Consider the given two statements:
Assertion (A): All living organisms retain the enzymatic machinery to partially oxidise glucose without the help of oxygen.
Reason (R): The first cells on this planet lived in an atmosphere that lacked oxygen.
 
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. (A) is False but (R) is True.
 
Subtopic:  Introduction |
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Consider the given two statements:
Assertion (A): ATP acts as the energy currency of the cell.
Reason (R): ATP is a ribonucleoside triphosphate.
 
1. Both (A) and (R) are True and (R) explains (A).
2. (A) is True but (R) is False.
3. Both (A) and (R) are True but (R) does not correctly explain (A).
4. (A) is False but (R) is True.
Subtopic:  Introduction |
From NCERT
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