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Transport of Molecules in Plant

Transport of Molecules in Plant
The evaporation of water from leaves is called

pressure flow
tension
cohesion
transpiration

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Transport of Molecules in Plant
Water moves into roots of plants by

osmosis
diffusion
pressure flow mechanism
active transport

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Transport of Molecules in Plant
When guard cells swell

evaporation stops
stomata open
stomata close
photosynthesis stops

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Transport of Molecules in Plant
The cohesion-tension theory of water movement helps to explain how water moves from soil into root?

Through the xylem
From leaf to root
Into the guard cells
Through the phloem

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Transport of Molecules in Plant
Phloem is composed of

tracheids and vessel elements
sieve-tube elements and companion cells
vessel elements and companion cells
tracheids and sieve-tube elements

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Transport of Molecules in Plant
Normally CO2 and O2 enter a plant by

osmosis
diffusion
evaporation
active transport

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