NCERT Biology – Endocrine System Most Important MCQs Question and answers

NCERT Biology – Endocrine System Most Important MCQs

Endocrine System MCQs

Question”1 Any cell or tissue which secretes some Chemical is called ——-

1. Hormone
2. Enzyme
3. Juice
4. Gland

Question”2 which of the following is /are exocrine Gland (s)?

1. liver
2. sweat gland
3. salivary gland
4. all of these

Question”3 ——— is a gland with duct.

1. Endocrine gland
2. Exocrine gland
3. pineal gland
4. Pituitary gland

Question”:4 which of the following glands has no duct?

1. mammary gland
2. oil gland
3. mucus gland
4. pineal gland

Question”5 ——– glands are ductless

1. Exocrine
2. endocrine
3. liver and salivary
4. None of these

Question”6 Example (s) of ductless gland is /are –

1. Pituitary gland
2. pineal gland
3. thyroid gland
4. all of these

Question”7 ——– is /are endocrine gland(s)

1. Parathyroid gland
2. thymus gland
3. adrenal gland
4. all of these

Question”8 which of the following is a reproductive endocrine gland in males?

1. Ovaries
2. testes
3. hypothalamus
4. master gland

Question”9 which of the following is a reproductive endocrine gland in females?

1. Pancreas
2. tastes
3. thymus
4. Ovaries

Question”10 which of the following is a mixed gland?

1. liver
2. pineal
3. Pancreas
4. thymus

Question”11 Secretion of endocrine gland is called –

1. Enzyme
2. hormone
3. sweat
4. sebum

Question”12 Secretion of exocrine gland may be –

1. sweat
2. enzyme
3. sebum
4. all of these

Question”13 which of the following is known as a Chemical messenger?

1. sweat
2. enzyme
3. hormone
4. pituitary gland

Question”14 which one of the following is incorrect regarding endocrine gland?

1. it is a ductless gland
2. it is a gland with duct
3. its secretion is called hormone
4. it releases its secretion direct into blood

Question”15 who discovered hormone?

1. watson and Crick
2. Bayliss and starling
3. banting and best
4. Hargovind Khurana

Question”16 The earliest discovered Hormone is –

1. insulin
2. secretin
3. glucagon
4. Oxytocin

Question”17 which of the following endocrine gland is also a part of our nervous system?

1. pituitary gland
2. pineal gland
3. hypothalamus gland
4. thymus

Question”18 which of the following is/are neuroendocrine structure (s)?

1. Pineal gland
2. hypothalamus
3. pineal gland
4. all of these

Question”19 Hormone secreted by ——— is called Neuro -Hormone?

1. Pituitary gland
2. pineal gland
3. heart
4. hypothalamus

Question”20 Synthesis and secretion of pituitary hormone are controlled by ——-

1. Parathyroid
2. thyroid
3. Pancreas
4. hypothalamus

Question”21 (Very Important Question) which of the following Hormone(s) is/are synthesize in hypothalamus while secreted by pituitary?”

1. Somatostatin
2. Oxytocin
3. Gonadotrophin
4. Vasopressin

1. A and B
2. B and C
3. C and D
4. B and D

Question”22 which of the following endocrine (s) is/are present in our brain?

1. hypothalamus
2. pituitary gland
3. pineal gland
4. all of these

Question”23 which of the following is called as master gland?”

1. pituitary
2. pineal
3. hypothalamus
4. thymus

Question”24 Hormone (s) of pituitary gland is/are-

1. Somatotropic or growth hormone (GH)
2. Thyroid stimulating hormone (TSH)
3. Adrenocorticotrophic hormone (ACTH)
4. all of these

Question”25 which of the following is not a function of growth hormone?

1. Growth of muscles
2. growth of bones
3. accumulation of protein and calcium
4. regulate secretion of thyroxin

Question”26 Disorder like” acromegaly occur due to-

1. Lack of GH
2. Excess of GH
3. Lack of Vasopressin
4. Excess of vasopressin

Question”27 which Hormone of pituitary regulate the secretion of thyroid gland?

1. ACTH
2. TSH
3. GnRH
4. LTH

Question”28 (very important Question) ——– Hormone of pituitary control the growth of mammary glands and milk production in them?

1. Somatotrophic
2. Somatostatin
3. Prolactin
4. ADH

Question”29 Other name of Oxytocin hormone is/are –

1. Pitocin
2. Birth hormone
3. love hormone
4. all of these

Endocrine System MCQs

Question”30 which of the following is incorrect related to Oxytocin?

1. In female it contracts the uterine muscles at the time of parturition
2. It stimulates the mammary gland to ejaculate the milk
3. it Produces in hypothalamus but secreted by pituitary
4. it produces in pituitary

Question”31 where does Production of ADH or Vasopressin take place?

1. Pituitary gland
2. pineal gland
3. tastes
4. hypothalamus

Question”32 which is correct regarding ADH or Vasopressin?

1. It reduces water loss with Urine
2. It increase blood pressure by contracting blood vessels
3. it is secreted by pituitary
4. all of these

Question”33 Lack ADH Cause-

1. Diabetes Insipidus
2. Dehydration
3. Polydipsia
4. all of these

Question”34 ——- gland secretes melatonin hormone-

1. Parathyroid
2. Pineal
3. Ovary
4. Tastes

Question”35 Not a function of Melatonin-

1. It control our sleep-wake cycle
2. It forms melanin pigment in the skin of lower animal
3. it make colourful skin in lower animal
4. it stimulates Urine loss in human

Question”36 which is the largest gland in our body?

1. Thyroid
2. pancreas
3. liver
4. Ovary

Question”37 which is the second largest gland in our body?

1. Tastes
2. Ovary
3. Pancreas
4. thyroid

Question”38 which is the largest endocrine gland in our body?

1. Pancreas
2. thymus
3. thyroid
4. pituitary

Question”39 which is the smallest gland in our body?

1. liver
2. thyroid
3. Pituitary
4. salivary gland

Question”40 which is incorrect regarding Islets of Langerhans?

1. It is the exocrine part of pancreas
2. it is the endocrine part of pancreas
3. it secretes insulin hormone
4. it secrets the glucagon hormone

Question”41 which of the following cell is not found in” Islets of Langerhans?

1. alpha cell
2. beta cell
3. delta cell
4. acinar cell

Question”42((very important Question) which is incorrect match regarding hormones secreted by pancreas?

1. alpha cell — Glucagon
2. beta cell — Insulin
3. Delta cell — somatostatin
4. acinar cell — Insulin

Question”43 which Hormone converts excess glucose (sugar) to glycogen in our body?

1. insulin
2. Glucagon
3. Cholesterol
4. thyroxin

Question”44 Hormones which control the blood sugar in us-

1. insulin
2. somatostatin
3. both A and d
4. Glucagon

Question”45 During fasting normal blood sugar level in humans per 100 ml of blood is-

1. 20 –50 mg
2. 50 — 70 mg
3. 80 –100 mg
4. 120 –140 mg

Question”46 Deficiency of insulin in our body causes-

1. Diabetes
2. Glycosuria
3. delay wound heeling
4. all of these

Question”47 Low blood sugar in our body causes-

1. Goitre
2. hypoglycaemia
3. Gigantism
4. dwarfism

Question”48 In which form food (carbohydrates ) are stored in animals?

1. starch
2. Glycogen
3. Glucose
4. amino acid

Question”49 which hormone coverts Glycogen into Glucose?

1. insulin
2. pepsin
3. trypsin
4. Glucagon

Question”50 Function of Somatostatin hormone secreted by pancreas is –

1. It increase the level of blood sugar
2. It decrease the level of blood sugar
3. It Supresses the secretion of insulin and Glucagon
4. It controls the calcium level in blood

Answers

Question No	Answer	Question No	Answer
1	D	26	B
2	D	27	B
3	B	28	C
4	D	29	D
5	B	30	D
6	D	31	D
7	D	32	D
8	B	33	D
9	D	34	B
10	C	35	D
11	B	36	C
12	D	37	C
13	C	38	C
14	B	39	C
15	B	40	A
16	B	41	D
17	C	42	D
18	B	43	A
19	D	44	C
20	D	45	C
21	D	46	D
22	D	47	B
23	A	48	B
24	D	49	D
25	D	50	C