Explore topic-wise MCQs in Cell Biology.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

C4 pathway uses 5 ATP molecules and 4 NADPH molecules as the energy source.

A. True
B. False
Answer» C.
2.

What is the chemical formula for oxaloacetic acid?

A. C<sub>4</sub>H<sub>3</sub>O<sub>5</sub>
B. C<sub>4</sub>H<sub>4</sub>O<sub>5</sub>
C. C<sub>4</sub>H<sub>4</sub>O<sub>6</sub>
D. C<sub>3</sub>H<sub>4</sub>O<sub>5</sub>
Answer» C. C<sub>4</sub>H<sub>4</sub>O<sub>6</sub>
3.

Which enzyme plays the role of a catalyst in CO2 fixation in C4 plants?

A. Carbonic mutase
B. Carbonic reductase
C. Carbonic anhydrase
D. Carbonic dehydrogenase
Answer» D. Carbonic dehydrogenase
4.

The total carbon dioxide fixation done by the C4 plants is _________

A. 3%
B. 13%
C. 23%
D. 33%
Answer» D. 33%
5.

The C4 plants grow in the cold climate places.

A. True
B. False
Answer» C.
6.

Where does the C4 pathway take place?

A. Bundle sheath
B. Xylem
C. Mesophylls
D. Phloem
Answer» D. Phloem
7.

What is the final product of the C4 cycle?

A. Aspartate
B. Malate
C. Oxalate
D. Acetate
Answer» C. Oxalate
8.

Which of the following is an example of C4 plants?

A. Sugarcane
B. Wheat
C. Rice
D. Cactus
Answer» B. Wheat
9.

Which of the following leaf anatomy is a characterization of C4 plants?

A. Piezo anatomy
B. Norman anatomy
C. Kranz anatomy
D. Richard anatomy
Answer» D. Richard anatomy
10.

What is the enzyme used in the conversion of pyruvate to phosphoenolpyruvate?

A. Pyruvate monophosphate dikinase
B. Pyruvate orthophosphate dikinase
C. Pyruvate monophosphate reductase
D. Pyruvate orthophosphate reductase
Answer» C. Pyruvate monophosphate reductase
11.

Who discovered C4 cycle?

A. Hatch and Slack
B. Kolliker
C. Robert Brown
D. Rudolph Markus
Answer» B. Kolliker