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Samar shah
@samar-shah
Noble Member
Joined: Jun 14, 2021
Last seen: Jul 17, 2023
Topics: 0 / Replies: 2321
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Answer to: Which among the following is an unfavourable condition for formation of oxyhaemoglobin?

Correct Option: (B) higher temperature Explanation: Lower temperature is favourable for formation of oxyhaemoglobin.

7 months ago
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Answer to: The total thickness of diffusion membrane in lungs is

Correct Option: (B) <1mm Explanation: Thickness of diffusion membrane is approx 0.2mm.

7 months ago
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Answer to: A concentration gradient is established for CO2 during exchange of gases

Correct Option: (C) from tissue to blood and blood to alveoli. Explanation: CO2 moves in body from tissue to blood to alveoli to outside.

8 months ago
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Answer to: Find the correctly matched pair w.r.t. the O2 dissociation curve of a normal adult human.

Correct Option:(B) 25mm Hg → 50% Explanation: pO2 when 50% of Hb is saturated is calculated to be 25mm Hg.

8 months ago
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Answer to: On an average, a healthy human breathes

Correct Option: (A) 12-16 times/ minute

8 months ago
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8 months ago
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Answer to: A spirometer can be used to measure directly

Correct Option: (A) IC Explanation: Spirometer can measure volume of air inspired or expired and not volume of air still present in lungs i.e RV.

8 months ago
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Answer to: Bohr effect is the effect of: (A) CO2 on RBCs (B) O2 on haemoglobin

Correct Option: (D) CO2 on oxyhaemoglobin Explanation: Bohr effect is displacement of O2 in oxyhaemoglobin due to increase in partial pressure of ...

8 months ago
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Answer to: Which is true for partial pressure of CO2?

Correct Option: (B) more in alveolar air than in expired air Explanation: pCO2 in alveolar air is 40mm Hg and in expired air is 32mm Hg.

8 months ago
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Answer to: Adam’s apple represents (A) Cricoid cartilage (B) Thyroid cartilage (C) Arytenoid cartilage (D) Epiglottis

Correct Option: (B) Thyroid cartilage Explanation: Thyroid cartilage from a subcutaneous projection, prominent in male.

8 months ago
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Answer to: Pick the incorrect statement. (A) Lungs are situated in the thoracic chamber which is anatomically an air tight chamber.

Correct Option:(C) Pulmonary ventilation involves diffusion of gases between blood and tissues. Explanation: Pulmonary ventilation means breathing...

8 months ago
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Answer to: The respiratory part of the respiratory system

Correct Option: (C) Site of actual diffusion of O2 and CO2 between blood and atmospheric air. Explanation: Respiratory part comprises of respirato...

8 months ago
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Answer to: Vital capacity can be defined as: (A) Total volume of air present is lungs.

Correct Option: (C) Maximum amount of air a person can inhale after forced expiration.

8 months ago
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Answer to: The conducting part of the respiratory system comprises of the part starting from

Correct Option: (B) External nostrils to terminal bronchioles.

8 months ago
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Answer to: Which is the incorrect statement? (A) Sponges use their body surface for simple diffusion of gases.

Correct Option: (C) Epiglottis guards the entry of air in larynx. Explanation: Epiglottis guards entry of food in larynx.

8 months ago
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8 months ago
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Answer to: Incomplete cartilaginous rings for support is found in (A) Trachea, primary, secondary & tertiary bronchi, initial bronchioles.

Correct Option: (A) Trachea, primary, secondary & tertiary bronchi, initial bronchioles. Explanation: Cartilaginaous rings are found in the co...

8 months ago
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