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Transport of Molecules in Plant

Transport of Molecules in Plant
When guard cells swell

stomata open
stomata close
photosynthesis stops
evaporation stops

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Transport of Molecules in Plant
The movement of most minerals, including potassium into root cells is by

bulk flow
osmosis
diffusion
active transport

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

pressure flow hypothesis
cytoplasmic streaming
transpiration
root pressure theory

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

active transport
pressure flow mechanism
osmosis
diffusion

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

active transport
osmosis
diffusion
evaporation

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Transport of Molecules in Plant
Phloem is composed of

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

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