Stimulates glucagon release while inhibits insulin release

Stimulates release of insulin and glucagon

Inhibits glucagon release while stimulates insulin release

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NEET • BIOLOGY • CHEMICAL COORDINATION AND INTEGRATION

Chemical coordination and integration practice · Medium

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91 Medium

91 of 198

Understanding +4 | -1

Damage to thymus in a child may lead to

View answer and explanation

Correct option: D

Loss of cell- mediated immunity

The correct answer is D (Loss of cell- mediated immunity) because the thymus is responsible for the maturation of T-lymphocytes, which are essential for cell-mediated immunity.

92 Medium

92 of 198

Analyzing +4 | -1

Select the odd one with respect to the chemical nature of a hormone?

View answer and explanation

Correct option: D

Nuclei and derivatives

Option D (Nuclei and derivatives) is correct because nuclei and their derivatives are not typically classified as hormones, while the other options list common chemical classes of hormones.

93 Medium

93 of 198

Understanding +4 | -1

Drinking of which would lead to the highest rate of ADH secretion?

View answer and explanation

Correct option: B

Sea water

Option B (Sea water) is correct because drinking sea water would lead to the highest rate of ADH secretion due to its high salt concentration, which increases blood osmolarity and triggers ADH release to conserve water.

94 Medium

94 of 198

Analyzing +4 | -1

Diseases caused due to insufficiency of hormones include all except

View answer and explanation

Correct option: A

Cushing's disease

Option A (Cushing's disease) is correct because Cushing's disease is caused by an excess of cortisol, not a deficiency.

95 Medium

95 of 198

Understanding +4 | -1

Small amount of …A… steroids are also secreted by …B… . Cortex which play a role in the growth of axial hair, pubic hair and facial hair during puberty.
Choose the correct combination for A and B

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Correct option: B

A-androgenic; B-adrenal

Option B (A-androgenic; B-adrenal) is correct because the adrenal cortex secretes small amounts of androgenic steroids that contribute to the development of secondary sexual characteristics.

96 Medium

96 of 198

Understanding +4 | -1

Which statement is correct about the thyroid gland?

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Correct option: A

Thyroid hormones are essential for the early development and maturation of the central nervous system

Option A (Thyroid hormones are essential for the early development and maturation of the central nervous system) is correct because thyroid hormones play a crucial role in brain development.

97 Medium

97 of 198

Remembering +4 | -1

Low

C{a^2}^ +

in the body fluid may be the cause of

View answer and explanation

Correct option: A

Tetany

Option A (Tetany) is correct because low calcium levels in the body fluids can lead to increased neuromuscular excitability, resulting in tetany (muscle spasms).

98 Medium

98 of 198

Remembering +4 | -1

Hormones

View answer and explanation

Correct option: D

All of these

Option D (All of these) is correct because hormones are non-nutrient chemicals, act as messengers, and are present in trace amounts.

99 Medium

99 of 198

Remembering +4 | -1

The adrenal medulla secretes two hormones called adrenaline or …A… and noradrenaline or …B… . These are commonly called as …C… . Adrenaline and noradrenaline are rapidly secreted in response to stress of any kind and during …D… situations and are called emergency hormones or hormones of fight or flight.
Identify A to D and choose the correct option

View answer and explanation

Correct option: B

A-epinephrine, B-norepinephrine, C-catecholamines, D-emergency

Option B is correct because adrenaline is also known as epinephrine, noradrenaline as norepinephrine, these are catecholamines, and are released during emergency situations.

100 Medium

100 of 198

Remembering +4 | -1

Hypothalamus is the

View answer and explanation

Correct option: D

Basal part of diencephalon

The correct answer is Basal part of diencephalon because the hypothalamus forms the floor and lower walls of the third ventricle, which is the basal part of the diencephalon.

101 Medium

101 of 198

Understanding +4 | -1

Which of the following does not occur when LH and FSH are present in females?

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Correct option: C

The corpus luteum is maintained

Option B (Androgens are secreted) is correct because while LH and FSH stimulate follicle development and ovulation, they do not directly cause the secretion of androgens in females; that's primarily a function of the male testes.

102 Medium

102 of 198

Remembering +4 | -1

Posterior pituitary stores and release 2 hormones

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Correct option: C

1 and 2

Option C is correct because the posterior pituitary stores and releases both vasopressin (ADH) and oxytocin, which are synthesized in the hypothalamus.

103 Medium

103 of 198

Remembering +4 | -1

Which of the following is called emergency gland of the body?

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Correct option: B

Adrenal

Option B (Adrenal) is correct because the adrenal gland secretes hormones like adrenaline and noradrenaline, which are crucial during emergencies.

104 Medium

104 of 198

Analyzing +4 | -1

Choose the odd one w.r.t. recombinant therapeutics.

View answer and explanation

Correct option: C

Estrogen

Option C (Estrogen) is correct because Erythropoietin, FSH, and Somatotropin are produced using recombinant DNA technology, while estrogen is a naturally occurring hormone and not a recombinant therapeutic.

105 Medium

105 of 198

Understanding +4 | -1

I. Increased alertness

II. Pupillary dilation

III. Raising of hairs

IV. Sweating

All of the above written physiological processes are regulated by

View answer and explanation

Correct option: C

Both (1) and (2)

Option C (Both (1) and (2)) is correct because both adrenaline and norepinephrine regulate the listed physiological processes as part of the "fight or flight" response.

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106 Medium

106 of 198

Understanding +4 | -1

Gastrin acts on …A… gland and …B… the secretion of HCl and …C… . Choose the correct combination. Here A, B and C refers to

View answer and explanation

Correct option: C

A-gastric, B-stimulates, C-pepsinogen

Option C (A-gastric, B-stimulates, C-pepsinogen) is correct because gastrin acts on the gastric gland and stimulates the secretion of HCl and pepsinogen.

107 Medium

107 of 198

Understanding +4 | -1

Identify the correct statement from the following.

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Correct option: C

Androgens help in the production of RBCs

Option C (Androgens help in the production of RBCs) is correct because androgens stimulate erythropoiesis, leading to increased red blood cell production.

108 Medium

108 of 198

Remembering +4 | -1

GnRH, a hypothalamic hormone, needed in reproduction, acts on

View answer and explanation

Correct option: C

Anterior pituitary gland and stimulates secretion of LH and FSH

The correct answer is Anterior pituitary gland and stimulates secretion of LH and FSH because GnRH acts on the anterior pituitary to stimulate the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH).

109 Medium

109 of 198

Analyzing +4 | -1

If the pituitary gland of an adult rat is surgically removed, which of the following endocrine glands will be less affected?

View answer and explanation

Correct option: B

Adrenal medulla

Option B (Adrenal medulla) is correct because the adrenal medulla is primarily controlled by the sympathetic nervous system, not directly by pituitary hormones. The adrenal cortex, thyroid, and gonads are all regulated by pituitary hormones.

110 Medium

110 of 198

Remembering +4 | -1

Somatostatin

View answer and explanation

Correct option: C

Inhibits release of insulin and glucagon

Option C (Inhibits release of insulin and glucagon) is correct because somatostatin acts as an inhibitor of both insulin and glucagon secretion from the pancreas.

111 Medium

111 of 198

Remembering +4 | -1

Which hormone causes dilation of blood vessels, increased oxygen consumption and glycogenolysis?

View answer and explanation

Correct option: C

Adrenaline

Option C (Adrenaline) is correct because adrenaline (epinephrine) causes vasodilation, increased oxygen consumption, and glycogenolysis.

112 Medium

112 of 198

Understanding +4 | -1

Due to effect of which hormone charecters like: swelling around eyes, and large and popping eye balls are observed in an individual  are abserved?

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Correct option: A

Less secretion of thyroxine in adult

Option A (Less secretion of thyroxine in adult) is correct because swelling around eyes and large, popping eyeballs are symptoms of hypothyroidism in adults, specifically myxedema.

113 Medium

113 of 198

Understanding +4 | -1

Select the incorrect one w.r.t. cortisol?

View answer and explanation

Correct option: B

Suppresses RBC production

Option B (Suppresses RBC production) is correct because cortisol does not suppress RBC production; it can actually stimulate it indirectly.

114 Medium

114 of 198

Remembering +4 | -1

LH stimulates the synthesis and secretion of hormones called _____ in males

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Correct option: A

androgens

Option A (androgens) is correct because LH (Luteinizing Hormone) stimulates Leydig cells in the testes to produce and secrete androgens, such as testosterone.

115 Medium

115 of 198

Remembering +4 | -1

The decline and disappearance of …… gland by the middle age is primary cause of ageing

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Correct option: B

Thymus

Option B (Thymus) is correct because the thymus gland undergoes significant involution (decline and disappearance) by middle age, contributing to the aging process due to a weakened immune system.

116 Medium

116 of 198

Understanding +4 | -1

Previous questions diagram represents the mechanism of

View answer and explanation

Correct option: C

Hydrophobic hormone action

Option D (Fat soluble hormone action) is correct because the diagram likely depicts a hormone entering the cell and binding to a receptor inside, which is characteristic of hydrophobic/fat-soluble hormones.

117 Medium

117 of 198

Understanding +4 | -1

Find the correctly matched pair.

View answer and explanation

Correct option: D

Cholecystokinin - stimulates pancreatic enzyme secretions

Option D (Cholecystokinin - stimulates pancreatic enzyme secretions) is correct because Cholecystokinin (CCK) stimulates the pancreas to release enzymes.

118 Medium

118 of 198

Remembering +4 | -1

A hormone responsible for normal sleep-wake cycle is

View answer and explanation

Correct option: C

Melatonin

Option C (Melatonin) is correct because melatonin is the hormone primarily responsible for regulating the normal sleep-wake cycle.

119 Medium

119 of 198

Analyzing +4 | -1

(i) Stimulate muscular growth
(ii) Aggressiveness
(iii) Act on C.N.S and influence libido
(iv) Catabolic effect on protein
(v) High pitch voice
How many of the above is not the function of testosterone ?

View answer and explanation

Correct option: C

Two

Option C (Two) is correct because a catabolic effect on protein and high pitch voice are not functions of testosterone. Testosterone has an anabolic effect on protein and causes a deeper voice.

120 Medium

120 of 198

Understanding +4 | -1

Synthesis and release of FSH from anterior pituitary is inhibited by all except

View answer and explanation

Correct option: D

Relaxin from developing follicles

Option D (Relaxin from developing follicles) is correct because Relaxin primarily functions during pregnancy to relax the pelvic ligaments and does not directly inhibit FSH release. Inhibin, estrogen, and progesterone do inhibit FSH release.

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Review CHEMICAL COORDINATION AND INTEGRATION in your textbook or class notes, then use this set to check your understanding.

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