Explore topic-wise MCQs in Biochemistry.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

The percentage of light energy fixed in photosynthesis is around ____________

A. 100%
B. 10%
C. 1%
D. 0.1%
Answer» D. 0.1%
2.

Who is the first person to study the influence of light during photosynthesis?

A. Blackmann
B. Van Niel
C. J. Ingenhouz
D. Warburg
Answer» D. Warburg
3.

Photosynthesis can be described as ____________

A. Reductive, anabolic, endergonic process
B. Reductive, anabolic, exergonic process
C. Oxidative, anabolic, endergonic process
D. Oxidative, catabolic, exergonic process
Answer» B. Reductive, anabolic, exergonic process
4.

Light energy is converted to chemical energy in the presence of ____________

A. Chloroplast
B. Ribosomes
C. Mitochondria
D. Stomata
Answer» B. Ribosomes
5.

Calvin cycle occurs in ____________

A. Cytoplasm
B. Chloroplast
C. Mitochondria
D. Golgi body
Answer» B. Chloroplast
6.

Hydrogen is transferred from the light reaction to the dark reaction in photosynthesis by _____________

A. DPN
B. NAD
C. ATP
D. NADP
Answer» B. NAD
7.

What are the favorable conditions for cyclic photophosphorylation?

A. Aerobic and optimum light
B. Aerobic condition only
C. Aerobic and low light intensity
D. Anaerobic and low light intensity
Answer» B. Aerobic condition only
8.

Which one of the following is the source of electrons in photosynthesis?

A. Carbohydrates
B. CO<sub>2</sub>
C. Water
D. NADH
Answer» D. NADH