TRANSPORT OF MOLECULES IN PLANT QUIZ

The movement of most minerals, including potassium into root cells is by

osmosis

diffusion

bulk flow

active transport

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When guard cells swell

photosynthesis stops

stomata close

stomata open

evaporation stops

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Normally CO2 and O2 enter a plant by

evaporation

osmosis

diffusion

active transport

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The evaporation of water from leaves is called

tension

transpiration

cohesion

pressure flow

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

From leaf to root

Into the guard cells

Through the phloem

Through the xylem

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

pressure flow hypothesis

root pressure theory

cytoplasmic streaming

transpiration

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Water moves into roots of plants by

pressure flow mechanism

osmosis

diffusion

active transport

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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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