Q. No.Transpiration
1. Loss of water in soil
2. Loss of minerals in soil
3. Loss of water to the air from the leaves
4. Loss of organic substances because of photorespiration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTranspiration is very important for plants because it helps in
1. the absorption of water from soil
2. the cooling of leaves at high temperature
3. the movement of water and minerals absorbed by roots to various parts of the plant
4. all of the above
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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 & BiologyLoss of water in liquid phase from the margin of leaves in many herbaceous plants is/occurs
1. Guttation
2. Transpiration
3. At noon
4. Due to cohesion-tension model of water movement.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTranspiration is affected by internal factors
Find the wrong one
(1) Number of stomata
(2) Water status of plant
(3) Percent of open stomata
(4) Wind speed
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStomata opens:
(1) in day time - for gaseous exchange
(2) in day time - no gaseous exchange
(3) in night time only - for gaseous exchange
(4) in night time only - no gaseous exchange
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat percent of water reaching them is used by leaves in photosynthesis?
1. Less than 1%
2. About 5 %
3. About 5 % in warm conditions and about 10 % in cold conditions
4. About 50 %
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTranspiration is affected by external factors
Find the wrong one.
(1) Temperature, Light
(2) Humidity
(3) Wind Speed
(4) Canopy structure
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTranspiration can be studied by
(1) Cobalt chloride paper test
(2) Chromium chloride paper test
(3) Leaf enclosed in polybag
(4) Both A and C
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRoot pressure
(1) Pushing pressure
(2) Negative pressure
(3) Tries to cope up with water requirement of well heighted plants
(4) Effects are observed at day time and evening time
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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