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Question-1
Which of the following is a mis-matched pair?

(A) adrenaline : pituitary gland	(B) estrogen : ovary
(C) pancreas : insulin	(D) progesterone : ovary

Question-2
Which of the following is a plant hormone?

(A) Insulin	(B) Thyroxine
(C) Oestrogen	(D) Cytokinin

Question-3
Blinking of eyes is an example of

(A) diseases	(B) habit
(C) reflex action	(D) response

Question-4
All the voluntary actions of our body are controlled by:

(A) cerebrum	(B) cerebellum
(C) pons	(D) medulla

Question-5
Input and output nerves meet at:

(A) Brain	(B) Spinal cord
(C) Muscles	(D) Heart

Question-6
When the leaves of a Mimosa pudica plant are touched with a finger, they fold up quickly. This is an example of:

(A) chemotropism	(B) thigmonasty
(C) photonasty	(D) thigmotropism

Question-7
The gustatory receptors of our body are in one of the following organs. This organ is :

(A) ear	(B) nose
(C) tongue	(D) skin

Question-8
Dwarfism results due to

(A) excess secretion of thyroxine	(B) less secretion of growth hormone
(C) less secretion of adrenaline	(D) excess secretion of growth hormone

Question-9
The other name of movements independent of growth is:

(A) Nastic movements	(B) Non-directional
(C) Tropic	(D) Both (a) and (b)

Question-10
Most of the plant hormones promote plant growth. A plant hormone which inhibits growth is:

(A) abscisic acid	(B) ethene
(C) ascorbic acid	(D) cytokinin

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Std 10

CBSE

Practice in Related Chapters
How do Organisms Reproduce?
Heredity and Evolution
Management of Natural Resources
Our Environment
Control and Coordination
Life Processes