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Questions and Answers
What is the purpose of placing one potted Plectranthus plant in the dark for 48 hours?
What is the purpose of placing one potted Plectranthus plant in the dark for 48 hours?
- To detect the presence of starch in the leaves
- To observe the effect of ethyl alcohol on plant leaves
- To compare the growth rate of the plant in dark and light conditions
- To test the role of light in photosynthesis (correct)
What is the purpose of boiling the leaves in a water bath?
What is the purpose of boiling the leaves in a water bath?
- To test for the presence of cellulose in the leaves
- To increase the concentration of starch in the leaves
- To soften the leaves for easier handling (correct)
- To extract pigments involved in photosynthesis
Why are the boiled leaves transferred and immersed in ethyl alcohol?
Why are the boiled leaves transferred and immersed in ethyl alcohol?
- To preserve the leaves for future analysis
- To remove any impurities from the leaf surface
- To detect the presence of chlorophyll in the leaves (correct)
- To eliminate any remaining water content
Which material is essential for testing starch in leaves after boiling them?
Which material is essential for testing starch in leaves after boiling them?
Why is it important to mark the two beakers containing water during the experiment?
Why is it important to mark the two beakers containing water during the experiment?
What is the consequence of boiling the beaker set-up under direct flame?
What is the consequence of boiling the beaker set-up under direct flame?
Why is it essential to compare the results between exposed and covered areas of the leaves?
Why is it essential to compare the results between exposed and covered areas of the leaves?
What is the purpose of using a water bath for boiling in the experiment?
What is the purpose of using a water bath for boiling in the experiment?
Which pigment is typically extracted from the leaves during the experiment?
Which pigment is typically extracted from the leaves during the experiment?
Why do you need to drain the excess iodine after waiting for 10 minutes in step 'g'?
Why do you need to drain the excess iodine after waiting for 10 minutes in step 'g'?
What is the purpose of adding iodine solution to cover the leaves in step 'f'?
What is the purpose of adding iodine solution to cover the leaves in step 'f'?
What are the three main requirements for photosynthesis to occur?
What are the three main requirements for photosynthesis to occur?
Which of the following is the general equation for photosynthesis?
Which of the following is the general equation for photosynthesis?
Which of the following is NOT a pathway for glucose, the main product of photosynthesis?
Which of the following is NOT a pathway for glucose, the main product of photosynthesis?
What is a key objective that a student is expected to accomplish at the end of the exercise related to factors affecting photosynthesis?
What is a key objective that a student is expected to accomplish at the end of the exercise related to factors affecting photosynthesis?
In photosynthesis, what is the main role of chloroplasts?
In photosynthesis, what is the main role of chloroplasts?
What is one task a student might be expected to do related to pigments in photosynthesis?
What is one task a student might be expected to do related to pigments in photosynthesis?
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