Free Breathing And Exchange Of Gases (Daily Quiz: 19) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Assertion:
Vital capacity is higher in athletes than non-athletes.
Reason:
Vital capacity is about 3.5–4.5 litres in a normal adult person.

(a) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.

(b) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

(c) If the assertion is true but the reason is false.

(d) If both the assertion and reason are false.

Question-2

Bulk of carbon dioxide ($CO_{2}$) released from body tissues into the blood is present as

(a) Bicarbonate in blood plasma and RBCs

(b) Free $CO_{2}$ in blood plasma

(c) Carbamino-haemoglobin in RBCs

(d) 70% carbamino-haemoglobin and 30% as bicarbonate

Question-3

From the following relationships between respiratory volume and capacities, mark the correct option.

1. Inspiratory Capacity (IC) = Tidal Volume + Residual Volume
2. Vital Capacity (VC) = Tidal Volume (TV) + Inspiratory Reserve Volume (IRV) + Expiratory Reserve Volume (ERV).
3. Residual Volume (RV) = Vital Capacity (VC) – Inspiratory Reserve Volume (IRV)
4. Tidal Volume (TV) = Inspiratory Capacity (IC) – Inspiratory Reserve Volume (IRV)

Codes

(a) (i) Incorrect, (ii) Correct, (iii) Incorrect, (iv) Correct

(b) (i) Correct, (ii) Correct, (iii) Incorrect. (iv) Correct

(c) (i) Incorrect, (ii) Incorrect, (iii) Incorrect, (iv) Correct

(d) (i) Correct, (ii) Incorrect, (iii) Correct, (iv) Incorrect

Question-4

Membrane separating air in pulmonary alveoli from blood capillaries is

(a) cardiac epithelium

(b) alveolar epithelium

(c) endothelium of blood capillaries

(d) both (b) and (c)

Question-5

Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularized bag like structures called

(a) Respiratory bronchioles

(b) Alveoli

(c) Pleura

(d) Follicles