286111
Which fact suggests that most ${{\text{O}}_{2}}$ is transported from lungs to the tissues combined with haemoglobin rather than dissolved in blood plasma?
1 ${{\text{O}}_{2}}$-carrying capacity of whole blood is much higher than that of plasma and ${{\text{O}}_{2}}$ content of blood leaving the lungs is greater than that of blood entering the lungs.
2 haemoglobin can combine with${{\text{O}}_{2}}$.
3 oxyhaemoglobin can dissociate into haemoglobin and${{\text{O}}_{2}}$.
4 increase in$\text{C}{{\text{O}}_{2}}$ concentration decreases the ${{\text{O}}_{2}}$ affinity of haemoglobin.
Explanation:
(a)
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286112
Every $100\text{ml}$ of oxygenated blood delivers following amount of ${{\text{O}}_{2}}$ to the tissues under normal physiological contition.
1 5ml
2 $25\text{ml}$
3 $50\text{ml}$
4 More than$50\text{ml}$
Explanation:
(a) Every $100\text{ml}$ of oxygenated blood can deliver around $5\text{ml}$ of ${{\text{O}}_{2}}$ to the tissues under normal physiological conditions.
NCERT ( Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286113
What will be the $\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ in the atmospheric air as compared to that of alveolar air?
1 $\text{p}{{\text{O}}_{2}}$ lesser and $\text{pC}{{\text{O}}_{2}}$ higher
2 $\text{p}{{\text{O}}_{2}}$ higher and $\text{pC}{{\text{O}}_{2}}$ lesser
3 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ lesser
4 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ higher
Explanation:
(b) Pressure contributed by individual gas in a mixture of gases is called partial pressure and is represented as $\text{p}{{\text{O}}_{2}}$ for oxygen and $\text{pC}{{\text{O}}_{2}}$ for carbon dioxide. On the basis of the table given below it can be concluded that $\text{p}{{\text{O}}_{2}}$ is higher and $\text{pC}{{\text{O}}_{2}}$ is lesser in the atmospheric air as compared to that of alveolar air.
Table: partial pressure of oxygen and carbon dioxide at different parts involved in diffusion in comparison to those in the atmosphere:
"Respiratory gas" Atmospheric air Alveoli Blood (deoxygenated) Blood (Oxygenated) Tissues
${{\text{O}}_{2}}$ 159 104 40 95 40
$\text{C}{{\text{O}}_{2}}$ 0.3 40 45 40 45
NCERT (Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286118
$\text{C}{{\text{O}}_{2}}$ dissociates from carbaminohaemoglobin when
1 $\text{pC}{{\text{O}}_{2}}$ is high and $\text{p}{{\text{O}}_{2}}$ is low
2 $\text{p}{{\text{O}}_{2}}$ is high and $\text{pC}{{\text{O}}_{2}}$ is low
3 $\text{pC}{{\text{O}}_{2}}$ and $\text{p}{{\text{O}}_{2}}$ are equal
4 None of the above
Explanation:
(c) Every $100\text{ml}$ of deoxygenated blood delivers approximately $4\text{ml}$ of $\text{C}{{\text{O}}_{2}}$ to the alveoli.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286128
During oxygen transport the oxyhaemoglobin at the tissue level liberates oxygen to the cells because in tissue
1 ${{\text{O}}_{2}}$ concentration is high and $\text{C}{{\text{O}}_{2}}$ is low
2 ${{\text{O}}_{2}}$ concentration is low and $\text{C}{{\text{O}}_{2}}$ is high
3 ${{\text{O}}_{2}}$ tension is high and $\text{C}{{\text{O}}_{2}}$ tension is low
4 ${{\text{O}}_{2}}$ tension is low and $\text{C}{{\text{O}}_{2}}$ tension is high
286111
Which fact suggests that most ${{\text{O}}_{2}}$ is transported from lungs to the tissues combined with haemoglobin rather than dissolved in blood plasma?
1 ${{\text{O}}_{2}}$-carrying capacity of whole blood is much higher than that of plasma and ${{\text{O}}_{2}}$ content of blood leaving the lungs is greater than that of blood entering the lungs.
2 haemoglobin can combine with${{\text{O}}_{2}}$.
3 oxyhaemoglobin can dissociate into haemoglobin and${{\text{O}}_{2}}$.
4 increase in$\text{C}{{\text{O}}_{2}}$ concentration decreases the ${{\text{O}}_{2}}$ affinity of haemoglobin.
Explanation:
(a)
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286112
Every $100\text{ml}$ of oxygenated blood delivers following amount of ${{\text{O}}_{2}}$ to the tissues under normal physiological contition.
1 5ml
2 $25\text{ml}$
3 $50\text{ml}$
4 More than$50\text{ml}$
Explanation:
(a) Every $100\text{ml}$ of oxygenated blood can deliver around $5\text{ml}$ of ${{\text{O}}_{2}}$ to the tissues under normal physiological conditions.
NCERT ( Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286113
What will be the $\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ in the atmospheric air as compared to that of alveolar air?
1 $\text{p}{{\text{O}}_{2}}$ lesser and $\text{pC}{{\text{O}}_{2}}$ higher
2 $\text{p}{{\text{O}}_{2}}$ higher and $\text{pC}{{\text{O}}_{2}}$ lesser
3 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ lesser
4 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ higher
Explanation:
(b) Pressure contributed by individual gas in a mixture of gases is called partial pressure and is represented as $\text{p}{{\text{O}}_{2}}$ for oxygen and $\text{pC}{{\text{O}}_{2}}$ for carbon dioxide. On the basis of the table given below it can be concluded that $\text{p}{{\text{O}}_{2}}$ is higher and $\text{pC}{{\text{O}}_{2}}$ is lesser in the atmospheric air as compared to that of alveolar air.
Table: partial pressure of oxygen and carbon dioxide at different parts involved in diffusion in comparison to those in the atmosphere:
"Respiratory gas" Atmospheric air Alveoli Blood (deoxygenated) Blood (Oxygenated) Tissues
${{\text{O}}_{2}}$ 159 104 40 95 40
$\text{C}{{\text{O}}_{2}}$ 0.3 40 45 40 45
NCERT (Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286118
$\text{C}{{\text{O}}_{2}}$ dissociates from carbaminohaemoglobin when
1 $\text{pC}{{\text{O}}_{2}}$ is high and $\text{p}{{\text{O}}_{2}}$ is low
2 $\text{p}{{\text{O}}_{2}}$ is high and $\text{pC}{{\text{O}}_{2}}$ is low
3 $\text{pC}{{\text{O}}_{2}}$ and $\text{p}{{\text{O}}_{2}}$ are equal
4 None of the above
Explanation:
(c) Every $100\text{ml}$ of deoxygenated blood delivers approximately $4\text{ml}$ of $\text{C}{{\text{O}}_{2}}$ to the alveoli.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286128
During oxygen transport the oxyhaemoglobin at the tissue level liberates oxygen to the cells because in tissue
1 ${{\text{O}}_{2}}$ concentration is high and $\text{C}{{\text{O}}_{2}}$ is low
2 ${{\text{O}}_{2}}$ concentration is low and $\text{C}{{\text{O}}_{2}}$ is high
3 ${{\text{O}}_{2}}$ tension is high and $\text{C}{{\text{O}}_{2}}$ tension is low
4 ${{\text{O}}_{2}}$ tension is low and $\text{C}{{\text{O}}_{2}}$ tension is high
286111
Which fact suggests that most ${{\text{O}}_{2}}$ is transported from lungs to the tissues combined with haemoglobin rather than dissolved in blood plasma?
1 ${{\text{O}}_{2}}$-carrying capacity of whole blood is much higher than that of plasma and ${{\text{O}}_{2}}$ content of blood leaving the lungs is greater than that of blood entering the lungs.
2 haemoglobin can combine with${{\text{O}}_{2}}$.
3 oxyhaemoglobin can dissociate into haemoglobin and${{\text{O}}_{2}}$.
4 increase in$\text{C}{{\text{O}}_{2}}$ concentration decreases the ${{\text{O}}_{2}}$ affinity of haemoglobin.
Explanation:
(a)
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286112
Every $100\text{ml}$ of oxygenated blood delivers following amount of ${{\text{O}}_{2}}$ to the tissues under normal physiological contition.
1 5ml
2 $25\text{ml}$
3 $50\text{ml}$
4 More than$50\text{ml}$
Explanation:
(a) Every $100\text{ml}$ of oxygenated blood can deliver around $5\text{ml}$ of ${{\text{O}}_{2}}$ to the tissues under normal physiological conditions.
NCERT ( Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286113
What will be the $\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ in the atmospheric air as compared to that of alveolar air?
1 $\text{p}{{\text{O}}_{2}}$ lesser and $\text{pC}{{\text{O}}_{2}}$ higher
2 $\text{p}{{\text{O}}_{2}}$ higher and $\text{pC}{{\text{O}}_{2}}$ lesser
3 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ lesser
4 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ higher
Explanation:
(b) Pressure contributed by individual gas in a mixture of gases is called partial pressure and is represented as $\text{p}{{\text{O}}_{2}}$ for oxygen and $\text{pC}{{\text{O}}_{2}}$ for carbon dioxide. On the basis of the table given below it can be concluded that $\text{p}{{\text{O}}_{2}}$ is higher and $\text{pC}{{\text{O}}_{2}}$ is lesser in the atmospheric air as compared to that of alveolar air.
Table: partial pressure of oxygen and carbon dioxide at different parts involved in diffusion in comparison to those in the atmosphere:
"Respiratory gas" Atmospheric air Alveoli Blood (deoxygenated) Blood (Oxygenated) Tissues
${{\text{O}}_{2}}$ 159 104 40 95 40
$\text{C}{{\text{O}}_{2}}$ 0.3 40 45 40 45
NCERT (Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286118
$\text{C}{{\text{O}}_{2}}$ dissociates from carbaminohaemoglobin when
1 $\text{pC}{{\text{O}}_{2}}$ is high and $\text{p}{{\text{O}}_{2}}$ is low
2 $\text{p}{{\text{O}}_{2}}$ is high and $\text{pC}{{\text{O}}_{2}}$ is low
3 $\text{pC}{{\text{O}}_{2}}$ and $\text{p}{{\text{O}}_{2}}$ are equal
4 None of the above
Explanation:
(c) Every $100\text{ml}$ of deoxygenated blood delivers approximately $4\text{ml}$ of $\text{C}{{\text{O}}_{2}}$ to the alveoli.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286128
During oxygen transport the oxyhaemoglobin at the tissue level liberates oxygen to the cells because in tissue
1 ${{\text{O}}_{2}}$ concentration is high and $\text{C}{{\text{O}}_{2}}$ is low
2 ${{\text{O}}_{2}}$ concentration is low and $\text{C}{{\text{O}}_{2}}$ is high
3 ${{\text{O}}_{2}}$ tension is high and $\text{C}{{\text{O}}_{2}}$ tension is low
4 ${{\text{O}}_{2}}$ tension is low and $\text{C}{{\text{O}}_{2}}$ tension is high
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BREATHING and EXCHANGE OF GASES(NCERT)
286111
Which fact suggests that most ${{\text{O}}_{2}}$ is transported from lungs to the tissues combined with haemoglobin rather than dissolved in blood plasma?
1 ${{\text{O}}_{2}}$-carrying capacity of whole blood is much higher than that of plasma and ${{\text{O}}_{2}}$ content of blood leaving the lungs is greater than that of blood entering the lungs.
2 haemoglobin can combine with${{\text{O}}_{2}}$.
3 oxyhaemoglobin can dissociate into haemoglobin and${{\text{O}}_{2}}$.
4 increase in$\text{C}{{\text{O}}_{2}}$ concentration decreases the ${{\text{O}}_{2}}$ affinity of haemoglobin.
Explanation:
(a)
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286112
Every $100\text{ml}$ of oxygenated blood delivers following amount of ${{\text{O}}_{2}}$ to the tissues under normal physiological contition.
1 5ml
2 $25\text{ml}$
3 $50\text{ml}$
4 More than$50\text{ml}$
Explanation:
(a) Every $100\text{ml}$ of oxygenated blood can deliver around $5\text{ml}$ of ${{\text{O}}_{2}}$ to the tissues under normal physiological conditions.
NCERT ( Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286113
What will be the $\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ in the atmospheric air as compared to that of alveolar air?
1 $\text{p}{{\text{O}}_{2}}$ lesser and $\text{pC}{{\text{O}}_{2}}$ higher
2 $\text{p}{{\text{O}}_{2}}$ higher and $\text{pC}{{\text{O}}_{2}}$ lesser
3 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ lesser
4 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ higher
Explanation:
(b) Pressure contributed by individual gas in a mixture of gases is called partial pressure and is represented as $\text{p}{{\text{O}}_{2}}$ for oxygen and $\text{pC}{{\text{O}}_{2}}$ for carbon dioxide. On the basis of the table given below it can be concluded that $\text{p}{{\text{O}}_{2}}$ is higher and $\text{pC}{{\text{O}}_{2}}$ is lesser in the atmospheric air as compared to that of alveolar air.
Table: partial pressure of oxygen and carbon dioxide at different parts involved in diffusion in comparison to those in the atmosphere:
"Respiratory gas" Atmospheric air Alveoli Blood (deoxygenated) Blood (Oxygenated) Tissues
${{\text{O}}_{2}}$ 159 104 40 95 40
$\text{C}{{\text{O}}_{2}}$ 0.3 40 45 40 45
NCERT (Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286118
$\text{C}{{\text{O}}_{2}}$ dissociates from carbaminohaemoglobin when
1 $\text{pC}{{\text{O}}_{2}}$ is high and $\text{p}{{\text{O}}_{2}}$ is low
2 $\text{p}{{\text{O}}_{2}}$ is high and $\text{pC}{{\text{O}}_{2}}$ is low
3 $\text{pC}{{\text{O}}_{2}}$ and $\text{p}{{\text{O}}_{2}}$ are equal
4 None of the above
Explanation:
(c) Every $100\text{ml}$ of deoxygenated blood delivers approximately $4\text{ml}$ of $\text{C}{{\text{O}}_{2}}$ to the alveoli.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286128
During oxygen transport the oxyhaemoglobin at the tissue level liberates oxygen to the cells because in tissue
1 ${{\text{O}}_{2}}$ concentration is high and $\text{C}{{\text{O}}_{2}}$ is low
2 ${{\text{O}}_{2}}$ concentration is low and $\text{C}{{\text{O}}_{2}}$ is high
3 ${{\text{O}}_{2}}$ tension is high and $\text{C}{{\text{O}}_{2}}$ tension is low
4 ${{\text{O}}_{2}}$ tension is low and $\text{C}{{\text{O}}_{2}}$ tension is high
286111
Which fact suggests that most ${{\text{O}}_{2}}$ is transported from lungs to the tissues combined with haemoglobin rather than dissolved in blood plasma?
1 ${{\text{O}}_{2}}$-carrying capacity of whole blood is much higher than that of plasma and ${{\text{O}}_{2}}$ content of blood leaving the lungs is greater than that of blood entering the lungs.
2 haemoglobin can combine with${{\text{O}}_{2}}$.
3 oxyhaemoglobin can dissociate into haemoglobin and${{\text{O}}_{2}}$.
4 increase in$\text{C}{{\text{O}}_{2}}$ concentration decreases the ${{\text{O}}_{2}}$ affinity of haemoglobin.
Explanation:
(a)
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286112
Every $100\text{ml}$ of oxygenated blood delivers following amount of ${{\text{O}}_{2}}$ to the tissues under normal physiological contition.
1 5ml
2 $25\text{ml}$
3 $50\text{ml}$
4 More than$50\text{ml}$
Explanation:
(a) Every $100\text{ml}$ of oxygenated blood can deliver around $5\text{ml}$ of ${{\text{O}}_{2}}$ to the tissues under normal physiological conditions.
NCERT ( Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286113
What will be the $\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ in the atmospheric air as compared to that of alveolar air?
1 $\text{p}{{\text{O}}_{2}}$ lesser and $\text{pC}{{\text{O}}_{2}}$ higher
2 $\text{p}{{\text{O}}_{2}}$ higher and $\text{pC}{{\text{O}}_{2}}$ lesser
3 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ lesser
4 Both$\text{p}{{\text{O}}_{2}}$ and $\text{pC}{{\text{O}}_{2}}$ higher
Explanation:
(b) Pressure contributed by individual gas in a mixture of gases is called partial pressure and is represented as $\text{p}{{\text{O}}_{2}}$ for oxygen and $\text{pC}{{\text{O}}_{2}}$ for carbon dioxide. On the basis of the table given below it can be concluded that $\text{p}{{\text{O}}_{2}}$ is higher and $\text{pC}{{\text{O}}_{2}}$ is lesser in the atmospheric air as compared to that of alveolar air.
Table: partial pressure of oxygen and carbon dioxide at different parts involved in diffusion in comparison to those in the atmosphere:
"Respiratory gas" Atmospheric air Alveoli Blood (deoxygenated) Blood (Oxygenated) Tissues
${{\text{O}}_{2}}$ 159 104 40 95 40
$\text{C}{{\text{O}}_{2}}$ 0.3 40 45 40 45
NCERT (Page-272 / N-187
BREATHING and EXCHANGE OF GASES(NCERT)
286118
$\text{C}{{\text{O}}_{2}}$ dissociates from carbaminohaemoglobin when
1 $\text{pC}{{\text{O}}_{2}}$ is high and $\text{p}{{\text{O}}_{2}}$ is low
2 $\text{p}{{\text{O}}_{2}}$ is high and $\text{pC}{{\text{O}}_{2}}$ is low
3 $\text{pC}{{\text{O}}_{2}}$ and $\text{p}{{\text{O}}_{2}}$ are equal
4 None of the above
Explanation:
(c) Every $100\text{ml}$ of deoxygenated blood delivers approximately $4\text{ml}$ of $\text{C}{{\text{O}}_{2}}$ to the alveoli.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES(NCERT)
286128
During oxygen transport the oxyhaemoglobin at the tissue level liberates oxygen to the cells because in tissue
1 ${{\text{O}}_{2}}$ concentration is high and $\text{C}{{\text{O}}_{2}}$ is low
2 ${{\text{O}}_{2}}$ concentration is low and $\text{C}{{\text{O}}_{2}}$ is high
3 ${{\text{O}}_{2}}$ tension is high and $\text{C}{{\text{O}}_{2}}$ tension is low
4 ${{\text{O}}_{2}}$ tension is low and $\text{C}{{\text{O}}_{2}}$ tension is high