The diagram shows a section through a leaf - Leaving Cert Biology - Question b - 2014
Question b
The diagram shows a section through a leaf.
(i) Name the green pigment present in leaves that is essential for photosynthesis.
(ii) Name the cell structures, prese... show full transcript
Worked Solution & Example Answer:The diagram shows a section through a leaf - Leaving Cert Biology - Question b - 2014
Step 1
Name the green pigment present in leaves that is essential for photosynthesis.
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Answer
The green pigment present in leaves that is essential for photosynthesis is called chlorophyll.
Step 2
Name the cell structures, present in large numbers in part B, that are needed for photosynthesis.
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Answer
The cell structures present in large numbers in part B that are needed for photosynthesis are chloroplasts.
Step 3
Name the opening labelled A that is used for gas exchange.
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Answer
The opening labelled A that is used for gas exchange is known as a stomata.
Step 4
Name the gas in the air needed for photosynthesis.
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Answer
The gas in the air needed for photosynthesis is carbon dioxide.
Step 5
In photosynthesis, water is split into three products. Name these three products.
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Answer
In photosynthesis, water is split into three products: protons (hydrogen ions), electrons, and oxygen.
Step 6
From your knowledge of photosynthesis, suggest two ways of improving the rate of photosynthesis of plants in a greenhouse.
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Answer
To improve the rate of photosynthesis of plants in a greenhouse, two methods can be employed: 1) Increase the intensity of light or the number of hours of light exposure, and 2) Enhance the concentration of carbon dioxide in the air.
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