NEET Biology MCQ - Chemical Coordination And Regulation Mcq - Quiz-11 Solution

Q.1.

Which of the following hormone follows mechanism shown in the diagram

46%
a) Insulin
31%
b) Glycogon
15%
c) Adrenaline
8%
d) Progesterone

Explanation

Q.2.

Secretion of which hormone; if decreases can cause addission’s disease?

23%
a) oxytocin
23%
b) TCT
23%
c) PTH
31%
d) ACTH

Explanation

Q.3.

Match the list-I with list-II

list-I	list-II
p. adenohypophysis	i. epinephrine
q. adrenal medulla	ii. somatotropin
r. Parathyroidgland	iii. thymosin
s. thymus gland	iv. calcitonin

33%
a) (p : iv), (q : iii), (r : ii), (s : i)
22%
b) (p: iii), (q : i), (r : iv), (s : ii)
11%
c) (p : i), (q: ii), (r : iii), (s : iv)
33%
d) (p : ii), (q : i), (r : iv), (s : iii)

Explanation

Q.4.

Neurohypophysis is under the direct regulation of:

0%
a) Pars intermedia.
30%
b) Pars nervosa.
30%
c) Pars distalis.
40%
d) Hypothalamus.

Explanation

Q.5.

Neurotransmitter which controls the release of prolactin:

22%
a) Somatostatin.
11%
b) Serotonin.
56%
c) GABA.
11%
d) Dopamine.

Explanation

Q.6.

Given below is an incomplete table about certain hormones, their source glands and one major effect on the body in humans. Identify the correct options for the blanks (i) – (iii).

Gland	Secretion	Effect on body
(i)	Oestrogen	Maintenance of secondary sexual characters.
Alpha cells of islets of Langerhans	(ii)	Raises blood sugar level
Anterior pituitary	(iii)	Over secretion leads to gigantism

22%
a) (i) – Placenta, (ii) – Insulin, (iii) – Vasopressin.
33%
b) (i) – Ovary, (ii) – Insulin, (iii) – Calcitonin.
22%
c) (i) – Placenta, (ii) – Glucagon, (iii) – Calcitonin.
22%
d) (i) – Ovary, (ii) – Glucagon, (iii) – Growth hormone.

Explanation

Q.7.

Erythropoetic hormones is/are:

0%
a) Thyroxine.
11%
b) Cortisol.
78%
c) Erythropoietin.
11%
d) All of these.

Explanation

Q.8.

Ca2+ level in body is controlled by:

11%
a) Adrenal gland.
22%
b) Parathyroid gland.
22%
c) Thyroid gland.
44%
d) Both (B) and (C).

Explanation

Q.9.

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

11%
a) Thyroid
67%
b) Ovary
11%
c) Pineal
11%
d) All of the given

Explanation

Q.10.

Several statements are given in reference with thyroid gland; which of the given option shows all wrong statements for thyroid gland Statements (i) It inhibits process of R.B.C. formation (ii) It helps in maintenance of water and electrolytes (iii) Its more secretion can reduce blood pressure (iv) It Stimulates osteoblast

33%
a) (i) and (ii)
0%
b) (iii) and (iv)
44%
c) (i) and (iv)
22%
d) (i) and (iii)

Explanation

Q.11.

Which part of following secretes LH.RH?

0%
a) Pars distalis
12%
b) Pars intermedia
12%
c) Pars nervosa
75%
d) Hypothalamus

Explanation

Q.12.

Which of the following is not effect of catecholamine?

12%
a) Sweating
12%
b) Warm red face
50%
c) Increase in blood sugar level
25%
d) Decreased hear beat

Explanation

Q.13.

Which of the following is not peptide protein hormone?

11%
a) Glucogon
33%
b) Insulin
22%
c) FSH
33%
d) Estradiol

Explanation

Q.14.

Which of the following option is correct for the correctly matched groups of column I , column II and column III ?

Column I(Name of glands)	Column II(Name of hormones)	Column III Column III
(a) Posterior pituitary	(i) Relaxin	(f) Regulate carbohydrate metabolism.
(b) Adrenal medulla	(ii) Catecholamines	(g) Milk secretion from mammary gland
(c) parathyroid	(iii) Glucocortecoids	(h) Decrease Ca⁺² absorption from food
(d) Ovary	(iv)Oxytocin	(i)Increases Ca⁺² absorption from food
(e) Adrenal cortex	(v)PTH	(j) Relax cervix of the uterus
		(k) Pupillary dilation

17%
a) (a - iv - j), (b - ii - j), (c - iii - k), (d - u - f), (e - i - h)
17%
b) (a - iv - i), (b - ii - f), (c - iii - j), (d - u - k), (e - i - h)
67%
c) (a - iv - j), (b - ii - i), (c - iii - j), (d - u - k), (e - iii - h)
0%
d) (a - iv - g), (b - ii - k), (c - v - i), (d - i - j), (e - iii - f)

Explanation

Q.15.

The humoral immunity and cell mediated immunity is related with which of the following gland:

0%
a) Adrenal gland.
12%
b) Pineal gland.
38%
c) Thyroid gland.
50%
d) Thymus gland.

Explanation

Q.16.

The cells which secrete the male sex hormone testosterone are:

0%
a) Lieberkuhn.
17%
b) Crypt cells.
17%
c) Islets of Langerhans
67%
d) Leydig cells

Explanation

Q.17.

A hormone _____which acts on ____ of nephron and helps in resorption of water and electrolytes.

29%
a) ADH, Loop of Henle.
14%
b) ADH, PCT.
29%
c) ADH, DCT.
29%
d) ADH, Collecting Duct.

Explanation

Q.18.

Select the false statement:

0%
a) Pituitary is attached to hypothalamus by a stalk called infundibulum.
40%
b) Trophic hormones are secreted by different cells of pars distalis.
40%
c) Adenohypophysis consists of pars distalis and pars intermedia.
20%
d) Pars intermedia releases the hormones MSH, oxytocin and ADH.

Explanation

Q.19.

Oestrogen and testosterone are steroid hormones, and are most likely bind to

20%
a) Membrane ions cannels
40%
b) Enzyme-lined membrane receptors
0%
c) G-protein linked membrane receptors
40%
d) Cytoplasmic receptors

Explanation

Q.20.

Which of the following is true about Hypothalamus?

0%
a) It is known as master of master gland.
40%
b) It regulates body temperature.
60%
c) It is ectodermal in origin.
0%
d) All of these.

Explanation

Q.21.

FSH is to estrogen as LH is to:

20%
a) Oxytocin.
0%
b) Estrogen.
0%
c) Prolactin.
80%
d) Progesterone.

Explanation

Q.22.

Assertion: A tumour of adrenal cortex may cause Addison’s disease. Reason: This happens due to over secretion of Cortisol by the tumour.

20%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
40%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
20%
c) Assertion is true but Reason is false.
20%
d) Both Assertion and Reason are false.

Explanation

Q.23.

Select the correct option in which the chemical nature of hormones is correctly given:

	Thymosin	Mineralocorticoid	Parathyroid hormone
(A)	Peptide	Steroid	Steroid
(B)	Steroid	Steroid	Peptide
(C)	Peptide	Peptide	Peptide
(D)	Peptide	Steroid	Peptide

20%
a) (A)
20%
b) (B)
20%
c) (C)
40%
d) (D)

Explanation

Q.24.

Which of the following does not play any role in calcium balance in the body?

0%
a) Thyrocalcitonin.
33%
b) Vitamin D.
0%
c) Parathormone.
67%
d) Thymosin.

Explanation

Q.25.

Pineal gland is located on:

0%
a) The dorsal side of heart and aorta.
0%
b) The back side of thyroid gland.
40%
c) The anterior part of adrenal glands.
60%
d) The dorsal side of forebrain.

Explanation

Q.26.

Assertion: Insulin, glucagon, pituitary hormones, hypothalamic hormones, etc., are steroidal hormones. Reason: Epinephrine and Norepinephrine are thyroid hormones.

33%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
33%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
33%
c) Assertion is true but Reason is false.
0%
d) Both Assertion and Reason are false.

Explanation

Support mcqgeeks.com by disabling your adblocker.