the temperature of an organism relatively constant as the temperature of the surroundings fluctuates
B. It increases the temperature of an organism as the temperature of the surroundings increases
C. It decreases the temperature of an organism as the temperature of the surroundings increases
D. It increases the temperature of an organism as the temperature of the surroundings decreases
Answer» B. It increases the temperature of an organism as the temperature of the surroundings increases
Discussion
4.

Hydrolysis reactions are catalyzed by enzymes called ___________

A. Oxidoreductase
B. Ligase
C. Hydrolase
D. Isomerase
Answer» D. Isomerase
Discussion
5.

Consider the following reaction, in the presence of light Which of the following statements is true?

A. X is electron-accepting specie
B. X is electron-donating specie
C. Water is an electron acceptor
D. Water neither donates nor accepts any electronView Answer
Answer» B. X is electron-donating specie
Discussion
6.

The processes i and ii are respectively.

A. Hydration and dehydration
B. Hydration and hydrolysis
C. Hydrolysis and hydrolysis
D. Hydration and hydrationView Answer
Answer» C. Hydrolysis and hydrolysis
Discussion
7.

WHICH_AMONG_THE_FOLLOWING_STATEMENTS_IS_TRUE_ABOUT_THE_FOLLOWING_CHEMICAL_REACTION??$

A. + 4H<sub>2</sub> O ‚Üí Fe<sub>3</sub> O<sub>4</sub> (s) + 4H<sub>2</sub>
B. Iron metal is getting reduced.
C. Water is acting as a reducing agent
D. Water is acting as an oxidizing agent
Answer» D. Water is acting as an oxidizing agent
Discussion
8.

Identify_the_products_formed_in_the_following_reaction$

A.
B. CH<sub>3</sub> COOH and CH<sub>3</sub> OH
C. CH<sub>3</sub> COOOH and CH<sub>4</sub>
Answer» B. CH<sub>3</sub> COOH and CH<sub>3</sub> OH
Discussion
9.

What trend does the reactivity of group II elements follow with water?

A. Increases down the group
B. Decreases down the group
C. Does not follow any particular trend
D. No reaction
Answer» B. Decreases down the group
Discussion
10.

Which of the following does not react with water?

A. Barium
B. Calcium
C. Beryllium
D. Strontium
Answer» D. Strontium
Discussion
11.

What does it mean when we say that water acts as a “heat buffer”?$

A. It keeps the temperature of an organism relatively constant as the temperature of the surroundings fluctuates.
B. It increases the temperature of an organism as the temperature of the surroundings increases
C. It decreases the temperature of an organism as the temperature of the surroundings increases
D. It increases the temperature of an organism as the temperature of the surroundings decreases
Answer» B. It increases the temperature of an organism as the temperature of the surroundings increases
Discussion
12.

Hydrolysis reactions are catalyzed by enzymes called

A. Oxidoreductase
B. Ligase
C. Hydrolase
D. Isomerase
Answer» D. Isomerase
Discussion
13.

Consider the following reaction, in the presence of light

A.
B.
Answer» B.
Discussion
14.

Which of the following is the correct equation?

A. CO<sub>2</sub> + H<sub>2</sub> O H<sub>2</sub> CO<sub>3</sub>
B. CO<sub>2</sub> + H<sub>2</sub> O HCO<sub>3</sub>
C. CO<sub>2</sub> + H<sub>2</sub> O H<sub>3</sub> CO<sub>3</sub>
D. CO<sub>2</sub> + H<sub>2</sub> O H<sub>2</sub> CO<sub>2</sub>
Answer» B. CO<sub>2</sub> + H<sub>2</sub> O HCO<sub>3</sub>
Discussion
15.

Which of the following is not a condensation reaction?

A. ADP + inorganic phosphate ATP + H2O
B. R-OH + inorganic phosphate phosphate ester + H<sub>2</sub> O
C. R-COOH + inorganic phosphate Acyl phosphate + H<sub>2</sub> O
D. 6CO<sub>2</sub> + 6 H<sub>2</sub> O C<sub>6</sub> H<sub>12</sub> O<sub>6</sub> + 6CO<sub>2</sub>
Answer» E.
Discussion
16.

A) CuSO4 + 5H2 O CuSO4.5H2 O

A. PCl<sub>3</sub> + 3H<sub>2</sub> O H<sub>3</sub> PO<sub>3</sub> + 3HCl
B.
C. Hydration and dehydration
Answer» C. Hydration and dehydration
Discussion