TRANSPORT OF MOLECULES IN PLANT QUIZ

The evaporation of water from leaves is called

transpiration

tension

pressure flow

cohesion

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Water moves into roots of plants by

active transport

pressure flow mechanism

diffusion

osmosis

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When guard cells swell

stomata open

stomata close

evaporation stops

photosynthesis stops

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

diffusion

active transport

osmosis

bulk flow

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

transpiration

pressure flow hypothesis

root pressure theory

cytoplasmic streaming

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Phloem is composed of

sieve-tube elements and companion cells

tracheids and sieve-tube elements

vessel elements and companion cells

tracheids and vessel elements

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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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Normally CO2 and O2 enter a plant by

active transport

osmosis

diffusion

evaporation

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