Հարց 87

How does a green plant obtain its food? Select all that apply.

It absorbs ready-made food from the soil through its roots
It takes in glucose dissolved in the soil water
It makes its own glucose in its leavesՃիշտ պատասխան
The soil supplies it with raw materials rather than with foodՃիշտ պատասխան
It breaks down dead material in the soil for food

Բացատրություն

A plant assembles sugar for itself from simple raw materials, and the leaves are where that assembly happens, so nothing outside the plant has to hand it any food. What the soil contributes is water and dissolved ions, which serve as raw materials for that assembly and for growth rather than as food, so absorbing ready-made food through the roots is not a route open to a plant at all.

Բացատրություն

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