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NEET • BIOLOGY • CHEMICAL COORDINATION AND INTEGRATION

Chemical coordination and integration practice · Medium

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Showing 61-90 of 198 questions

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61 Medium
61 of 198
Understanding +4 | -1
All of the following hormones interact with membrane bound receptors except
View answer and explanation
Correct option: C
Cortisol
Option C (Cortisol) is correct because cortisol, being a steroid hormone, interacts with intracellular receptors, while the others interact with membrane-bound receptors.
62 Medium
62 of 198
Remembering +4 | -1
Name of peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilization.
View answer and explanation
Correct option: B
Insulin
The correct answer is Insulin because it is a peptide hormone that enhances cellular glucose uptake and utilization, particularly in hepatocytes and adipocytes.
63 Medium
63 of 198
Remembering +4 | -1
‘Myasthenia gravis’ is related to which hormone?
View answer and explanation
Correct option: C
Thymosine hormone
The correct answer is C (Thymosine hormone) because Myasthenia gravis is an autoimmune neuromuscular disease where antibodies block or destroy acetylcholine receptors, and the thymus gland, which produces thymosin, is often abnormal in these patients.
64 Medium
64 of 198
Analyzing +4 | -1
Select the odd one w.r.t. the hormones secreted from the thyroid gland
View answer and explanation
Correct option: B
Parathormone
Option B (Parathormone) is correct because parathormone is secreted by the parathyroid gland, while the others are secreted by the thyroid gland.
65 Medium
65 of 198
Remembering +4 | -1
‘ANF’ is secretes by
View answer and explanation
Correct option: B
Atrial wall of heart
Option B (Atrial wall of heart) is correct because ANF (Atrial Natriuretic Factor) is secreted by the atrial wall of the heart in response to increased blood volume.
66 Medium
66 of 198
Understanding +4 | -1
I. Somatostatin inhibits intestinal absorption of glucose,  II. Leydig’s cell secrete progesterone,  III. Melatonin is secreted by pineal gland,  IV. Myxoedema is a thyroid disorder,  V. Neurohypophysis secreteS ACTH .  Select the correct statements and choose the option
View answer and explanation
Correct option: A
I, III and IV
Option A (I, III and IV) is correct because statements I, III, and IV are accurate descriptions of hormone functions and gland characteristics.
67 Medium
67 of 198
Understanding +4 | -1
Which of the following hormone is synthesized at the location different from its storage and release site?
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Correct option: A
Vasopressin
The correct answer is A (Vasopressin) because it is synthesized in the hypothalamus and stored/released from the posterior pituitary.
68 Medium
68 of 198
Understanding +4 | -1
Read the given statements and select the correct option.
Statement A:- The testis secretes androgens which stimulate enythropoiesis.
Statement B:- The atrial wall of the heart produces atrial natriuretic factor which increases the blood pressure.
View answer and explanation
Correct option: B
Both the statements are incorrect.
Option B (Both the statements are incorrect) is correct because the testis secretes androgens which do not stimulate erythropoiesis, and ANF decreases blood pressure, not increases it.
69 Medium
69 of 198
Remembering +4 | -1
Steroid hormone is derived from
View answer and explanation
Correct option: B
Cholesterol
Option B (Cholesterol) is correct because steroid hormones are derived from cholesterol.
70 Medium
70 of 198
Remembering +4 | -1
Which hormone secreted by pars intermedia
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Correct option: A
MSH
Option A is correct because the pars intermedia of the pituitary gland secretes melanocyte-stimulating hormone (MSH), which influences skin pigmentation.
71 Medium
71 of 198
Remembering +4 | -1
Hypothalamus contains several group of neurosecretory cells called
View answer and explanation
Correct option: C
Nuclei
The correct answer is Nuclei because the hypothalamus contains clusters of neuron cell bodies called nuclei.
72 Medium
72 of 198
Remembering +4 | -1
Hormones provides coordination in
View answer and explanation
Correct option: A
Vertebrates
Option A (Vertebrates) is correct because hormones primarily coordinate functions in vertebrates.
73 Medium
73 of 198
Remembering +4 | -1
Which is not a symptom of exophthalmic goiter?
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Correct option: A
Degenerating sex organs
Option D (Excess of parathormone would cause parathyroid tetany) is correct because excess parathormone leads to hypercalcemia, while parathyroid tetany is caused by hypocalcemia due to parathormone deficiency.
74 Medium
74 of 198
Remembering +4 | -1
During emergency which of the following hormone is secreted?
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Correct option: C
Adrenaline
Option C (Adrenaline) is correct because adrenaline is the hormone secreted during emergency situations to prepare the body for \"fight or flight.\"
75 Medium
75 of 198
Understanding +4 | -1
All of the following are associated with catecholamines except
View answer and explanation
Correct option: C
Glycogenesis
Option C (Glycogenesis) is correct because catecholamines stimulate glycogenolysis (breakdown of glycogen), not glycogenesis (synthesis of glycogen).
76 Medium
76 of 198
Understanding +4 | -1
Androgen regulates the development, maturation and functions of all in males, except
View answer and explanation
Correct option: D
Embryonic origin of testes
Option D (Embryonic origin of testes) is correct because androgens regulate the development, maturation, and function of the epididymis, vas deferens, and urethra, but not the embryonic origin of the testes.
77 Medium
77 of 198
Remembering +4 | -1
Pineal gland secretes which hormones;  I. Serotonin, II. ACTH,  III. MSH,  IV. PRL,  V. Melatonin , VI. FSH.  The correct option is
View answer and explanation
Correct option: D
I and V
Option D (I and V) is correct because the pineal gland secretes Serotonin and Melatonin.
78 Medium
78 of 198
Analyzing +4 | -1
S-I: Thyroid hormones maintain normal body temperature.

S-II: Thyroid hormones stimulate the use of cellular oxygen to produce ATP. As cell produce and use more ATP, more heat is given off.
View answer and explanation
Correct option: C
S-I is true, S-II is false
Option C (S-I is true, S-II is false) is correct because thyroid hormones do maintain normal body temperature, but they stimulate cellular oxygen use for ATP production, which generates heat, not the other way around.
79 Medium
79 of 198
Remembering +4 | -1
The thyroid gland is composed of
View answer and explanation
Correct option: D
Both (a) and (b)
Option D (Both (a) and (b)) is correct because the thyroid gland is composed of follicles that produce thyroid hormones and stromal tissue that provides support.
80 Medium
80 of 198
Analyzing +4 | -1
Choose the option which contains only incorrect statements.
a. Goitre may be caused by iodine deficiency in the diet.
b. Target gland of PRL is corpus luteum.
c. Oxytocin causes ejection of milk from mammary gland.
d. ADHA D H maintains the 24-hour diurnal rhythm of the body.
e. The major role of thymus is the development of emergency hormones.
View answer and explanation
Correct option: B
b, d and e
The correct answer is B because statements b, d, and e are incorrect. PRL's target is not corpus luteum, ADH doesn't maintain diurnal rhythm, and the thymus's major role isn't emergency hormones.
81 Medium
81 of 198
Remembering +4 | -1
Which of the following vitamins has some physiological effects similar to those of parathormone?
View answer and explanation
Correct option: B
Vitamin- D
Option B (Vitamin- D) is correct because Vitamin D, like parathormone, increases calcium absorption in the intestine and increases blood calcium levels.
82 Medium
82 of 198
Remembering +4 | -1
Due to deficiency of which hormone, bones becomes weak in female?
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Correct option: D
Oestrogen
Option D (Oestrogen) is correct because oestrogen deficiency in females can lead to weakened bones (osteoporosis).
83 Medium
83 of 198
Remembering +4 | -1
The estrogen is synthesised and secreted mainly by growing …A… . After ovulation the ruptured follicle is converted to a structure called …B… which secretes …C… . Choose the correct option for A, B and C
View answer and explanation
Correct option: B
A-Graafian follicle, B-corpus luteum, C-progesterone
Option B (A-Graafian follicle, B-corpus luteum, C-progesterone) is correct because estrogen is synthesized by the Graafian follicle, which then becomes the corpus luteum after ovulation, secreting progesterone.
84 Medium
84 of 198
Remembering +4 | -1
Which hormone acts on the exocrine part of pancreas and stimulates secretion of water and bicarbonate ions?
View answer and explanation
Correct option: B
Secretin
Option B (Secretin) is correct because secretin stimulates the exocrine part of the pancreas to secrete water and bicarbonate ions, neutralizing stomach acid in the duodenum.
85 Medium
85 of 198
Analyzing +4 | -1
S-I: Neurons and muscles depolarize spontaneously due to hypoparathyroidism.

S-II: Hypoparathyroidism increases Ca2+{Ca}_2{ }^{+}level in the blood.
View answer and explanation
Correct option: C
S-I is true, S-II is false
Option C (S-I is true, S-II is false) is correct because hypoparathyroidism leads to decreased calcium levels, causing spontaneous depolarization of neurons and muscles, but it does NOT increase calcium levels.
86 Medium
86 of 198
Remembering +4 | -1
Which of the following hormones are actually synthesised by the hypothalamus and are transported axonally to neurohypophysis?
View answer and explanation
Correct option: D
Oxytocin and ADH
Option D (Oxytocin and ADH) is correct because oxytocin and ADH are synthesized in the hypothalamus and transported axonally to the neurohypophysis (posterior pituitary) for storage and release.
87 Medium
87 of 198
Understanding +4 | -1
Which one of the following is incorrectly matched?
View answer and explanation
Correct option: A
Insulin – Diabetes insipidus
Option A (Insulin – Diabetes insipidus) is correct because insulin is related to Diabetes mellitus, not Diabetes insipidus.
88 Medium
88 of 198
Understanding +4 | -1
Insulin is
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because insulin is a hypoglycemic hormone, decreases blood sugar, and acts on adipose tissue and hepatocytes.
89 Medium
89 of 198
Understanding +4 | -1
Consider the following statements w.r.t. endocrine system and choose the correct option.
a. A is released from hypothalamus, which inhibits the release of growth hormone from pituitary gland.
b. Pars intermedia secretes only one hormone called B.
View answer and explanation
Correct option: B
a-Somatostatin,b-MSH
Option B (a-Somatostatin, b-MSH) is correct because Somatostatin inhibits growth hormone release from the pituitary, and Pars intermedia secretes MSH.
90 Medium
90 of 198
Understanding +4 | -1
Which of the following is not true for hormones?
View answer and explanation
Correct option: D
Each and every hormone of human is always chemically protein.
Option D is correct because not all human hormones are chemically proteins; some are steroids or amino acid derivatives.
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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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