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4. Short answer type questions.
1. How nutrition serves living organisms
2. What is the role of chlorophyll in the
process of photosynthesis?
3. List the conditions necessary for
photosynthesis
.
Answers
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1. Nutrients help break down food to give organisms energy. They are used in every process of an organism's body. Some of the processes are growth (building cells), repair (healing a wound), and maintaining life (breathing). Plants and other autotrophs absorb nutrients from soil and water.
2. Chlorophyll can absorb the energy from sunlight. The sunlight energy absorbed by chlorophyll is used to combine carbon dioxide and water in the green leaves to produce food. Chlorophyll absorbs light energy from the sun and supplies this energy to the leaves to enable them to carry out photosynthesis for making food.
3. Plants need three things to perform photosynthesis: carbon dioxide, water and sunlight.
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