OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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B1.3.2 By which process does water move into the roots of a plant?
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Facilitated diffusion
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Diffusion
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Active transport
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Osmosis
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Explanation:
Detailed explanation-1: -Explanation: Water enters the root hairs by the process of osmosis.
Detailed explanation-2: -Water moves into the roots from the soil by osmosis, due to the low solute potential in the roots (lower s in roots than in soil).
Detailed explanation-3: -In plants, water enters the root cells by osmosis and moves into tubes called xylem vessels to be transported to the leaves. Water molecules inside the xylem cells are strongly attracted to each other because of hydrogen bonding (this is called cohesion).
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