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Explain the Term Atp. - Biology

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प्रश्न

Explain the Term ATP.

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उत्तर

ATP: Adenosine triphosphate, a small water-soluble molecule that acts as energy currency in cells.

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पाठ 5: Photosynthesis - Explain the Terms

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आईसीएसई Biology [English] Class 10 ICSE
पाठ 5 Photosynthesis
Explain the Terms | Q 1

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the exact location of the Thylakoids


The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both testtubes are kept in sunlight. Answer the questions that follow:

(i) Name the physiological process that releases the bubbles of oxygen.
(ii) Explain the physiological process as mentioned above in Q2 (a)(i).
(iii) What is the purpose of keeping a snail in test-tube ‘B’?
(iv) Why does test-tube ‘B’ have more bubbles of oxygen?
(v) Given an example of a water plant that can be used in the above process.
(vi) Write the overall chemical equation for the above process.


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If you immerse a leaf intact on the plant in ice cold water, it will continue to photosynthesise in bright sunshine.


Give some adaptations in green leaf photosynthesis.


Choose the Correct Answer:
Which would do maximum harm to a tree?


Higher Order Thinking Skill.

Imagine that student A studied the importance of certain factors in photosynthesis. He took a potted plant and kept it in dark for 24 hours. In the early hours of the next morning, he covered one of the leaves with dark paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.

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  3. How will you prove that starch is present in the leaves?
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Where do the light-dependent reaction and the Calvin cycle occur in the chloroplast?


Define the following term:

Photolysis of water


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