Gaseous Exchange – Online MCQs – Biology 10th

Biology Class 10th Online MCQs of Chapter 1 Gaseous Exchange for Sindh Board Science Group

Below Here to find Online MCQs Test of Chapter 1 (Gaseous Exchange) Biology Class 10th Science Group – Sindh Board. According to New Examination Pattern / Syllabus 2023-24 of Sindh Board Karachi Hyderabad Larkana Sukkur and Mirpurkhas.

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You have 10 minutes to complete the test consist of 20 Questions which are randomly selected from this Chapter.

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Chap 1 - Gaseous Exchange - Biology 10th

Science Group - Sindh Board

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1. Stomata are present in:

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2. The respiratory surface of human is:

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3. Each bronchiole is a very thin tube that opens into:

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4. These are microscopic openings present in the epidermis of leaves.

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5. Respiratory surface possesses the following property:

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6. The amount of molecular oxygen present in the air is about:

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7. In the lower part of the thorax, lies a sheet of muscles called:

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8. The gaseous exchange takes place at the level of alveoli. This gaseous exchange involves:

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9. Ribs are attached with:

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10. Each lung is made up of millions of:

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11. The opening of larynx is known as:

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12. Expiration involves:

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13. It is wrapped in two pleural membranes.

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14. Larynx is located on:

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15. It contains vocal cords to produce sound.

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16. The opening of larynx has a lid like cover called:

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17. In the following, the alveoli are infected so they may be filled with fluid or pus.

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18. we use normally about __________ of the air coming into the lungs.

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19. It is regulated by the hypothalamus of our brain.

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20. The biological functions which perform gaseous exchange:

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