Break time：Photosynthesis
[2017.03.01] 發表
【明報專訊】Down
1. Plants absorb carbon dioxide and release _ _ _ _ _ _ during photosynthesis (光合作用). They take in _ _ _ _ _ _ and release carbon dioxide at night, when photosynthesis does not take place.
2. Water travels from soil to a plant's leaves _ _ _ _ _ _ _ its roots, stem and branches.
3. Sunlight turns the carbon dioxide and water a plant's leaves absorb into glucose (a type of _ _ _ _ _), which is its food.
Across
3. Photosynthesis is the most important biological process on earth. Neither plants nor animals can _ _ _ _ _ _ _ without it.
4. Chlorophyll (葉綠素), a chemical in leaves, gives them its _ _ _ _ _ colour. It absorbs warmth and energy from sun rays.
(Answers on next text)
■Glossary
absorb (v) 吸收
stem (n) (植物的)莖
glucose (n) (植物、尤指水果中的)葡萄糖
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