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Transport of Molecules in Plant - Section 1 Multiple Questions and Answers.
| 6. | The cohesion-tension theory of water movement helps to explain how water moves from soil into root? | ||
| A. | Through the phloem | ||
| B. | From leaf to root | ||
| C. | Through the xylem | ||
| D. | Into the guard cells | ||
| 7. | When guard cells swell | ||
| A. | stomata close | ||
| B. | stomata open | ||
| C. | photosynthesis stops | ||
| D. | evaporation stops | ||
| 8. | Water moves into roots of plants by | ||
| A. | osmosis | ||
| B. | active transport | ||
| C. | diffusion | ||
| D. | pressure flow mechanism | ||
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