Explore topic-wise MCQs in Biochemistry Questions and Answers.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

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
2.

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
3.

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