NCERT Solutions for Class 11 Biology Body, Fluids & Circulation - 1

Question: 1

The RBCs are destroyed in the liver and _____

Question: 2

Lymphocytes collected in the lymphatic fluid are carried via the arterial blood and are recycled back to the _____

Question: 3

The tunica adventitia of the artery is composed of ______ fibres.

Question: 4

The crocodile has a ______ chambered heart.

Question: 5

The heart is covered by a double membrane called _____

Question: 6

The relaxation of the chambers of the heart is called _____

Question: 7

The ventricular systole is the ______ phase of the cardiac cycle.

Question: 8

_____ is the pressure in the arteries as the chambers of the heart contracts.

Question: 9

Blood pressure is measured using a ______ and a stethoscope.

Question: 10

______ is the respiratory pigment that facilitates the transport of gases.