MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Water entering roots through diffusion is a ____________ |
| A. | endosmosis |
| B. | osmosis |
| C. | passive absorption |
| D. | active absorption |
| Answer» D. active absorption | |
| 2. |
Root system in a plant develops well when __________ |
| A. | deficiency of copper |
| B. | absorption of water increases |
| C. | deficiency of auxin |
| D. | deficiency of ABA |
| Answer» C. deficiency of auxin | |
| 3. |
Plants lose water mainly by the process of _____ |
| A. | Guttation |
| B. | Exudation |
| C. | Transpiration |
| D. | Evaporation |
| Answer» D. Evaporation | |
| 4. |
The theory proposed to explain the mechanism of stomatal movement? |
| A. | The starch-sugar interconversion theory |
| B. | Theory of photosynthesis in guard cell |
| C. | Theory of glycolate metabolism |
| D. | Active potassium transport ion concept |
| Answer» B. Theory of photosynthesis in guard cell | |
| 5. |
Who is the Father of Plant Physiology? |
| A. | Stephan Hales |
| B. | Schwendener |
| C. | Melvin Calvin |
| D. | Lipmann |
| Answer» D. Lipmann | |
| 6. |
Minerals are re-exported by __________ |
| A. | leaves |
| B. | stems |
| C. | branches |
| D. | roots |
| Answer» B. stems | |
| 7. |
Mineral Nutrients are taken up by ________ |
| A. | leaves |
| B. | stems |
| C. | branches |
| D. | roots |
| Answer» E. | |
| 8. |
Cytoplasmic streaming is a form of active transport for short distances. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which kind of transport is present in xylem? |
| A. | No transport |
| B. | Unidirectional |
| C. | Bidirectional |
| D. | Multidirectional |
| Answer» C. Bidirectional | |
| 10. |
Vascular bundle is composed of _________ |
| A. | xylem |
| B. | phloem |
| C. | both xylem and phloem |
| D. | cambium |
| Answer» D. cambium | |