Bright Tutorials Bright Tutorials
CBSE Class 10 Science Question 15 of 60

Solved 2022 Term 1 Question Paper CBSE Class 10 Science — Question 15

Back to all questions
15
Question

Question 15

Which of the following statements are correct in reference to the role of A (shown in the given diagram) during a breathing cycle in human beings?

Which of the following statements are correct in reference to the role of A (shown in the given diagram) during a breathing cycle in human beings? CBSE 2022 Term 1 Science Class 10 Question Paper Solved.

(i) It helps to decrease the residual volume of the air in lungs.

(ii) It flattens as we inhale.

(iii) It gets raised as we inhale.

(iv) It helps the chest cavity to become larger.

  1. (ii) and (iv)
  2. (iii) and (iv)
  3. (i) and (ii)
  4. (i), (ii) and (iv)
Answer

(ii) and (iv)

Reason — While breathing in, we lift our ribs and flatten our diaphragm, and the chest cavity becomes larger. Because of this, air is sucked into the lungs and fills the expanded alveoli.