Explore topic-wise MCQs in Biochemistry.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following group of plants contains agranal chloroplast?

A. C3 plants
B. C4 plants
C. C2 plants
D. C1 plants
Answer» C. C2 plants
Discussion
2.

The light reaction of photosynthesis takes place in ____________

A. Inner membrane of chloroplast
B. Outer membrane of chloroplast
C. Stroma
D. Matrix
Answer» B. Outer membrane of chloroplast
Discussion
3.

Which is the first stable product of the dark reaction in C4 plants?

A. Phosphoglyceric acid
B. Oxaloacetic acid
C. Glycolic acid
D. Malic acid
Answer» B. Oxaloacetic acid
Discussion
4.

Which one of the following is true about C3 plants?

A. First stable product is phosphoglyceric acid
B. Photosynthetically more efficient
C. More efficient in CO2 fixation than C4 plants
D. None of the mentioned
Answer» B. Photosynthetically more efficient
Discussion
5.

Which one of the following is true about C4 plants?

A. They minimize rubisco oxygenase activity by fixing CO2 into oxaloacetate
B. They mainly occur in areas of high temperature and light intensity
C. They minimize the rubisco oxygenase activity by fixing CO2 into phosphoenolpyruvic acid
D. C3 plants are more efficient in photosynthesis than C4 plants
Answer» B. They mainly occur in areas of high temperature and light intensity
Discussion
6.

Programmed cell death can be termed as ____________

A. Oxidative stress
B. Apoptosis
C. Cell division
D. Cell cycle
Answer» C. Cell division
Discussion
7.

Oxidative stress (in humans) is not involved in the development of ____________

A. Cancer
B. Parkinson’s disease
C. Heart failure
D. Kidney failure
Answer» E.
Discussion
8.

What is the effect of the excessive rate of apoptosis?

A. Atrophy
B. Sneezing
C. Fever
D. AIDS
Answer» B. Sneezing
Discussion
9.

THE_LIGHT_REACTION_OF_PHOTOSYNTHESIS_TAKES_PLACE_IN?$

A. Inner membrane of chloroplast
B. Outer membrane of chloroplast
C. Stroma
D. Matrix
Answer» B. Outer membrane of chloroplast
Discussion
10.

Which of the following group of plants contains agranal chloroplast?$

A. C<sub>3</sub> plants
B. C<sub>4</sub> plants
C. C<sub>2</sub> plants
D. C<sub>1</sub> plants
Answer» C. C<sub>2</sub> plants
Discussion
11.

Which of the following is the distinguishable feature of cyclic photophosphorylation?

A. Phosphorylation only takes place
B. Phosphorylation and photolysis take place
C. Photolysis of water is taking place
D. None
Answer» B. Phosphorylation and photolysis take place
Discussion
12.

The first stable product of dark reaction in C4 plants is

A. Phosphoglyceric acid
B. Oxaloacetic acid
C. Glycolic acid
D. Malic acid
Answer» B. Oxaloacetic acid
Discussion
13.

Which one of the following is true about C4 plants?

A. They minimize rubisco oxygenase activity by fixing CO<sub>2</sub> into oxaloacetate
B. They mainly occur in areas of high temperature and light intensity
C. They minimize the rubisco oxygenase activity by fixing CO<sub>2</sub> into phosphoenolpyruvic acid
D. C<sub>3</sub> plants are more efficient in photosynthesis than C<sub>4</sub> plants
Answer» B. They mainly occur in areas of high temperature and light intensity
Discussion
14.

Programmed cell death can be termed as

A. Oxidative stress
B. Apoptosis
C. Cell division
D. Cell cycle
Answer» C. Cell division
Discussion
15.

Oxidative stress (in humans) is not involved in the development of

A. Cancer
B. Parkinson’s disease
C. Heart failure
D. Kidney failure
Answer» E.
Discussion
16.

What is the rate of apoptosis in average human adult per day?

A. 10 billion cells
B. 30 billion cells
C. 50-70 billion cells
D. 100 billion cells
Answer» D. 100 billion cells
Discussion
17.

What is the effect of excessive rate of apoptosis?

A. Atrophy
B. Sneezing
C. Fever
D. AIDS
Answer» B. Sneezing
Discussion