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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.

Related tags

XylemBlood-TransportTranspiration-PullPlant-TransportTransportationLife ProcessesScienceClass 10 Mcq

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