physiology of plants, humans and animals - Category wise Question and Answer Practice Test with Solutions

Question : 1 [IAS (Pre) 2009]

Consider the following statements.

1. Sweet orange plant is propagated by grafting technique.
2. Jasmine plant is propagated by layering technique.

a) Only 2

b) Both 1 and 2

c) Only 1

d) Neither 1 nor 2

Question : 2

Largest number of neuron cell is present in human body in

a) spinal cord

b) retina

c) brain

d) tongue

Question : 3

Study the following statements:

1. Blue-green algae is not a hype of algae
2. In tree, the growth ring represent secondary xylem.
3. Longest fibres are found in jute.

a) 1 and 2

b) 1 only

c) 2 only

d) 1, 2 and 3

Question : 4

Which of the following disease is not concerned with disorders of circulatory system?

a) Angina

b) Heart failure

c) Coronary artery disease

d) Uremia

Question : 5

Glucagon is secreted by

a) a (alpha) cells of islets of langerhans

b) b (beta) cells of islets of langerhans

c) b cells of pancreas

d) adrenal cortex