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Հարց 95

Which statement about root hair cells is correct?

  1. They contain no chloroplasts, because no light reaches themՃիշտ պատասխան
  2. They contain chloroplasts, just as every other plant cell does
  3. They contain chloroplasts but keep them inactive underground
  4. They contain chloroplasts that turn mineral ions into sugar

Բացատրություն

Chloroplasts are only of use where light arrives, and a cell buried among soil particles receives none, so a root hair cell is simply not built with any. The assumption that every plant cell must be green comes from looking only at leaves, whereas a plant puts its light-capturing structures where light actually falls.

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Հարց 95: Which statement about root hair cells is correct? · Plants and Photosynthesis · Questena