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NEET • BIOLOGY • CHEMICAL COORDINATION AND INTEGRATION

Chemical coordination and integration practice · Mixed difficulty

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Showing 301-330 of 381 questions

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301 Medium
301 of 381
Remembering +4 | -1
Endocrine glands are also called
View answer and explanation
Correct option: C
Heterocrine glands
Option C (Heterocrine glands) is correct because endocrine glands are also called heterocrine glands.
302 Medium
302 of 381
Remembering +4 | -1
A steroid hormone which regulates glucose metabolism is
View answer and explanation
Correct option: B
Cortisol
Option B (Cortisol) is correct because cortisol is a glucocorticoid steroid hormone that regulates glucose metabolism, inflammation, and stress response.
303 Easy
303 of 381
Remembering +4 | -1
Hormone responsible for the control of the development of secondary sexual characters in females is
View answer and explanation
Correct option: B
Oestrogen
Option B (Oestrogen) is correct because oestrogen is the primary hormone responsible for the development of secondary sexual characteristics in females.
304 Medium
304 of 381
Understanding +4 | -1
Consider the following statements regarding hormonal disorders:  a. Grave’s disease is a form of hypothyroidism,  b. Excessive secretion of growth hormone after puberty leads to acromegaly,  c. Prolonged hyperglycemia leads to a complex disorder called diabetes mellitus,  d. Cretinism is the defective development and maturation of the growing baby due to hypothyroidism during pregnancy.   Choose the option that mention only correct statements.
View answer and explanation
Correct option: C
Only b, c and d
Option C (Only b, c and d) is correct because Grave's disease is a form of hyperthyroidism, not hypothyroidism, while the other statements are accurate.
305 Medium
305 of 381
Remembering +4 | -1
Following hormone not secreted by anterior pituitary
View answer and explanation
Correct option: D
ADH
The correct answer is D (ADH) because ADH (Antidiuretic Hormone) is secreted by the posterior pituitary gland, not the anterior pituitary.
306 Medium
306 of 381
Analyzing +4 | -1
A specific hormone is responsible for causing a disease that is characterized by excessive urination. The urine analysis of such a person reveals that the urine is dilute, has high pH and absence of sugar in it. This is due to under secretion of hormone from
View answer and explanation
Correct option: B
The gland which stores the hypothalamic hormones
Option B is correct because the posterior pituitary gland stores and releases hormones synthesized by the hypothalamus, and undersecretion of ADH (stored in the posterior pituitary) causes diabetes insipidus, characterized by excessive urination of dilute urine.
307 Medium
307 of 381
Remembering +4 | -1
Increase in bleeding time and delay in blood coagulation is due to the deficiency of which hormone?
View answer and explanation
Correct option: C
Parathormone
Option D (Regulation of Ca+2C{a^{ + 2}} level in blood) is correct because parathormone's primary function is to increase blood calcium levels.
308 Easy
308 of 381
Remembering +4 | -1
Diurnal rhythm of our body is maintained by
View answer and explanation
Correct option: B
Pineal gland
Option B (Pineal gland) is correct because the pineal gland secretes melatonin, which regulates the diurnal rhythm of the body.
309 Medium
309 of 381
Understanding +4 | -1
Steroid hormones typically alters the activity of target cells by
View answer and explanation
Correct option: C
Interacting with intracellular receptors
Option C (Interacting with intracellular receptors) is correct because steroid hormones are lipid-soluble and bind to receptors inside the cell to influence gene expression.
310 Easy
310 of 381
Understanding +4 | -1
Androgens regulates
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because androgens, like testosterone, regulate the development, maturation, and function of male accessory sex organs and promote muscular growth.
311 Medium
311 of 381
Understanding +4 | -1
Read the statements A and B carefully, select the correct option.

Statement A: PTH increases Ca2+C{a^{2 + }} absorption from the digested food.

Statement B: PTH stimulates the process of demineralization.
View answer and explanation
Correct option: A
Both statements A and B are correct
Option A (Both statements A and B are correct) is correct because PTH increases calcium absorption and stimulates demineralization of bone.
312 Medium
312 of 381
Understanding +4 | -1
Choose the correct match
View answer and explanation
Correct option: C
Vasopressin – Reabsorption of water from nephric filtrate
Option C (Vasopressin – Reabsorption of water from nephric filtrate) is correct because vasopressin (ADH) increases water reabsorption in the kidneys, reducing urine volume.
313 Easy
313 of 381
Understanding +4 | -1
The hyposecretion of which hormone leads to loss of sodium and water through urine, low blood pressure and hypotension?
View answer and explanation
Correct option: B
Hormones of adrenal cortex
Option B (Hormones of adrenal cortex) is correct because aldosterone, a hormone of the adrenal cortex, regulates sodium and water balance.
314 Medium
314 of 381
Understanding +4 | -1
Hormones which interact with membrane bound receptors generate following second messengers except –
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Correct option: D
Na+N{a^ + }
Option D (Na+N{a^ + }) is correct because Na+Na^+ is an ion involved in membrane potential and action potentials, but it is not typically a second messenger generated by membrane-bound receptors.
315 Medium
315 of 381
Understanding +4 | -1
I. Regulation of BMR,  II. Supports the process of RBC formation,  III. Controls the metabolism of carbohydrates, proteins and fat,  IV. Maintenance of water and electrolyte balance,  V. Secretion of TCT hormone. Function written above belong to which of the following gland
View answer and explanation
Correct option: A
Thyroid gland
Option A (Thyroid gland) is correct because all the listed functions are associated with the thyroid gland and its hormones.
316 Easy
316 of 381
Remembering +4 | -1
Which of the following is the function of adrenaline?
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Correct option: B
Increase heart rate and blood pressure
Option B is correct because adrenaline (epinephrine) increases heart rate and blood pressure as part of the "fight or flight" response.
317 Medium
317 of 381
Understanding +4 | -1
Prolonged hyperglycemia leads to
View answer and explanation
Correct option: D
Both (2) and (3)
Option D (Both (2) and (3)) is correct because prolonged hyperglycemia leads to both Diabetes mellitus and an increase in ketone bodies.
318 Easy
318 of 381
Understanding +4 | -1
Presence of glycosuria and ketonuria conditions in urine are indicative of which disorder?
View answer and explanation
Correct option: D
Diabetes mellitus
Option D (Diabetes mellitus) is correct because glycosuria and ketonuria are indicative of this disorder.
319 Easy
319 of 381
Understanding +4 | -1
I. Increase of heart beat,  II. Increase of respiration rate,  III. Stimulate breakdown of glycogen, .  IV. Stimulate breakdown of lipid and protein.  Statement written above are the features of which hormone
View answer and explanation
Correct option: D
Catecholamine
Option D (Catecholamine) is correct because the listed effects are characteristic of catecholamines like epinephrine and norepinephrine.
320 Easy
320 of 381
Understanding +4 | -1
Study the following statements:
a) Both MSH and melatonin influences the pigmentation.
b) Thymosins help in differentiation of T lymphocytes and promote production of antibodies.
c) Erythropoiesis is influenced by erythropoietin and thyroxin.
d) Parathyroid hormone promotes ossification of bone by increasing blood calcium levels.
The correct ones of the above are
View answer and explanation
Correct option: B
Only a, b and c
Option B (Only a, b and c) is correct because statements a, b, and c are accurate descriptions of hormone functions.
321 Medium
321 of 381
Understanding +4 | -1
I. Glucagon, II. Epinephrine,  III. Steroid hormone,  IV. Idothyronine.   Among the given hormones which needs secondary messenger
View answer and explanation
Correct option: C
I and II
Option C (I and II) is correct because glucagon and epinephrine are peptide hormones that bind to membrane receptors and require secondary messengers.
322 Medium
322 of 381
Understanding +4 | -1
Given below are the two statements one is labelled as Assertion(A) and the other is labelled as Reason (R)

Assertion (A): Parathyroid hormone is a hypercalcemic hormone.

Reason (R) : PTH stimulates reabsorption of Ca2+C{a^{2 + }} by renal tubules and absorption of Ca2+C{a^{2 + }} from the digested food.
View answer and explanation
Correct option: C
Both (A) and (R) are correct, (R) is the correct explanation of (A)
Option C (Both (A) and (R) are correct, (R) is the correct explanation of (A)) is correct because PTH increases blood calcium levels by reabsorption in the kidneys and absorption from digested food.
323 Easy
323 of 381
Remembering +4 | -1
Large number of hormones are secreted by
View answer and explanation
Correct option: A
Pituitary
Option A (Pituitary) is correct because the pituitary gland secretes a large number of hormones that regulate various bodily functions.
324 Easy
324 of 381
Remembering +4 | -1
The function of oxytocin is to help in
View answer and explanation
Correct option: A
Child birth
The correct answer is Child birth because oxytocin stimulates uterine contractions during labor.
325 Medium
325 of 381
Understanding +4 | -1
I. Hormones are non-nutrient chemicals, II. Hormones act as intracellular chemicals,  III. Hormones are produced in moderate quantity,  IV. Hormones may be proteins, steroids, glycoproteins or biogenic amines.  Choose the option with written above correct statements
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Correct option: D
I and IV
Option D (I and IV) is correct because hormones are non-nutrient chemicals and can be proteins, steroids, glycoproteins, or biogenic amines. Hormones act as extracellular messengers, and are produced in trace amounts.
326 Easy
326 of 381
Remembering +4 | -1
Thymosin hormone is secreted by
View answer and explanation
Correct option: C
Thymus gland
Option C (Thymus gland) is correct because thymosin is a hormone secreted by the thymus gland and is involved in the development of T-lymphocytes.
327 Easy
327 of 381
Understanding +4 | -1
Select the incorrect match w.r.t. hormone, its source gland and function.
View answer and explanation
Correct option: B
Hormone – Thymosin, Source – Thyroid gland, Function – Regulates basal metabolic rate
Option B (Hormone – Thymosin, Source – Thyroid gland, Function – Regulates basal metabolic rate) is the incorrect match because thymosin is secreted by the thymus gland, not the thyroid gland, and it is involved in T-lymphocyte maturation, not regulating basal metabolic rate.
328 Easy
328 of 381
Understanding +4 | -1
Which of the following hormones have the direct effect on BP (Blood Pressure)? I. Thymosin,  II. PRL,  III. MSH,  IV. Adrenaline,  V. Non-adrenaline.  Select the option containing the correct pair
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Correct option: C
IV and V
Option C (IV and V) is correct because adrenaline and noradrenaline directly affect blood pressure by influencing heart rate and vasoconstriction.
329 Medium
329 of 381
Analyzing +4 | -1
Which of the following cannot be included in the same chemical group?
View answer and explanation
Correct option: D
Epinephrine
Option D (Epinephrine) is correct because cortisol, estradiol, and progesterone are all steroid hormones, while epinephrine is an amine hormone.
330 Medium
330 of 381
Remembering +4 | -1
Goitre disorder is due to the deficiency of
View answer and explanation
Correct option: B
Iodine
Option B is correct because iodine deficiency leads to hypothyroidism, which can cause goiter (enlargement of the thyroid gland).
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