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Oxygen Dissociation Curve

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Question

Direction: Refer to the given graph and select the correct options for the questions that follow.

How much oxygen will be released to the tissues by blood on passing from lungs to tissues?

A

15mL of

O_{2}

/100mL of blood

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B

70 mL of

O_{2}

/100 mL of blood

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C

5mL of

O_{2}

/100mL of blood

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D

20mL of

O_{2}

/100mL of blood

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Solution

The correct option is C 5mL of $O_{2}$ /100mL of blood
Out tissues usually take up approximately 25% of the oxygen in the tissue and the rest 75% remains unused in the human blood. So, if 20mL of $O_{2}$ /100mL of blood is present in the blood going from the lungs to the tissues, only 5mL of $O_{2}$ /100mL of blood will be taken up by the tissues.
So, the correct answer is '5mL of $O_{2}$ /100mL of blood'.

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Similar questions

Direction: Refer to the given graph and select the correct options for the questions that follow.

During strenuous exercise, the muscle interstitial fluid P

O_{2}

falls to 20 mm Hg. The oxygen delivered by the blood that passes through the exercising muscle tissues will be

1

gm of Hb carries

1.34

O_{2}

100

mL of blood has

15

gm Hb then, how much

O_{2}

will be carried approximately by

100

mL of arterial blood?

Q. The circulation of blood in human body supplies

O_{2}

C O_{2}

. The concentration of

O_{2}

C O_{2}

is variable but on the average,

100 m L

0.02 g

O_{2}

0.08 g C O_{2}

. The volume of

O_{2}

C O_{2}

1 a t m

and body temperature

37^{\circ} C

10 L

blood in human body is:

Q. Assertion :A sigmoid curve is obtained when percentage saturation of haemoglobin with

O_{2}

is plotted against the P

O_{2}

. Reason: Every 100 mL of oxygenated blood can deliver around 5ml of

O_{2}

to the tissues under normal physiological conditions.

Q. When 100 ml of a

O_{2} - O_{3}

mixture was passed through turpentine, there was the reduction of volume by 20 ml. If 100ml of such a mixture is heated, what will be the increase in volume?

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