CBSE Class 10 - Science - CH 8. CONTROL AND COORDINATION

CONTROL AND COORDINATION

MCQs

Q1: The plant hormone which is essential for cell division is:

(a) Auxin
(b) Cytokinin
(c) Ethylene
(d) Gibberellin


Q2: The gap between two neurons is called _____

(a) Synapse
(b) Axon
(c) Synthesise
(d) Dendron


Q3: A potted plant is kept in a room. It starts to bend towards the direction of light. This type of movement is known as

(a) Photographism
(b) Photoperiodism
(c) Phototropism
(d) Photocynism


Q4: Tropic movements are

(a) in response to light
(b) in response to gravity
(c) non-directional
(d) unidirectional




Q5: ____________ is a growth inhibitor hormone in plants

(a) Auxin
(b) Cytokinin
(c) Abscicic acid
(d) Gibberellic acid


Q6: Part of the brain that controls respiration, heart beat and peristalsis us

(a) Medulla Oblongata
(b) Pons
(c) Cerebrum
(d) Cerebellum


Q7: The direction of impulse in a typical neuron is

(a) Axon to dendron
(b) Dendron to axon
(c) Both (a) and (b)
(d) None of these


Q8: Which body organ is surrounded by meninges

(a) Brain and Spinal cord
(b) Brain and Heart
(c) Spinal Cord and Lungs
(d) Heart and Lungs


Q9: Gustatory receptors are specialized in detecting ______

(a) Taste
(b) light
(c) Smell
(d) Touch


Q10: The seat of intelligence and voluntary actions in the brain is

(a) Cerebellum
(b) Cerebrum
(c) Medulla Oblongata
(d) Diencephalon


Answers:
1: (b) Cytokinin
2: (a) Synapse
3: (c) Phototropism
4: (d) unidirectional
5: (c) Abscicic acid
6: (a) Medulla Oblongata
7: (b) Dendron to axon
8: (a) Brain and Spinal cord
9: (a) Taste
10: (b) Cerebrum