Q. No.Assertion : In mollusca, circulatory system is of closed type.
Reason : The blood of mollusca contains haemoglobin
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Assertion : Histamine is involved in allergic and inflammatory reactions.
Reason : Histamine is a vasodilator
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Assertion : Closed circulatory system is more effective than open type.
Reason : The closed circulatory system considerably enhances the speed, precision and efficiency of circulation.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
| Assertion: | Cardiac output rises during exercise. |
| Reason: | Cardiac output helps in less oxygen consumption. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
| Assertion: | EEG is of immense diagnostic value in the cardiac diseases. |
| Reason : | Defects in cardiac functions can be reflected in changes in the pattern of electrical potentials recorded in the EEG. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Assertion : Heart of fish contains only deoxygenated blood.
Reason : Oxygenated blood do not return back to the heart in fishes.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Assertion : Blood flows at a very slow velocity in the lacunae and sinuses of prawn.
Reason : This happens because of the absence of heart in the prawn.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
| Assertion: | The increased permeability of the lymph capillaries is easily altered. |
| Reason: | The increased permeability of the capillary walls leads to oedema or swelling. |
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Assertion: Electrocardiogram is record or electrical activity of the heart which shows certain waves called P, Q, R, S and T waves.
Reason: It gives important information concerning the spread of excitation to the different parts of heart and it is of value in the diagnosis of cases of abnormal cardiac rhythm and myocardial damage.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Assertion : Total count of RBC comes out to be very low in polycythemia.
Reason : Number of erythrocytes get reduced in the condition of polycythemia.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
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