Which of the following conditions will stimulate parathyroid gland to release parathyroid hormone?

1. Fall in active Vitamin D levels

2. Fall in blood Ca+2 levels

3. Fall in bone Ca+2 levels

4. Rise in blood Ca+2 levels

Subtopic:  Parathyroid |
 80%
From NCERT
NEET - 2019
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Artificial light, extended work-time and reduced sleep-time disrupt the activity of:

1. Thymus gland

2. Pineal gland

3. Adrenal gland

4. Posterior pituitary gland

Subtopic:  Pineal Gland |
 93%
From NCERT
NEET - 2019
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Identify A, B and C in the diagrammatic representation of the mechanism of hormone action.


Select the correct option from the following:

1. A = Steroid Hormone; B = Hormone receptor Complex; C = Protein
2. A = Protein Hormone; B = Receptor; C = Cyclic AMP
3. A = Steroid Hormone; B = Receptor; C = Second Messenger
4. A = Protein Hormone; B = Cyclic AMP; C = Hormone-receptor Complex
Subtopic:  Mechanism of Hormone Action |
 72%
From NCERT
NEET - 2019
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Which of the following hormones is responsible for both the milk ejection reflex and the foetal ejection reflex?

1. Estrogen 2. Prolactin
3. Oxytocin 4. Relaxin
Subtopic:  Prolactin & Posterior Pituitary |
 88%
From NCERT
NEET - 2019
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Match the following hormones with the respective disease:

(a)  Insulin      (i)  Addison's disease
(b)  Thyroxin  (ii)  Diabetes insipidus
(c)  Corticoids  (iii) Acromegaly
(d) Growth Hormone  (iv)  Goitre
(v) Diabetes mellitus


Select the correct option.

(a) (b) (c) (d)
1. (ii)  (iv)  (i) (iii) 
2. (v)  (i)  (ii)  (iii) 
3. (ii)  (iv)  (iii)  (i) 
4. (v) (iv) (i)  (iii) 

Subtopic:  Human Growth Hormone | Thyroid Gland Part I | Adrenal Cortex: Cortisol | Pancreas: I | Pancreas |
 71%
From NCERT
NEET - 2019
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How does steroid hormone influence the cellular activities?

1. Using aquaporin channels as second messenger
2. Changing the permeability of the cell membrane
3. Binding the DNA and forming a gene-hormone complex
4. Activating cyclic AMP located on the cell membrane
Subtopic:  Mechanism of Hormone Action |
 70%
From NCERT
NEET - 2019
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Hormone responsible for the secretion of milk after parturition is:

1. ACTA

2. LH

3. ICSH

4. Prolactin

Subtopic:  Adenohypophysis & Hypothalamus |
 90%
From NCERT
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Endemic goiter is a state of:

1. Normal thyroid function

2. Moderate thyroid function

3. Increased thyroid function

4. Decrease thyroid function

Subtopic:  Thyroid Gland Part I | Thyroid Gland Part II |
 54%
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Glycogenolysis involves:

1. conversion of sugar into glycogen

2. oxidation of sugar

3. conversion of glycogen into sugar

4. conversion of glycogen into fat

Subtopic:  Pancreas |
 75%
From NCERT
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The contraction of the gall bladder is due to:

1. gastrin

2. secretin

3. cholecystokinin

4. enterogastrone

Subtopic:  Misc. Hormones |
 79%
From NCERT
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