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Question

Read the following sentences about photosynthesis.

(i) Sunlight, carbon dioxide, chlorophyll, and water are necessary.

(ii) Oxygen is absorbed.

(iii) Leaves carry out photosynthesis.

(iv) Proteins are made during photosynthesis.

Choose the correct pair of sentences that are true to photosynthesis.


A

(iii) and (iv)

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B

(i) and (iii)

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C

(ii) and (iv)

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D

(i) and (iv)

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Solution

The correct option is B

(i) and (iii)


The correct option is B

The explanation of the correct option:

Photosynthesis :

  1. The leaves prepare food for the plant through photosynthesis.
  2. During photosynthesis, the green leaves of plants combine carbon dioxide and water in the existence of sunlight and chlorophyll to produce food and oxygen.
  3. Photosynthesis is a method carried out by plant leaves, CO2, sun rays, chlorophylls, and liquid are required.
  4. The major product is glucose and oxygen is released as a byproduct.
  5. Photosynthesis takes place only in chloroplasts through photosynthetic pigments such as carotene, chlorophyll-a, xanthophyll, and chlorophyll b.

The explanation for the incorrect option:

Option A:

Not proteins, glucose is made as photosynthesis products.

Option C:

Oxygen is released during photosynthesis. Not proteins, glucose is made as photosynthesis products.

Option D:

Not proteins, glucose is made as photosynthesis products.

Final answer:

Sunlight, carbon dioxide, chlorophyll, and water are necessary and Leaves carry out photosynthesis are the correct pair of sentences that are true to photosynthesis


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