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Q. No.Root pressure develops due to?
1. Active absorption
2. Low osmotic potential in Soil
3. Passive absorption
4. Increase in transpiration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA column of water within xylem vessels of tall trees does not break under its weight because of?
1. Dissolved sugar in water
2. Tensile strength of water
3. Lignification of xylem vessels
4. Positive root pressure
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTranspiration and root pressure cause water to rise in plants by:
2. pulling and pushing it, respectively
3. pushing it upward
4. pushing and pulling it, respectively
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn a ring-girdled plant:
2. the root dies first
3. the shoot and root die together
4. Neither root nor shoot will die
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology2. Potassium influx and efflux
3. Starch hydrolysis
4. Guard cell photosynthesis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is correctly matched?
1. Passive transport of nutrients-ATP
2. Apoplast- Plasmodesmata
3. Potassium- Readily mobilized
4. Bakanae of rice seedlings-F Skoog
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | Calcium | 2. | Potassium |
| 3. | Sulphur | 4. | Phosphorus |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGuttation is the result of:
1. Root pressure
2. Diffusion
3. Transpiration
4. Osmosis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFunction of companion cells is:
| 1. | Loading of sucrose into sieve elements |
| 2. | Providing energy to sieve elements for active transport |
| 3. | Providing water to phloem |
| 4. | Loading of sucrose into sieve elements by passive transport |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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