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Chapter:

90+ Chemical Coordination and Control Solved MCQs

in Biology

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: All India Pre Medical Test (AIPMT) .

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Chapter: Chemical Coordination and Control
1.

By which structure, hypothalamus is connected with anteriore lobe of pituitary gland?

A. Dendrites of neurohypophysi
B. Axons of neurohypophysis
C. Bands of white fibres from cerebellar region
D. Hypophysial portal system
Answer» D. Hypophysial portal system
discuss
2.

What does “a” indicate in the given diagram?

A. Arterial circulaton
B. Portal circulation
C. Hypothalamus glomerulus
D. None of the given
Answer» C. Hypothalamus glomerulus
discuss
3.

If secretary cells of GHRH are damaged then ......

A. The process of cell division will be adversely affected
B. Urine amount will increase
C. Sugar level in blood increases
D. ADH secretion will increase
Answer» A. The process of cell division will be adversely affected
discuss
4.

Pituitary gland is located in a, which is b of c bone?

A. a = Sella turcica b = Raised surface c = Ethmoid
B. a = Reketh’s pauch b = Depression c = Nasal
C. a = Sella turcica b = Depression c= Sphenoid
D. a = Reketh’s pauch b = Depression
Answer» C. a = Sella turcica b = Depression c= Sphenoid
discuss
5.

Which of the following is not effect of GH?

A. Dwarfism
B. Cretinism
C. Development of all tissue
D. Giantism
Answer» B. Cretinism
discuss
6.

Which of the following is correct for somatotropic hormone?

A. Less secretions of it causes Giantism
B. More secretion of it causes Dwarfism
C. Optimal secretion of it can retards protein synthesis
D. In adult, its more secretion causes enlargement of lower jaw
Answer» D. In adult, its more secretion causes enlargement of lower jaw
discuss
7.

Write full form of ACTH?

A. Adrenal Cortical Tropic hormone
B. Adrenocortico Target hormone
C. Adrenocortex Tropic hormone
D. Adrenocortico Tropic hormone
Answer» D. Adrenocortico Tropic hormone
discuss
8.

Which of the following option indicates correctly matched pairs for the column I and column II
Column I Column II
(p) PH (i) Contraction of smooth muscles of body
(q) LH (ii) Secretion of Glucocorticoids
(r) ACTH (iii) Secretion of milk after delivery
(s) Oxytocin (iv) Secretion of male sex hormone

A. (p - i) (q- ii) (r - iii) (s - iv)
B. (p - iii) (q- iv) (r - ii) (s - i)
C. (p - ii) (q- iii) (r - iv) (s - i)
D. (p - iii) (q- iv) (r - i) (s - ii)
Answer» B. (p - iii) (q- iv) (r - ii) (s - i)
discuss
9.

Which of the following are effects of Vasopressin?

A. Incresed glucose level
B. High BMR
C. Accumulation of fat under skin
D. Reabsorption of water and electrolytes
Answer» D. Reabsorption of water and electrolytes
discuss
10.

Which of the following option is correct for the location of pineal gland?

A. Under corpus callosum and between cerebral hemisphere
B. Above corpus callosum and between cerebral hemisphere
C. Under corpus collosum and between cerebellar hemisphere
D. Lateral to cerebellar hemisphere
Answer» A. Under corpus callosum and between cerebral hemisphere
discuss
11.

Which hormone regulate 24-hr rhythm of our body?

A. Somatotropic
B. LTH
C. Melatonin
D. T4 and T3
Answer» C. Melatonin
discuss
12.

It is correct for the function of pineal gland?

A. To maintain ovarian follicle
B. Self defense capability
C. To maintain mineral ions in body
D. Loss of water from body
Answer» B. Self defense capability
discuss
13.

It stimulates reabsorption of water from distal tubule of kidney

A. ADH
B. Oxytocin
C. Glucagon
D. None of the given
Answer» A. ADH
discuss
14.

Which cells are present on the wall of thryoid follicle?

A. Squamou
B. Cuboidal
C. Columnar
D. Ciliated squamous
Answer» B. Cuboidal
discuss
15.

Which of the following shows abnormality in skin, stunted growth and deaf-mutism?

A. Exophthalmic goiter
B. Hypothrodism, myxoadema
C. Hypothrodism, cretinism
D. Hyperthrodism, cretinism
Answer» B. Hypothrodism, myxoadema
discuss
16.

Which of the following causes formation of osteoblast?

A. Thyroxine
B. PTH
C. Thyrocalcitonin
D. T3
Answer» C. Thyrocalcitonin
discuss
17.

What is cause of exophthalmic goiter?

A. Less secretion of thyroid
B. Under secretion of parathyroid
C. Oversecretion of parathroid
D. Oversecretion of thyroid
Answer» D. Oversecretion of thyroid
discuss
18.

a and b hormones together maintain Ca+2 level of body?

A. PTH and TCT
B. PTH and aldosterone
C. TCT and ADH
D. T3 and T4
Answer» A. PTH and TCT
discuss
19.

Which of the folllowing disorder occurs due to deficiency of ADH?

A. Diabetes incipidu
B. Diabetes mellitus
C. Highly concentrated urine formation
D. Rapid reabsorbtion of nutrient
Answer» A. Diabetes incipidu
discuss
20.

It is required for differentiation of T-cells?

A. T3
B. Thymosin
C. T4
D. Melatonin
Answer» B. Thymosin
discuss
21.

Which hormone is secreted by Zona fasciculata?

A. ADH
B. Mineralocorticoids
C. Glucocorticoids
D. Hydrocorticoids
Answer» C. Glucocorticoids
discuss
22.

Which hormone’s secretion increases in emergency?

A. Thyroxine
B. Parathormone
C. Adrenaline
D. Aldosterone
Answer» C. Adrenaline
discuss
23.

Which of the following secretes mineralocorticoids?

A. Zona glomerulosa
B. Zona Reticularis
C. Zona Fasciculata
D. Adrenal medulla
Answer» A. Zona glomerulosa
discuss
24.

Which of the following stimulates adrenal gland in an emergency?

A. Adrenal medulla
B. CNS
C. PNS
D. Mid-brain
Answer» B. CNS
discuss
25.

Under secretion of which hormone can cause diabetes mellitus?

A. Vasopressin
B. ADH
C. Aldesterone
D. Insulin
Answer» D. Insulin
discuss
26.

Which disease occurs due to less secretion of mineralocorticoids?

A. Addison’s disease
B. Cretinism
C. Myxodema
D. Cushing diseases
Answer» A. Addison’s disease
discuss
27.

Which hormone increases blood calcium level?

A. Thyroxine
B. Thyrocalcitonin
C. PTH
D. All of the above
Answer» C. PTH
discuss
28.

Which gland atrophies after puberty?

A. Thymu
B. Thyroid
C. Parathyroid
D. adrenal
Answer» A. Thymu
discuss
29.

Secretion of which of the following is necessary for increase in uptake of glucose by liver and adipose cells ?

A. Alpha cell of islet of Langerhans
B. Beta cell of islet of Langerhans
C. delta cells
D. B cells of pancreatic acini
Answer» B. Beta cell of islet of Langerhans
discuss
30.

Which of the following hormones are concerned with osmoregulation?

A. ADH and thyroxine
B. Aldosterone and Oxytocin
C. Oxytocin and Glucocorticoids
D. All cortisols
Answer» A. ADH and thyroxine
discuss
31.

Which hormone regulates colour of skin?

A. MSH
B. LH
C. PTH
D. LTH
Answer» A. MSH
discuss
32.

Which of the following hormone is not secreted under influnce of pituitary gland?

A. Thyroxine
B. Aldosterone
C. Oestrogen
D. Glucocorticoids
Answer» B. Aldosterone
discuss
33.

What is full form of FSH.

A. Follicular Stimulating Hormone.
B. Follicle Stimular Hormone.
C. Follicle Stimulating Hormone.
D. Follicular Stimular Hormone.
Answer» C. Follicle Stimulating Hormone.
discuss
34.

It causes glycogenesis?

A. Glucogen
B. Insulin
C. Melatonin
D. Somatostatin
Answer» B. Insulin
discuss
35.

What is related to region lablelled as "a" in the diagram?

A. TCT
B. TSH
C. PTH
D. LH
Answer» C. PTH
discuss
36.

Which option shows correct path of Libido expression?

A. Leydig’s cells Androgensympathetic nervous systemLibido
B. AndrogenLeydig’s cellPNSLibido
C. Leydig’s cell AndrogenCNSLibido
D. Epithelial cells and semini Ferous tubuleAndrogenCNS Libido
Answer» C. Leydig’s cell AndrogenCNSLibido
discuss
37.

Which hormone regulates production of sperms?

A. LH
B. LTH
C. FSH
D. All of the given
Answer» C. FSH
discuss
38.

Which of the following is not primary endocrine gland?

A. Adrenal medulla
B. Parathyroid gland
C. Thymus
D. Corpus luteum
Answer» D. Corpus luteum
discuss
39.

Which hormone stimulates formation of alveoli in mammary gland?

A. Oestrogen
B. Progesterone
C. Relaxin
D. Oxytocin
Answer» B. Progesterone
discuss
40.

Who secrete ANF?

A. Juxta glomerular appratu
B. Atrial wall of heart
C. Outer wall of stomac
D. Ventricular wall of heart
Answer» B. Atrial wall of heart
discuss
41.

What is full form of ANF?

A. Atrial Natriuretic factor
B. Atrial Natural Factor
C. Anti Natriuretic Factor
D. Anti Nutrient Factor
Answer» A. Atrial Natriuretic factor
discuss
42.

Find the odd (In terms of source )

A. ANF
B. Vasopressin
C. Adrenaline
D. Aldosterone
Answer» A. ANF
discuss
43.

Which of the following option indicates correctly matched group?

A. CCK- Wall of duodenum-Relaxation of gall bladder
B. JGA- Erythropoietin-Formation of R.B.C.
C. JGA- Etrythropoietin-Degradation of R.B.C.
D. GIP- Gastro- Intestinal- Stimulates gastric secretion
Answer» B. JGA- Erythropoietin-Formation of R.B.C.
discuss
44.

Which of the following is not effect of cathecholamine?

A. Sweating
B. Warm red face
C. Increase in blood sugar level
D. Decreased hear beat
Answer» D. Decreased hear beat
discuss
45.

What are hormone receptors chemically?

A. Protein
B. Steroid
C. Polysaccharide
D. Phospholipid
Answer» A. Protein
discuss
46.

Which of the following is not secondary messanger?

A. AMP
B. IP3
C. Ca+2
D. T4
Answer» D. T4
discuss
47.

Which of the following glands hormone effects functioning of menstrual cycle?

A. Pineal
B. Thyroid
C. Ovary
D. All of the given
Answer» D. All of the given
discuss
48.

Which part of following secretes LH.RH?

A. Pars nervosa
B. Hypothalamus
C. Pars intermedia
D. Pars distalis
Answer» B. Hypothalamus
discuss
49.

Which of the following is called hypercalcemic hormone

A. PTH
B. Thyroxine
C. TCT
D. All of the given
Answer» A. PTH
discuss
50.

It is steroid hormone of thyroid

A. T3
B. TCT
C. T4
D. None of the given
Answer» D. None of the given
discuss

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