Science (English Medium) Class 11 - CBSE Question Bank Solutions

Name the organs of respiration in the following organisms:

Birds - ______

Name the organs of respiration in the following organisms:

Frog - ______

Name the organs of respiration in the following organisms:

Cockroach - ______

Name the blood component which is viscous and straw-coloured fluid.

Complete the missing word in the statement given below:

Plasma without ______ factors is called serum.

State the functions of the following in blood.

Fibrinogen

State the functions of the following in blood

Globulin

Write the features that distinguish between the two.

Plasma and Serum

The following substances are the excretory products in animals. Choose the least toxic form among them?

The pH of human urine is approximately ______.

What are the main processes of urine formation?

Sort the following into actively or passively transported substances during reabsorption of GFR.

glucose, amino acids, nitrogenous wastes, Na+, water

Complete the following:

Urinary excretion = Tubular reabsorption + Tubular secretion –

The composition of glomerular filtrate and urine is not same. Comment.

How does tubular secretion help in maintaining ionic and acid-base balance in body fluids?

Macrophages and leucocytes exhibit ______.

Name the cells/tissues in human body which exhibit ameboid movement

Name the cells/tissues in human body which exhibit ciliary movement

Locomotion requires a perfect coordinated activity of muscular, ______, ______ systems.

Name the phase of the cell cycle at which the following event occurs:

Chromosomes are moved to spindle equator.