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Transport of Molecules in Plant

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
A widely accepted explanation for transport of sugar in phloem is called

root pressure theory
pressure flow hypothesis
cytoplasmic streaming
transpiration

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

transpiration
pressure flow
cohesion
tension

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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?

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

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

active transport
evaporation
osmosis
diffusion

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Transport of Molecules in Plant
When guard cells swell

stomata close
stomata open
photosynthesis stops
evaporation stops

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