Stimulate the growth of ovarian follicle

Stimulate the appearance of secondary sex characters

Stimulate the growth of mammary gland

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NEET • BIOLOGY • CHEMICAL COORDINATION AND INTEGRATION

Chemical coordination and integration practice · Mixed difficulty

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Showing 31-60 of 381 questions

31 Easy

31 of 381

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Ovary produces

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Correct option: D

All of these

Option D (All of these) is correct because the ovary produces one ovum each month, as well as the hormones progesterone and estrogen.

32 Easy

32 of 381

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Progesterone is secreted by

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Correct option: A

Corpus luteum

Option A (Corpus luteum) is correct because the corpus luteum, formed after ovulation, is the primary source of progesterone secretion.

33 Medium

33 of 381

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Which of the following hormones fall under the category of steroids?  a. Epinephrine;  b. Thyroid hormones,  c. Insulin,  d. Glucagon,  e. Cortisol,  f. Testosterone.   Choose the correct option.

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Correct option: D

Only e, f

Option D (Only e, f) is correct because cortisol and testosterone are steroid hormones, derived from cholesterol.

34 Easy

34 of 381

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Pituitary gland is derived from

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Correct option: A

Ectoderm

Option A (Ectoderm) is correct because the pituitary gland is embryologically derived from the ectoderm.

35 Easy

35 of 381

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Which hormone /gland acts as biological clocks?

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Correct option: D

Pineal

Option D (Pineal) is correct because the pineal gland secretes melatonin, which regulates sleep-wake cycles and acts as a biological clock.

36 Easy

36 of 381

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Which one of the following pair correctly matches a hormone with a disease resulting from its deficiency?

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Correct option: A

Parathyroid hormone— Tetany

Option A (Parathyroid hormone— Tetany) is correct because a deficiency in parathyroid hormone leads to hypocalcemia, which can cause tetany (muscle spasms).

37 Easy

37 of 381

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Name the hormone that stimulates the secretion of gastric juice.

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Correct option: D

Gastrin

Option D (Gastrin) is correct because gastrin is a hormone secreted by the stomach that stimulates the secretion of gastric juice (hydrochloric acid and pepsinogen).

38 Medium

38 of 381

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Heterocrine glands are the glands, which

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Correct option: C

Have dual (exo and endocrine) mode of function

Option C (Have dual (exo and endocrine) mode of function) is correct because heterocrine glands, also known as mixed glands, exhibit both exocrine and endocrine functions.

39 Easy

39 of 381

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MSH is produced by

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Correct option: D

Pars intermedia

Option D (Pars intermedia) is correct because MSH (Melanocyte-Stimulating Hormone) is produced by the pars intermedia of the pituitary gland.

40 Medium

40 of 381

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Significant role of calcium balance in the body is maintained by

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Correct option: B

PTH and TCT

Option B (PTH and TCT) is correct because PTH (parathyroid hormone) increases blood calcium levels, while TCT (thyrocalcitonin or calcitonin) decreases blood calcium levels, thus maintaining calcium balance.

41 Easy

41 of 381

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To yield more milk, cow is injected with

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Correct option: B

Prolactin

Option B (Prolactin) is correct because prolactin is the hormone responsible for milk production in mammals.

42 Medium

42 of 381

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Assertion: Anterior lobe of pituitary is attached
to hypothalamus by a vein.

Reason: This attachment is done through a
portal vein.

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Correct option: B

If both Assertion and Reason are true but Reason
is not the correct explanation of Assertion

The correct answer is B (If both Assertion and Reason are true but Reason is not the correct explanation of Assertion) because while both statements are correct, the portal vein's existence doesn't explain the attachment itself.

43 Easy

43 of 381

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In situation of fear, in blood there is increase of

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Correct option: C

Adrenaline

Option C is correct because adrenaline is released in response to fear, preparing the body for "fight or flight".

44 Medium

44 of 381

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Hormones produce their effect on target tissue by binding to specific proteins called as

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Correct option: D

Hormone receptors

Option D (Hormone receptors) is correct because hormones produce their effect on target tissues by binding to specific proteins called hormone receptors.

45 Easy

45 of 381

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Hypothyroidism causes

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Correct option: C

Both (a) and (b)

Option C (Both (a) and (b)) is correct because hypothyroidism in children causes cretinism, characterized by stunted growth and mental retardation, while hypothyroidism in adults causes myxoedema, characterized by swelling of the skin and tissues.

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46 Medium

46 of 381

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Identify the correct match.

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Correct option: B

Hormone – Vasopressin; Disorder due to hypo secretion – Diabetes insipidus

Option B (Hormone – Vasopressin; Disorder due to hypo secretion – Diabetes insipidus) is the correct match because a deficiency in vasopressin (ADH) secretion leads to diabetes insipidus, characterized by excessive urine production.

47 Hard

47 of 381

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Select the incorrect statement about pineal gland

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Correct option: D

Decreases blood

Ca^{+2}

level

Option D (Decreases blood

Ca^{+2}

level) is correct because the pineal gland does not directly regulate blood calcium levels. Calcitonin, secreted by the thyroid gland, decreases blood calcium levels.

48 Easy

48 of 381

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Progesterone pill helps in preventing pregnancy by not allowing

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Correct option: A

Ova formation

Option A (Ova formation) is correct because progesterone pills primarily prevent pregnancy by inhibiting ovulation, which is the process of ova formation.

49 Hard

49 of 381

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Blood pressure lowering hormone is secreted from an organ, present in

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Correct option: A

Thoracic cavity

Option A (Thoracic cavity) is correct because the atrial natriuretic peptide (ANP), a blood pressure lowering hormone, is secreted from the heart, which is present in the thoracic cavity.

50 Medium

50 of 381

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Oestrogen and testosterone are steroid hormones, and are the most likely bind to

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Correct option: D

Cytoplasmic receptors

Option D (Cytoplasmic receptors) is correct because steroid hormones like estrogen and testosterone bind to cytoplasmic receptors.

51 Easy

51 of 381

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Estrogen

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Correct option: D

All of the above

Option D (All of the above) is correct because estrogen stimulates the growth of ovarian follicles, the appearance of secondary sex characters, and the growth of mammary glands.

52 Easy

52 of 381

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The Leydig cells or …A… cells which are present in …B… . Spaces produce a group of hormone called androgens mainly …C…
Choose the correct option for A, B and C

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Correct option: D

A-interstitial cells, B-intertubular spaces, C-testosterone

Option D (A-interstitial cells, B-intertubular spaces, C-testosterone) is correct because Leydig cells (also known as interstitial cells) are found in the intertubular spaces and produce testosterone.

53 Medium

53 of 381

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Aldosterone is secreted by

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Correct option: A

Zona glomerulosa

Option A is correct because the zona glomerulosa of the adrenal cortex is responsible for the secretion of aldosterone.

54 Medium

54 of 381

Analyzing +4 | -1

Choose the incorrect statement w.r.t. endocrine system in the body.

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Correct option: C

Sertoli cells produce a group of hormones called androgens

Option C is the incorrect statement. Sertoli cells primarily support sperm development and secrete inhibin, not androgens.

55 Medium

55 of 381

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Increased metabolic rate in humans is due to

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Correct option: A

Hyperthyroidism

Option A (Hyperthyroidism) is correct because hyperthyroidism, an overactive thyroid, leads to excessive thyroid hormone production, resulting in an increased metabolic rate.

56 Medium

56 of 381

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Which hormones are called as Gonadotrophins

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Correct option: A

LH and FSH

Option A is correct because LH (Luteinizing Hormone) and FSH (Follicle-Stimulating Hormone) are collectively known as gonadotropins, as they stimulate the gonads (ovaries and testes).

57 Medium

57 of 381

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Fight or Flight hormones

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Correct option: C

Stimulate cAMP in the cytoplasm of their target cells

Option C (Stimulate cAMP in the cytoplasm of their target cells) is correct because adrenaline and noradrenaline often act through the cAMP second messenger system.

58 Easy

58 of 381

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Identify which of the following are endocrine glands? I. Liver, II. Gastric gland,  III. Pituitary gland, IV. Thyroid.   Choose the correct option

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Correct option: B

III and IV

Option B (III and IV) is correct because the pituitary gland and thyroid are endocrine glands, while the liver and gastric gland have other primary functions besides hormone secretion.

59 Easy

59 of 381

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GnRh (Gonadotropin Releasing Hormone) stimulates the

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Correct option: B

Pituitary for synthesis and release of gonadotropin

Option B (Pituitary for synthesis and release of gonadotropin) is correct because GnRH stimulates the anterior pituitary gland to synthesize and release gonadotropins (LH and FSH).

60 Easy

60 of 381

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Hormone is a/an

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Correct option: B

Chemical messenger

Option B (Chemical messenger) is correct because hormones are signaling molecules transported via the circulatory system to regulate physiology and behavior.

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