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Control and Coordination Class 10 MCQs Questions with Answers
Question 1.
The gap between two neurons is called a:
(a) dendrite
(b) synapse
(c) axon
(d) impulse
Answer:
(b) synapse
Question 2.
The brain is responsible for:
(a) thinking
(b) regulating the heart beat
(c) balancing the body
(d) all of the above
Answer:
(d) all of the above
Question 3.
Which of the following is a plant hormone:
(i) insulin
(b) thyroxin
(c) oestrogen
(d) cytokinin
Answer:
(d) cytokinin
Question 4.
Which endocrine gland is called master gland:
(a) pituitary
(b) adrenal
(c) thyroid
(d) pancreas
Answer:
(a) pituitary
Question 5.
Cartisons are secreted by:
(a) pancreatic gland
(b) adrenal gland
(c) thyroid gland
(d) pituitary gland
Answer:
(b) adrenal gland
Question 6.
Female sex hormone is:
(a) estrogen
(b) androgen
(c) insulin
(d) adrenalin
Answer:
(a) estrogen
Question 7.
Insulin is secreted by:
(a) stomach
(b) liver
(c) pancreas
(d) kidney
Answer:
(c) pancreas
Question 8.
In case of emergency which structure becomes very active:
(a) adrenal medulla
(b) adrenal cortex
(c) thyroid gland
(d) pancreas
Answer:
(a) adrenal medulla
Question 9.
Growth, mental development and tissue differentiation is controlld by:
(a) glucagon
(b) parathormone
(c) thyroxine
(d) cortisol
Answer:
(c) thyroxine
Question 10.
Heart beat is increased by:
(a) thyroxine
(b) adrenalin
(c) gastrin
(d) glucagon
Answer:
(b) adrenalin
Question 11.
Hyposecretion of insulin causes:
(a) hypocalcemia
(b) diabetes mellitus
(c) hypercalcemia
(d) irregular growth.
Answer:
(b) diabetes mellitus
Question 12.
Growth hormone is produced in:
(a) gonads
(b) thyroid
(c) pituitary
(d) adrenal
Answer:
(c) pituitary
Question 13.
Which gland is both exocrine and endocrine ?
(a) liver
(b) thyroid
(c) pituitary
(d) pancreas
Answer:
(d) pancreas
Question 14.
Progesterone is secreted by:
(a) testes
(b) thyroid
(c) pituitary
(d) ovary
Answer:
(d) ovary
Question 15.
Glycogen is converted into glucose by:
(a) glucose kinase
(b) glucagon
(c) insulin
(d) calcitonin
Answer:
(b) glucagon
Question 16.
Oxytocin is secreted by:
(a) males
(b) both males and females
(c) females
(d) only by pregnant women
Answer:
(c) females
Question 17.
Islets of Langerhans are found in:
(a) spleen
(b) pancreas
(c) liver
(d) pituitary gland.
Answer:
(b) pancreas
Question 18.
Goitre is due to the hyposecretion of:
(a) thyroxine
(b) calcitonin
(c) prolaction
(d) insulin
Answer:
(a) thyroxine
Question 19.
Hormone secreted by the testes is:
(a) testosterone
(b) progesterone
(c) insulin
(d) T.S.H
Answer:
(a) testosterone
Question 20.
Junction between two neurons is:
(a) callus
(b) synapse
(c) monosystem
(d) homeostasis
Answer:
(b) synapse
Question 21.
Unit of impulse transmission is:
(a) neuron
(b) nervous system
(c) brain
(d) spinal cord
Answer:
(a) neuron
Question 22.
The largest part of the brain is:
(a) cerebrum
(b) cerebellum
(c) medulla
(d) mid-brain
Answer:
(a) cerebrum
Question 23.
Part of the brain which controls respiration and heart beat is:
(a) medulla
(b) cerebellum
(c) diencephalon
(d) cerebrum
Answer:
(a) medulla
Question 24.
In human body, which part of the brain controls the feeling of pleasure, sex and anger:
(a) cerebrum
(b) diencephalon
(c) cerebellum
(d) medulla oblongata
Answer:
(b) diencephalon
Question 25.
Example of reflex action is:
(a) heart beat
(b) blood circulation
(c) sneezing
(d) all these
Answer:
(c) sneezing
Question 26.
Phototropism is regulated by:
(a) auxin
(b) gibberellin
(c) cytokinin
(d) ethylene
Answer:
(a) auxin
Question 27.
Germination of seed is regulated by:
(a) auxin
(b) gibberellin
(c) cytokinin
(d) ethylene
Answer:
(b) gibberellin
Question 28.
Fruit ripening is regulated by:
(a) auxin
(b) gibberellin
(c) cytokinin
(d) ethylene
Answer:
(d) ethylene
Question 28.
Deficiency of which hormone causes diabetes ?
(a) insulin
(b) gastrin
(c) relaxin
(d) extrogen
Answer:
(a) insulin
Question 29.
Name of the hormone which is secreted by testes of man are:
(a) adrenaline
(b) insulin
(c) testosterone and endosterone
(d) none of these
Answer:
(c) testosterone and endosterone
Question 30.
Which is a plant harmone in following:
(a) Insulin
(b) Thyroxin
(c) Astrogen
(d) Cytokinin
Answer:
(c) Astrogen
Question 31.
Pituitary gland is found on:
(a) ventral side of brain
(b) dorsal side of brain
(c) cerebellum
(d) cerebrum
Answer:
(a) ventral side of brain
Question 32.
Hormone insulin is produced by:
(a) pineal gland
(b) thyroid gland
(c) pancreas
(d) pituitary gland
Answer:
(c) pancreas
Question 33.
If reflex action is not according in a man which part of his nervous systen is damaged:
(a) cerebrum
(b) cerebellum
(c) spinal cord
(d) medulla oblongata
Answer:
(d) medulla oblongata
Question 34.
Name the harmone which is utilized to produce seedless fruit without fertilization:
(a) ethylene
(b) gibberellins
(c) auxins
(d) none of there
Answer:
(c) auxins
Question 35.
Non-directional plant movements are called:
(a) Nastic movements
(b) Tropic movements
(c) Cyclosis
(d) Tactic movements
Answer:
(a) Nastic movements
Question 36.
The correct order of sequence in a reflex arc is:
(a) Receptor → sensory neuron Motor neuron → Muscle
(b) Receptor Motor neuron → sensory neuron → Muscle
(c) sensory neuron → Receptor → Motor neuron Muscle
(d) Muscle → Receptor cells → Motor neuron → sensory neuron
Answer:
(a) Receptor → sensory neuron Motor neuron → Muscle
Question 37.
The use of iodised salt is recommanded to prevent:
(a) diabetes
(b) tetany
(c) goitre
(d) hypertension
Answer:
(c) goitre
Question 38.
Out of the following which gland is both endocrine and exocrine in function ?
(a) Pancreas
(b) Pituitary
(c) Thymus
(d) Thyroid
Answer:
(a) Pancreas
Question 39.
The mixed gland found in humans is:
(a) pancreatic gland
(b) thyroid gland
(c) pituitary gland
(d) adrenal gland
Answer:
(a) pancreatic gland
Question 40.
Master gland of the body is:
(a) thyroid
(b) adrenal
(c) penial
(d) pituitary
Answer:
(d) pituitary
Question 41.
Made up of only nucleic acid and proteins are:
(a) Bacteria
(b) Chloroplast
(c) Viruses
(d) Prions
Answer:
(c) Viruses
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