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Transport of Molecules in Plant

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

active transport
diffusion
pressure flow mechanism
osmosis

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

cytoplasmic streaming
root pressure theory
pressure flow hypothesis
transpiration

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Transport of Molecules in Plant
Phloem is composed of

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

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

bulk flow
diffusion
osmosis
active transport

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Transport of Molecules in Plant
When guard cells swell

evaporation stops
photosynthesis stops
stomata open
stomata close

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

cohesion
transpiration
pressure flow
tension

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