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Вопрос 17

Which parts of a healthy garden plant can carry out photosynthesis? Select all that apply.

  1. A brightly coloured petal
  2. A green leaf bladeПравильный ответ
  3. A woody brown twig
  4. A green stemПравильный ответ
  5. An underground root

Объяснение

Photosynthesis needs chlorophyll, the green pigment, so a part can only do it if that pigment is present, and both leaf blades and green stems qualify. Petals take their colour from other pigments, a woody twig is covered by dead bark that shuts out the light, and an ordinary root grows in the dark below ground.

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Вопрос 17: Which parts of a healthy garden plant can carry out… · Plants and Photosynthesis · Questena