Free Body Fluids And Circulation (Daily Quiz: 11) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Clotting of blood is to

(a) slow down the movement of blood inside the blood vessels.

(b) seal up wounds and prevent blood loss.

(c) trap oxygen inside the blood so that it can be carried around more easily.

(d) trap harmful germs inside the blood and prevent them from harming the body.

Question-2

Mark the incorrect statement regarding normal ECG.

(a) ‘T’ wave represents atrial repolarization.

(b) Patient is connected to 3 electrical leads (one to each wrist and to the left ankle).

(c) Q marks the beginning of ventricular systole.

(d) R represents ventricular depolarization.

Question-3

Assertion :
WBCs accumulate at the site of wounds by diapedesis.
Reason :
It is squeezing of leucocytes from endothelium.

(a) If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.

(b) If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.

(c) If Assertion is true but Reason is false.

(d) If both Assertion and Reason are false.

Question-4

The antibodies are

(a) carbohydrates

(b) germs

(c) proteins

(d) lipids

Question-5

First heart sound (LUBB) coincides with which wave of ECG?

(a) T-wave

(b) R-wave

(c) P-wave

(d) Q-wave