7. (a) (i) Where in a plant cell does photosynthesis take place?
(ii) Name the gas released during photosynthesis - Leaving Cert Biology - Question 7 - 2013
Question 7
7. (a) (i) Where in a plant cell does photosynthesis take place?
(ii) Name the gas released during photosynthesis.
(b) Answer the following questions in relation... show full transcript
Worked Solution & Example Answer:7. (a) (i) Where in a plant cell does photosynthesis take place?
(ii) Name the gas released during photosynthesis - Leaving Cert Biology - Question 7 - 2013
Step 1
Where in a plant cell does photosynthesis take place?
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Answer
Photosynthesis takes place in the chloroplasts of a plant cell.
Step 2
Name the gas released during photosynthesis.
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Answer
The gas released during photosynthesis is oxygen.
Step 3
Name the plant that you used.
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Answer
I used a common aquatic plant such as Elodea.
Step 4
How did you vary the light intensity or the carbon dioxide concentration?
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Answer
I varied the light intensity by changing the distance between the lamp and the beaker of water containing the plant.
Step 5
Name one factor that you kept constant during the investigation.
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Answer
I kept the water temperature constant.
Step 6
How did you keep that factor constant?
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Answer
I used a water bath to maintain the temperature of the water at a consistent level.
Step 7
How did you measure the rate of photosynthesis?
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Answer
I measured the rate of photosynthesis by counting the number of bubbles produced per unit time.
Step 8
What was the result of your investigation?
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Answer
The results showed that greater light intensity or higher carbon dioxide concentration led to a higher rate of photosynthesis.
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