278120
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
278121
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
278122
Oxide of haemoglobin is called
1 Oxyhaemoglobin
2 Deoxyhaemoglobin
3 Methaemoglobin
4 None of these
Explanation:
(a) Oxide of haemoglobin is called oxyhaemoglobin.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES
278123
As blood becomes fully ${{\text{O}}_{2}}$ saturated, haemoglobin combines with molecule(s) of oxygen.
1 1
2 2
3 4
4 8
Explanation:
(c) Haemoglobin has 4 subunits, each of which binds to 1 molecule of ${{\text{O}}_{2}}$ for a total of 4 molecules of ${{\text{O}}_{2}}$ bound to
1 haemoglobin molecule.
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BREATHING and EXCHANGE OF GASES
278120
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
278121
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
278122
Oxide of haemoglobin is called
1 Oxyhaemoglobin
2 Deoxyhaemoglobin
3 Methaemoglobin
4 None of these
Explanation:
(a) Oxide of haemoglobin is called oxyhaemoglobin.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES
278123
As blood becomes fully ${{\text{O}}_{2}}$ saturated, haemoglobin combines with molecule(s) of oxygen.
1 1
2 2
3 4
4 8
Explanation:
(c) Haemoglobin has 4 subunits, each of which binds to 1 molecule of ${{\text{O}}_{2}}$ for a total of 4 molecules of ${{\text{O}}_{2}}$ bound to
1 haemoglobin molecule.
278120
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
278121
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
278122
Oxide of haemoglobin is called
1 Oxyhaemoglobin
2 Deoxyhaemoglobin
3 Methaemoglobin
4 None of these
Explanation:
(a) Oxide of haemoglobin is called oxyhaemoglobin.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES
278123
As blood becomes fully ${{\text{O}}_{2}}$ saturated, haemoglobin combines with molecule(s) of oxygen.
1 1
2 2
3 4
4 8
Explanation:
(c) Haemoglobin has 4 subunits, each of which binds to 1 molecule of ${{\text{O}}_{2}}$ for a total of 4 molecules of ${{\text{O}}_{2}}$ bound to
1 haemoglobin molecule.
278120
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
278121
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
278122
Oxide of haemoglobin is called
1 Oxyhaemoglobin
2 Deoxyhaemoglobin
3 Methaemoglobin
4 None of these
Explanation:
(a) Oxide of haemoglobin is called oxyhaemoglobin.
NCERT Page-274 / N-189
BREATHING and EXCHANGE OF GASES
278123
As blood becomes fully ${{\text{O}}_{2}}$ saturated, haemoglobin combines with molecule(s) of oxygen.
1 1
2 2
3 4
4 8
Explanation:
(c) Haemoglobin has 4 subunits, each of which binds to 1 molecule of ${{\text{O}}_{2}}$ for a total of 4 molecules of ${{\text{O}}_{2}}$ bound to
1 haemoglobin molecule.