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Inhalation and Exhalation

Which of the ...

Question

Which of the following conditions occur when haemoglobin becomes a stronger acid?

A

Haemoglobin acts as buffer

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B

Oxygen is released from oxyhaemoglobin

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C

Bicarbonate ions are transported in the RBCs

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D

Displaces carbon dioxide from blood

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Solution

The correct option is D
Displaces carbon dioxide from blood

Combination of oxygen with haemoglobin causes it to become a stronger acid and it then tends to displace carbon dioxide from the blood.

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Similar questions

Q. Fill in the blanks with approriate words.
Most carbon dioxide is transported in blood in the form of .......... ions. Hydrogen ions formed when carbon dioxide enters blood become attached to .......... , so that the addition of carbon dioxide causes only a small decrease in blood pH.

Which of the following conditions is true, when carbon dioxide diffuses out from the blood into the air inside the alveoli?

Q. Which of the following statements are correct/incorrect?
I. The blood transports carbon dioxide comparatively easily because of its highest solubility.
II. Approximately 89% of carbon dioxide is transported being dissolved in the plasma of blood.
III. The carbon dioxide produced by the tissues, diffuses passively into the blood stream and passes into red blood corpuscles and react with water to form

H_{2} C O_{3}

.
IV. The oxyhaemoglobin

(H b O_{2})

of the erythrocytes is basic.
V. The chloride ions diffuse from plasma into the erythrocytes to maintain ionic balance.

Q. The blood leaving the tissues becomes richer in:
(a) carbon dioxide
(b) water
(c) haemoglobin
(d) oxygen

Q. Assertion :Oxygenation of blood promotes the release of carbon-dioxide from the blood in the lungs. Reason: Carbon-dioxide is carried as bicarbonates in erythrocytes of blood.

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