The diagram shows part of a section through a leaf - Leaving Cert Biology - Question 4 - 2006
Question 4
The diagram shows part of a section through a leaf.
(a) Use the letter A to show a point of entry of carbon dioxide.
(b) Name a gas that leaves the leaf at this poi... show full transcript
Worked Solution & Example Answer:The diagram shows part of a section through a leaf - Leaving Cert Biology - Question 4 - 2006
Step 1
Use the letter A to show a point of entry of carbon dioxide.
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Answer
The point of entry of carbon dioxide is located at letter A, which marks the stoma.
Step 2
Name a gas that leaves the leaf at this point.
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Answer
The gas that leaves the leaf at this point is oxygen, which is a byproduct of photosynthesis.
Step 3
Use the letter B to show the part of the leaf in which most photosynthesis occurs.
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Answer
The part of the leaf where most photosynthesis takes place is indicated by letter B, which represents the palisade layer.
Step 4
Name the structures in plant cells in which photosynthesis occurs.
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Answer
Photosynthesis occurs in chloroplasts, which are specialized organelles in plant cells.
Step 5
In addition to carbon dioxide another small molecule is needed for photosynthesis. Name this other molecule.
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Answer
The other small molecule needed for photosynthesis is water.
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