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Zoology MCQs for NEET — Practice Questions with Answers

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What percentage of Carbon dioxide is transported in a dissolved state through plasma

20-25

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Explanation

Refer NCERT, Heading 17.4, para 1, page-274

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What percentage of oxygen molecule is transported in a dissolved state through plasma

20-25

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Explanation

Refer NCERT, Heading 17.4, para 1, page-274

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Which of the following is true for transport of gases

Maximum amount of O₂ is transported by RBCs

Maximum amount of CO₂ is transported by Plasma as Bicarbonates

Plasma transports both CO₂ and O₂

All of the above

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Explanation

Refer NCERT, Heading 17.4, page-274

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Which of the following is a true statement?

Oxygen binding with HB is a reversible process

Oxygen binding with HB is an irreversible process

Hb is not a protein

It’s not a pigment

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Explanation

Refer NCERT, Heading 17.4.1, para 1, page-274

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The binding of HB with oxygen forms

Methamoglobin

Carbhaminohaemoglobin

Oxyhaemoglobin

Carbaminohaemoglobin

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Explanation

Refer NCERT, Heading 17.4.1, para 1, page-274

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Each Hb can carry a maximum of ___oxygen molecules.

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Explanation

Refer NCERT, Heading 17.4.1, para 1, page-274

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Binding of Oxygen with Hb is primarily related to

Partial pressure of O₂

Partial pressure of CO₂

Hydrogen ion Concentration

Temperature

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Explanation

Refer NCERT, Heading 17.4.1, para 1, page-274

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A __________is obtained when percentage saturation of Hb with O₂ is plotted against the pO₂.

J shaped curve

Sigmoid Curve

Exponential curve

None of these

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Explanation

Refer NCERT, Heading 17.4.1, page-274

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______temperature will shift the Oxyhaemoglobin dissociation Curve to _____side,

lower, left

higher, right

lower, right

Both A and B

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Explanation

Refer NCERT, Heading 17.4.1, para 1, page-274

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Hb cannot take up O₂ beyond a saturation level of

100%

97%

64%

93%

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Explanation

97%

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