Science
(a) The transport system in plants is relatively slower than in animals. Give reasons.
(b) State the role of phloem in the transport of materials in plants.
Roots Absorption
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Answer
(a) The transport system in plants is slower because they do not have a pumping organ like the heart. Movement of water and minerals occurs mainly due to transpiration pull and root pressure, and food moves by pressure gradients in phloem. These processes are slower than the rapid blood circulation in animals.
(b) The phloem transports food materials (mainly sucrose) produced in the leaves during photosynthesis to all other parts of the plant and this movement of food from leaves to storage organs or growing regions is called translocation.
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