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CO(2) dissocated from carbamino haemoglo...

`CO_(2)` dissocated from carbamino haemoglobin when

A

`pCO_(2)` is high & `pO_(2)` is low

B

`pO_(2)` is high & `pCO_(2)` is low

C

`pCO_(2)` and `pO_(2)` are equal

D

none of the above

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The correct Answer is:
B
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Read the following statement . a) High H^+ concentration and higher temperature are favourable for dissociation of oxygen from oxyhaemoglobin. b) Partial pressure of oxygen in alveoli is higher than in tissue . c) The maximum volume of air a person can breather in after a forced expiration is vital capacity. d) In alveoli PCO_2 low and PO_2 high are for dissociation of CO_2 from carbamino haemoglobin . How many of the above statement are true ?

Assertion :- In the alveoli, dissociation of CO_(2) from carbamino-haemoglobin takes place Reason :- In the alveoli P_(CO_(2)) is low and P_(O_(2)) is high.

What is the shape of O_(2) dissociation curve for haemoglobin ?

CO_2 is transported to the lungs by the blood in two forms: as bicarbonates and as carbamino -haemoglobin.

Which of the following statement // is // are correct ? A- A high concentration of carbonic anhydrase is present in RBC. B- Minute quantities of carbonic anhydrase is present in plasma. C-Every 100 ml blood delivers approximately 4 ml of CO_(2) to the alveoli. D- 20-25% CO_(2) is carried by haemoglobin as carbaminohaemoglobin.

Haemoblobin is a Fe containing protein responsible for oxygen transport in the blood. The curves given below indicate the percentage suturation of haemoglobin by O_(2) as a funcion of partial pressure of O_(2) . Which of the following statement/s is/are correct for the given curves? I. In presence of CO_(2) , higher P_(O_(2)) is needed for a given percentage saturation. II. In presence of CO_(2) , lower P_(O_(2)) is needed for a give percentage saturation. III. The maximum percentgae saturation is not affected by the presence of CO_(2) IV. In the absence of CO_(2) , maximum saturation of haemoglobin occurs at lower p_(O_(2)) .

TRUEMEN BIOLOGY ENGLISH-BREATHING AND EXCHANGE OF GASES -MULTIPLE CHOICE QUESTIONS
  1. A person breathes in some volume of air by forced inspiration after ha...

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  2. Respiratory process is regulated by certain specialized centres in the...

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  3. CO(2) dissocated from carbamino haemoglobin when

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  4. From the following relationship between respiration volumes and capaci...

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  5. When CO(2) concentration in blood increases breathing becomes

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  6. Blood analysis of a patient reveals an unusually high quantity of carb...

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  7. People living at sea level have around 5 million RBC per cubic millime...

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  8. Which one of the following statement is in correct ?

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  9. The majority of carbon dioxide produced by our body cells is transport...

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  10. what is vital capacity of our lungs

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  11. the haemoglobin of a human foetus

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  12. The respiratory centre in medulla is sensitive to

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  13. Listed below are four respriatory capacities (i-iv) and four jumbled ...

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  14. Which two of the following changes (i-iv) usually tend to occur in the...

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  15. The figure given below shows a small part of human lung where exchange...

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  16. A large proportion of oxygen is left unused the human blood even after...

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  17. Which one of the following is the correct statement for respiration in...

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  18. People who have migrated from the planes to an area adjoining Rohtang ...

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  19. Which one of the following is a possibility for most of us in regards ...

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  20. Bulk of carbon dioxide (CO(2)) released from body tissues into the blo...

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