MCQOPTIONS
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MCQOPTIONS
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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 6. |
Programmed cell death can be termed as ____________ |
| A. | Oxidative stress |
| B. | Apoptosis |
| C. | Cell division |
| D. | Cell cycle |
| Answer» C. Cell division | |
| 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. | |
| 8. |
What is the effect of the excessive rate of apoptosis? |
| A. | Atrophy |
| B. | Sneezing |
| C. | Fever |
| D. | AIDS |
| Answer» B. Sneezing | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 14. |
Programmed cell death can be termed as |
| A. | Oxidative stress |
| B. | Apoptosis |
| C. | Cell division |
| D. | Cell cycle |
| Answer» C. Cell division | |
| 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. | |
| 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 | |
| 17. |
What is the effect of excessive rate of apoptosis? |
| A. | Atrophy |
| B. | Sneezing |
| C. | Fever |
| D. | AIDS |
| Answer» B. Sneezing | |