EASY

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The Partial Pressures (in Mm Hg) of Oxygen (O₂) And Carbon Dioxide (CO₂) at alveoli (the site of diffusion) are-

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Important Questions on Breathing and Exchange of Gases

EASY

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

The partial pressures (in

mmHg

) of oxygen

(O_{2})

and carbon dioxide

({CO}_{2})

at alveoli (the site of diffusion) are:

MEDIUM

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

Assertion ( $A$ ): Biconcave shape of mammalian $RBC$ facilitates gas exchange.

Reason ( $R$ ): Biconcave shape provides a high surface to volume ratio.

EASY

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

If you exhale multiple times into a conical flask containing lime water through a single inlet fixed through a stop cork, lime water will?

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

The process in which atmospheric air with

21 %

O_{2}

is drawn in and alveolar air rich in

{CO}_{2}

is sent out is called

MEDIUM

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

The atmospheric pressure is 760 mm Hg at the sea level. Which of the following ranges is nearest to the partial pressure of

C O_{2}

in mm Hg?

EASY

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

Gaseous exchange of oxygen and carbon dioxide between alveolar air and capillaries takes place by:

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

Compared to the atmosphere air, the alveolar air has:

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

Which of the following best describes the process of gas exchange in the lungs?

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

The diffusion membrane is made up of:

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

Diffusion of gases occurs in the alveolar region only and not in any other part of the respiratory system. Discuss.

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

Body tissues obtain oxygen from haemoglobin due to its dissociation in tissues, which is caused by

HARD

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

How does partial pressure help in gaseous exchange during respiration?

EASY

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

In Alveoli of lungs, the rate of diffusion is affected by:-

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

Resistance in the airways is typically low. Why? Give two reasons.

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

What is partial pressure? How does it help in gaseous exchange during respiration?

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

If a large number of individuals are enclosed in a room, then:

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Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

The percentage of oxygen in inhaled air is about

EASY

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

The partial pressure of oxygen

({pO}_{2})

in deoxygenated blood is

MEDIUM

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

What is the principle of the exchange of gases?

MEDIUM

Biology>Human Physiology>Breathing and Exchange of Gases>Exchange of Gases

What will be the

{pO}_{2}

and

{pCO}_{2}

in the atmospheric air compared to those in the alveolar air?

The Partial Pressures (in Mm Hg) of Oxygen (O2) And Carbon Dioxide (CO2) at alveoli (the site of diffusion) are-

Important Questions on Breathing and Exchange of Gases

Learn and Prepare for any exam you want !

The Partial Pressures (in Mm Hg) of Oxygen (O₂) And Carbon Dioxide (CO₂) at alveoli (the site of diffusion) are-