These Control And Coordination Class 10 MCQ are the most important part of Class 10 NCERT Science Text Book. We already published more standard questions and answers on Control And Coordination.
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Control And Coordination Class 10 MCQ
1. Any change in the environment to which an organism responds is called
a) stimulus
b) coordination
c) response
d) hormone
Answer: a
2. A part of the body which responds to the instructions sent from nervous system is called
a) receptor
b) effector
c) nerves
d) muscles
Answer: b
3. The longest fibre on the cell body of a neuron is called
a) sheath
b) cytoplasm
c) axon
d) dendrites
Answer: c
4. Which nerves transmit impulses from the central nervous system towards muscle cells?
a) Sensory nerves
b) Motor nerves
c) Relay nerves
d) Cranial nerves
Answer: b
5. A microscopic gap between a pair of adjacent neurons over which nerve impulses pass is called
a) neurotransmitter
b) dendrites
c) axon
d) synapse
Answer: d
6. The highest coordinating centre in the human body is
a) spinal cord
b) heart
c) brain
d) kidney
Answer: c
7. Main function of cerebrum is
a) thinking
b) hearing
c) memory
d) balancing
Answer: a
8. Posture and balance of the body is controlled by
a) Pons
b) Medulla oblongata
c) Cerebellum
d) Cerebrum
Answer: c
9. Breathing is controlled by which part of the brain?
a) Cerebrum
b) Cerebellum
c) Hypothalamus
d) Medulla oblongata
Answer: d
10. Which part of nervous system controls the reflex activities of the body?
a) Brain
b) Spinal cord
c) Cerebrum
d) Cerebellum
Answer: b
11. Which of the following acts as both endocrine and exocrine gland?
a) Pancreas
b) Thyroid
c) Adrenal
d) Liver
Answer: a
12. Identify which of the following statements about thyroxin is incorrect?
a) Thyroid gland requires iodine to synthesize thyroxin.
b) Thyroxin is also called thyroid hormone.
c) It regulates protein, carbohydrates and fat metabolism in the body.
d) Iron is essential for the synthesis of thyroxin.
Answer: d
13. Which gland secretes the growth hormone?
a) Pituitary gland
b) Thyroid
c) Hypothalamus
d) Adrenal
Answer: a
14. The secretion of which hormone leads to physical changes in the body when you are 10-12 years of age?
a) Oestrogen from testes and testosterone from ovar.
b) Estrogen from adrenal gland and testosterone from pituitary gland.
c) Testosterone from testes and estrogen from ovary.
d) Testosterone from thyroid gland and estrogen from pituitary gland.
Answer: c
15. A diabetic patient suffers from deficiency of which hormone?
a) Thyroxine
b) Testosterone
c) Oestrogen
d) Insulin
Answer: d
16. Which of the following endocrine glands does not exist in pairs?
a) Testes
b) Adrenal
c) Pituitary
d) Ovary
Answer: c
17. Which of these is not a function of PTH?
a) Reduces calcium ion reabsorption from digested food
b) Increases calcium ion level in blood
c) Stimulates demineralization
d) Stimulates reabsorption of calcium ions in kidneys
Answer: a
18. What is the shape of the thymus gland?
a) Spherical
b) Lobular
c) Irregular
d) Triangular
Answer: b
19. Which of these statements is false about thymus?
a) Differentiation of T-lymphocytes take place here
b) It secretes thymosin
c) It is intact for persons of all ages
d) Promotes production of antibodies
Answer: c
20. Where are the adrenal glands located?
a) Above the kidneys
b) Between the lungs
c) Around the trachea
d) Base of the hypothalamus
Answer: a
21. What is the disease caused by the deficiency of adrenal cortex hormones?
a) Acromegaly
b) Graves’ disease
c) Addison’s disease
d) Diabetes Insipidus
Answer: c
22. Catecholamines are secreted by the ______
a) posterior pituitary
b) anterior pituitary
c) adrenal cortex
d) adrenal medulla
Answer: d
23. Which of these hormones would be rapidly secreted in a man if he was being chased by a dog?
a) Somatostatin
b) Somatotropin
c) Epinephrine
d) Prolactin
Answer: c
24. Which of these is not an effect of catecholamine secretion?
a) Piloerection
b) Pupillary dilation
c) Glycogen formation
d) Increase in heart rate
Answer: c
25. Which of these substances does norepinephrine not stimulate the breakdown of?
a) Glucose
b) Lipids
c) Proteins
d) Glycogen
Answer: a
26. What is the name of the outer layer of the adrenal cortex?
a) Zona reticularis
b) Zona glomerulosa
c) Zona fasciculata
d) Zona pellucida
Answer: b
27. Which of these is not a function of thyroid hormones?
a) Regulation of basal metabolic rate
b) Erythropoiesis
c) Maintenance of electrolyte balance
d) Regulation of diurnal cycle
Answer: d
28. TCT is secreted by the ______
a) hypothalamus
b) pituitary gland
c) thyroid gland
d) adrenal cortex
Answer: c
29. How many parathyroid glands do humans possess?
a) 2
b) 3
c) 4
d) 1
Answer: c
30. Which plant hormone promotes dormancy in seeds and buds?
a) Auxin
b) Gibberellin
c) Cytokinin
d) Abscisic acid
Answer: d
31. Roots of plants are:
a) positively geotropic
b) negatively geotropic
c) positively phototropic
d) None of these
Answer: a
32. Response of plant roots towards water is called:
a) Chemotropism
b) Phototropism
c) Hydrotropism
d) Geotropism
Answer: c
33. Movement of sunflower in accordance with the path of Sun is due to
a) Chemotropism
b) Geotropism
c) Phototropism
d) Hydrotropism
Answer: c
34. Which plant hormone promotes cell division?
a) Auxin
b) Gibberellin
c) Cytokinin
d) Abscisic acid
Answer: c
35. Which hormone is responsible for reabsorption of sodium ions and water?
a) Adrenaline
b) Glucocorticoids
c) Testosterone
d) Aldosterone
Answer: d
36. Which of these hormones generates lipolysis and proteolysis and also inhibits cellular uptake?
a) Insulin
b) Aldosterone
c) Glucocorticoid
d) Glucagon
Answer: c
37. Which hormone is responsible for regulating the osmotic pressure and body fluid volume?
a) Oxytocin
b) Prolactin
c) Aldosterone
d) Glucocorticoids
Answer: c
38. Which type of cells of the Islet of Langerhans are responsible for hyperglycemia?
a) β-cells
b) α-cells
c) δ-cells
d) F cells
Answer: a
39. Corpus luteum is responsible for the secretion of which hormone?
a) Estrogen
b) Progesterone
c) Vasopressin
d) Melatonin
Answer: b
40. Which of these supports pregnancy and stimulates milk secretion?
a) Corpus luteum
b) Ovum
c) Progesterone
d) Estrogen
Answer: c
41. Leydig cells are responsible for the production of ______
a) testosterone
b) estrogen
c) progesterone
d) erythropoietin
Answer: a
42. Which disorder involves the formation of ketone bodies?
a) Graves’ disease
b) Diabetes insipidus
c) Acromegaly
d) Diabetes mellitus
Answer: d
43. Which gland is both endocrine and exocrine?
a) Thyroid gland
b) Adrenal gland
c) Pancreas
d) Parathyroid gland
Answer: c
44. The α-cells in the pancreas secrete which hormone?
a) Somatotropin
b) Somatostatin
c) Insulin
d) Glucagon
Answer: d
45. Which of these hormones stimulates glycogenesis?
a) Glucagon
b) Erythropoietin
c) Insulin
d) Secretin
Answer: c
46. Which of these is not a steroid hormone?
a) Estrogen
b) Progesterone
c) Vasopressin
d) Triiodothyronine
Answer: c
47. The main function of abscisic acid in plants is
a) to promote cell division.
b) to inhibit growth.
c) to promote growth of stem.
d) to increase the length of cells.
Answer: b
48. Fall of mature leaves and fruits from plants is triggered by which of the following substance?
a) Auxin
b) Cytokinin
c) Gibberellin
d) Abscisic acid
Answer: d
49. Which of these structures of heart secrete hormones?
a) Bundle of His
b) Ventricle
c) SA node
d) Atrium
Answer: d
50. Which hormone is secreted by the heart?
a) MSH
b) CCK
c) ANF
d) PRL
Answer: c
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