NEET Biology MCQ - Chemical Coordination And Regulation Mcq - Quiz-11 - MCQGeeks.com

Q.1

Which of the following hormone follows mechanism shown in the diagram

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a) Insulin
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b) Glycogon
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c) Adrenaline
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d) Progesterone

Q.2

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

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a) oxytocin
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b) TCT
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c) PTH
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d) ACTH

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

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

Q.4

Neurohypophysis is under the direct regulation of:

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a) Pars intermedia.
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b) Pars nervosa.
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c) Pars distalis.
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d) Hypothalamus.

Q.5

Neurotransmitter which controls the release of prolactin:

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a) Somatostatin.
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b) Serotonin.
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c) GABA.
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d) Dopamine.

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

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

Q.7

Erythropoetic hormones is/are:

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a) Thyroxine.
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b) Cortisol.
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c) Erythropoietin.
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d) All of these.

Q.8

Ca2+ level in body is controlled by:

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a) Adrenal gland.
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b) Parathyroid gland.
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c) Thyroid gland.
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d) Both (B) and (C).

Q.9

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

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

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

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a) (i) and (ii)
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b) (iii) and (iv)
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c) (i) and (iv)
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d) (i) and (iii)

Q.11

Which part of following secretes LH.RH?

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a) Pars distalis
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b) Pars intermedia
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c) Pars nervosa
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d) Hypothalamus

Q.12

Which of the following is not effect of catecholamine?

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

Q.13

Which of the following is not peptide protein hormone?

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a) Glucogon
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b) Insulin
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c) FSH
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d) Estradiol

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

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

Q.15

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

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a) Adrenal gland.
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b) Pineal gland.
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c) Thyroid gland.
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d) Thymus gland.

Q.16

The cells which secrete the male sex hormone testosterone are:

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a) Lieberkuhn.
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b) Crypt cells.
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c) Islets of Langerhans
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d) Leydig cells

Q.17

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

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

Q.18

Select the false statement:

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

Q.19

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

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

Q.20

Which of the following is true about Hypothalamus?

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

Q.21

FSH is to estrogen as LH is to:

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a) Oxytocin.
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b) Estrogen.
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c) Prolactin.
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d) Progesterone.

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.

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

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

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a) (A)
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b) (B)
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c) (C)
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d) (D)

Q.24

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

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a) Thyrocalcitonin.
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b) Vitamin D.
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c) Parathormone.
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d) Thymosin.

Q.25

Pineal gland is located on:

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

Q.26

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

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

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