What is one main difference between water transport by xylem in plants and transport by blood in humans?
Answer and explanation
Correct answer: Blood is pumped while transpiration pull is important in xylem
Human blood circulation is driven primarily by the muscular heart, which creates pressure to move blood through vessels. In plants, xylem transports water and minerals upward without a heart; evaporation from leaves produces transpiration pull, assisted by cohesion and sometimes root pressure. Thus option A identifies the main difference. The other options wrongly give plants a heart or assign haemoglobin and photosynthesis to xylem or blood.
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What is the correct answer to this question?
Blood is pumped while transpiration pull is important in xylem
Why is this the correct answer?
Human blood circulation is driven primarily by the muscular heart, which creates pressure to move blood through vessels. In plants, xylem transports water and minerals upward without a heart; evaporation from leaves produces transpiration pull, assisted by cohesion and sometimes root pressure. Thus option A identifies the main difference. The other options wrongly give plants a heart or assign haemoglobin and photosynthesis to xylem or blood.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Transportation.
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