TRANSPORT OF MOLECULES IN PLANT QUIZ

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

diffusion

bulk flow

active transport

osmosis

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Phloem is composed of

tracheids and vessel elements

tracheids and sieve-tube elements

vessel elements and companion cells

sieve-tube elements and companion cells

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Water moves into roots of plants by

pressure flow mechanism

osmosis

active transport

diffusion

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

Through the xylem

Through the phloem

From leaf to root

Into the guard cells

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The evaporation of water from leaves is called

cohesion

tension

pressure flow

transpiration

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

cytoplasmic streaming

transpiration

root pressure theory

pressure flow hypothesis

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When guard cells swell

stomata close

stomata open

photosynthesis stops

evaporation stops

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Normally CO2 and O2 enter a plant by

diffusion

evaporation

osmosis

active transport

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