Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 
 

Assertion (A):	Oxidized hemoglobin carries maximum oxygen in the human blood.
Reason (R):	Oxidized hemoglobin has more affinity for oxygen than deoxygenated hemoglobin.

In the light of the above statements choose the correct answer from the options given below:

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

Assertion: Nitric oxide transport by hemoglobin to peripheral tissues is hypothesized to assist oxygen transport in tissues.
Reason: Nitric oxide can also be transported by hemoglobin bound to specific thiol groups in the globin protein.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Small amounts of CO dramatically reduces hemoglobin's ability to transport oxygen.
Reason: CO competes with oxygen at the heme binding site.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

In the light of the above statements choose the correct answer from the options given below:

Assertion: Oxygenation of blood in the lungs displaces carbon dioxide from hemoglobin which increases the removal of carbon dioxide.
Reason: Oxygenated hemoglobin is a better proton donor than deoxygenated hemoglobin.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Chloride concentration is higher in systemic venous blood than in systemic arterial blood.
Reason: The rise in intracellular bicarbonate in RBCs leads to bicarbonate intake and chloride export.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: The medulla oblongata uses CSF pH as an indicator of blood carbon dioxide concentration.
Reason: Carbon dioxide is the main determinant of the pH of the CSF:

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
 

In the light of the above statements choose the correct answer from the options given below:
 

Assertion: Rarely, emphysema may be caused by the deficiency of the enzyme Alpha 1 antitrypsin deficiency.
Reason: Deficiency of alpha-1 antitrypsin leads to a chronic uninhibited tissue breakdown.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 

In the light of the above statements choose the correct answer from the options given below: