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Chemical Coordination and Integration

83 Questions Start NEET Test
All Exams NEET AIIMS
2012 Q51 NEET MCQ
10 Mar 2026
What is correct to say about the hormone action in humans?
A.
Glucagon is secreted by $\beta $-cells of islets of Langerhans and stimulates glycogenolysis.
B.
Secretion of thymosins is stimulated with aging.
C.
In females, FSH first binds with specific receptors on ovarian cell membrane.
D.
FSH stimulates the secretion of estrogen and progesterone.
2012 Q52 NEET MCQ
10 Mar 2026
A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system?
A.
Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla.
B.
Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse.
C.
Hypothalamus activates the parasympathetic division of brain.
D.
Sympathetic nervous system is activated releasing epinephrine and nore pinephrine from adrenal cortex.
2012 Q53 NEET MCQ
10 Mar 2026
Which one of the following pairs of hormones are the examples of those that can easily pass through the cell membrane of the target cell and bind to a receptor inside it (mostly in the nucleus)?
A.
Insulin, glucagon
B.
Thyroxine, insulin
C.
Somatostatin, oxytocin
D.
Cortisol, testosterone
2011 Q54 NEET MCQ
10 Mar 2026
The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone
A.
calcitonin
B.
prolactin
C.
adrenaline
D.
melatonin
2011 Q55 NEET MCQ
10 Mar 2026
Given below is an incomplete table on hormones, their source glands and one major effect of each human body. Identify the option representing correct grouping of hormone its gland and effect.

Gland Secretion Effect on body
A Estrogen Maintenance of
secondary sexual
characters
Alpha cells of Islets
of Langerhans		 B Raises blood sugar
level
Anterior pituitary C Over secretion leads
to gigantism
A.
A B C
Ovary Glucagon Growth hormone
B.
A B C
Placenta Insulin Vasopressin
C.
A B C
Ovary Insulin Calcitonin
D.
A B C
Placenta Glucagon Calcitonin
2011 Q56 NEET MCQ
10 Mar 2026
Match the source gland with its respective hormone and function and select the correct option.
A.
Source gland Hormone Function
Anterior pituitary Oxytocin Contraction of uterus
muscles during child
birth
B.
Source gland Hormone Function
Posterior pituitary Vasopressin Stimulates reabsorption
of water in the distal tub-
ules in the nephron
C.
Source gland Hormone Function
Corpus luteum Estrogen Supports pregnancy
D.
Source gland Hormone Function
Thyroid Thyroxine Regulates blood
calcium level
2010 Q57 NEET MCQ
10 Mar 2026
Which one of the following pairs is incorrectly matched?
A.
Glucagon $-$ Beta cells (source)
B.
Somatostatin $-$ Delta cells (source)
C.
Corpus luteum $-$ Relaxin (secretion)
D.
Insulin $-$ Diabetes mellitus (disease)
2010 Q58 NEET MCQ
10 Mar 2026
select the correct matching of a hormone, its source and function.
A.
Hormone Source Function
Vasopression Posterior pituitary Increases loss of
water through urine
B.
Hormone Source Function
Norepinephrine Adrenal medulla Increases heart beat,
rate of respiration and
alterness
C.
Hormone Source Function
Glucagon Beta-cells of Islets of
Langerhans		 Stimulates glycogenolysis
D.
Hormone Source Function
Prolactin Posterior pituitary Regulates growth
of mammary glands
and milk formation in
females
2010 Q59 NEET MCQ
10 Mar 2026
Low Ca++ in the body fluid may be the cause of
A.
tetany
B.
anaemia
C.
angina pectoris
D.
gout.
2010 Q60 NEET MCQ
10 Mar 2026
Injury to adrenal cortex is not likely to affect the secretion of which one of the following?
A.
Aldosterone
B.
Both androstenedione and dehydroepiandrosterone
C.
Adrenaline
D.
Cortisol
2010 Q61 NEET MCQ
10 Mar 2026
Toxic agents present in food which interfere with thyroxine synthesis lead to the development of
A.
toxic goitre
B.
cretinism
C.
simple goitre
D.
thyrotoxicosis.
2009 Q62 NEET MCQ
10 Mar 2026
A health disorder that results from the deficiency of thyroxine in adults and characterised by (i) a low metabolic rate, (ii) increase in body weight and (iii) tendency to retain water in tissues is
A.
simple goitre
B.
myxoedema
C.
cretinism
D.
hypothyroidism.
2008 Q63 NEET MCQ
10 Mar 2026
The blood calcium level is lowered by the deficiency of
A.
both calcitonin and parathormone
B.
calcitonin
C.
parathormone
D.
thyroxine.
2008 Q64 NEET MCQ
10 Mar 2026
Which one of the following pair of organs includes only the endocrine glands?
A.
Thymus and testes
B.
Adrenal and ovary
C.
Parathyroid and adrenal
D.
Pancreas and parathyroid
2007 Q65 NEET MCQ
10 Mar 2026
Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action?
A.
Adrenaline
B.
Glucagon
C.
Gastrian
D.
Thyroxine
2007 Q66 NEET MCQ
10 Mar 2026
A person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?
A.
Parotid
B.
Pancreas
C.
Thyroid
D.
Parathyroid
2006 Q67 NEET MCQ
10 Mar 2026
A steroid hormone which regulates glucose metabolism is
A.
cortisone
B.
cortisol
C.
corticosterone
D.
11-deoxycorticosterone.
2006 Q68 NEET MCQ
10 Mar 2026
Which one of the following statements is correct?
A.
Endocrine glands regulate neural activity, but not vice versa.
B.
Neurons regulate endocrine activity, but not vice versa.
C.
Endocrine glands regulate neural activity, and nervous system regulates endocrine glands.
D.
Neither hormones control neural activity nor the neurons control endocrime activity.
2006 Q69 NEET MCQ
10 Mar 2026
Which of the following is an accumulation and release center of neurohormones?
A.
Anterior pituitary lobe
B.
Posterior pituitary lobe
C.
Intermediate lobe of the pituitary
D.
Hypothalamus
2006 Q70 NEET MCQ
10 Mar 2026
Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis?
A.
Glucagon
B.
ACTH
C.
Insulin
D.
Adrenaline
2006 Q71 NEET MCQ
10 Mar 2026
Which one of the following is not a secondary messenger in hormone action?
A.
cAMP
B.
cGMP
C.
Calcium
D.
Sodium
2004 Q72 NEET MCQ
10 Mar 2026
Which one of the following hormones is modified amino acid?
A.
Epinephrine
B.
Progesterone
C.
Prostaglandin
D.
Estrogen
2004 Q73 NEET MCQ
10 Mar 2026
Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?
A.
Luteinizing hormone    -    Failure of ovulation
B.
Insulin    -    Diabetes insipidus
C.
Thyroxine    -    Tetany
D.
Parathyroid    -    Diabetes mellitus
2004 Q74 NEET MCQ
10 Mar 2026
Chemically hormones are
A.
biogenic amines only
B.
proteins, steroids and biogenic amines
C.
proteins only
D.
steroids only
2003 Q75 NEET MCQ
10 Mar 2026
Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?
A.
Relaxin $-$ Gigantism
B.
Prolactin $-$ Cretinism
C.
Parathyroid hormone $-$ Tetany
D.
Insulin $-$ Diabetes insipidus
2002 Q76 NEET MCQ
10 Mar 2026
When both ovaries are removed from rat then which hormone is decreased in blood?
A.
Oxytocin
B.
Prolactin
C.
Estrogen
D.
Gonadotropin releasing factor
2002 Q77 NEET MCQ
10 Mar 2026
Adrenaline directly affects on
A.
S.A. node
B.
$\beta $-cells of Langerhans
C.
dorsal root of spinal nerve
D.
epithelial cells of stomach.
2002 Q78 NEET MCQ
10 Mar 2026
Mainly which type of hormones control the menstrual cycle in human beings?
A.
FSH
B.
LH
C.
FSH, LH, estrogen
D.
progesterone
2002 Q79 NEET MCQ
10 Mar 2026
Acromegaly is caused by
A.
excess of STH
B.
excess of thyroxine
C.
deficiency of thyroxine
D.
excess of adrenaline.
2001 Q80 NEET MCQ
10 Mar 2026
Which set is similar?
A.
Corpus luteum    -    Graafian follicles
B.
Sebum    -    Sweat
C.
Bundle of His    -    Pace maker
D.
Vitamin B7    -    Niacin
2000 Q81 NEET MCQ
10 Mar 2026
MSH is secreted by
A.
anterior lobe of pituitary
B.
middle lobe of pituitary
C.
posterior lobe of pituitary
D.
endostyle.
2000 Q82 NEET MCQ
10 Mar 2026
Which gland secretes odorous secretion in mammals?
A.
Bartholins
B.
Prostate
C.
Anal gland
D.
Liver
2000 Q83 NEET MCQ
10 Mar 2026
Melatonin is secreted by
A.
pineal body
B.
skin
C.
pituitary gland
D.
thyroid.