GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
Transport of Molecules in Plant - Section 1 Multiple Questions and Answers.
| 1. | A widely accepted explanation for transport of sugar in phloem is called | ||
| A. | root pressure theory | ||
| B. | transpiration | ||
| C. | pressure flow hypothesis | ||
| D. | cytoplasmic streaming | ||
| 2. | Phloem is composed of | ||
| A. | vessel elements and companion cells | ||
| B. | tracheids and vessel elements | ||
| C. | sieve-tube elements and companion cells | ||
| D. | tracheids and sieve-tube elements | ||
| 3. | The movement of most minerals, including potassium into root cells is by | ||
| A. | osmosis | ||
| B. | diffusion | ||
| C. | bulk flow | ||
| D. | active transport | ||
| 4. | The evaporation of water from leaves is called | ||
| A. | transpiration | ||
| B. | cohesion | ||
| C. | tension | ||
| D. | pressure flow | ||
| 5. | Normally CO2 and O2 enter a plant by | ||
| A. | osmosis | ||
| B. | active transport | ||
| C. | diffusion | ||
| D. | evaporation | ||
Read More :
Quick Links
GAT Subject
Computer Science English Mcqs Agriculture
Engineering
Computer Science Civil Engineering
Technical
Networking Electronics Database
Past Papers
Model Papers FPSC Papers