MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following class of enzyme does not need manganese for its efficient activity? |
| A. | Dehydrogenase |
| B. | Decarboxylases |
| C. | Kinases |
| D. | Nitrogenase |
| Answer» E. | |
| 2. |
Which of the following is deficiency symptom of magnesium? |
| A. | Chlorosis in young leaves |
| B. | Chlorosis in older leaves |
| C. | Spindly and woody stem |
| D. | Elongated stem |
| Answer» C. Spindly and woody stem | |
| 3. |
WHICH_OF_THE_FOLLOWING_IS_DEFICIENCY_SYMPTOM_OF_MAGNESIUM??$ |
| A. | Chlorosis in young leaves |
| B. | Chlorosis in older leaves |
| C. | Spindly and woody stem |
| D. | Elongated stem |
| Answer» C. Spindly and woody stem | |
| 4. |
Which_of_the_following_class_of_enzyme_does_not_need_manganese_for_its_efficient_activity?$ |
| A. | Dehydrogenase |
| B. | Decarboxylases |
| C. | Kinases |
| D. | Nitrogenase |
| Answer» E. | |
| 5. |
Deficiency of which mineral causes dark green coloration of the leaves? |
| A. | Phosphorus |
| B. | Potassium |
| C. | Nitrogen |
| D. | Calcium |
| Answer» B. Potassium | |
| 6. |
Name the mineral element which is required by a plant in a great amount? |
| A. | Calcium |
| B. | Cobalt |
| C. | Phosphorus |
| D. | Nitrogen |
| Answer» E. | |
| 7. |
Which of the following element is needed by plants in a very small quantity? |
| A. | Phosphorus |
| B. | Carbon |
| C. | Sodium |
| D. | Magnesium |
| Answer» D. Magnesium | |
| 8. |
Which of the following is a mineral nutrient? |
| A. | Carbon |
| B. | Nitrogen |
| C. | Hydrogen |
| D. | Oxygen |
| Answer» C. Hydrogen | |
| 9. |
Name the technique which involves the growth of a plant by suspending their roots in the air? |
| A. | Diffusion |
| B. | Osmosis |
| C. | Hydroponics |
| D. | Aeroponics |
| Answer» E. | |
| 10. |
Who proposed the idea of essential mineral nutrients of the plant? |
| A. | Leonhart Fuchs |
| B. | Aristotle |
| C. | Arnon and Stout |
| D. | Carl Linnaeus |
| Answer» D. Carl Linnaeus | |
| 11. |
Which one of the following is NOT a criteria for an element to be called as essential? |
| A. | These elements need not to take part in growth and development |
| B. | The function of an element must not be replaceable |
| C. | The element should be involved in plant metabolism |
| D. | A plant cannot complete its life cycle without these elements |
| Answer» B. The function of an element must not be replaceable | |
| 12. |
Those elements whose absence prevent plants from completing its life cycle are called___________ |
| A. | Micro element |
| B. | Macro element |
| C. | Nonessential elements |
| D. | Essential elements |
| Answer» E. | |