All the following statements about FSH are true except (A) It is a tropic hormone secreted by anterior pituitary (B) Its secretion is increased by gonadotropin releasing hormone (C) It acts on Sertoli cells (D) It increases the synthesis of testosterone

All the following statements about FSH are true except (A) It is a tropic hormone secreted by anterior pituitary (B) Its secretion is increased by gonadotropin releasing hormone (C) It acts on Sertoli cells (D) It increases the synthesis of testosterone
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In males, secretion of luteinising hormone is inhibited by (A) Gonadotropin releasing hormone (B) FSH (C) High blood level of testosterone (D) Inhibin

Description : In males, secretion of luteinising hormone is inhibited by (A) Gonadotropin releasing hormone (B) FSH (C) High blood level of testosterone (D) Inhibin

Last Answer : Answer : C

All the following statements about thyrotropin releasing hormone are true except (A) It is secreted by hypothalamus (B) It is a pentapeptide (C) It increases the secretion of TSH (D) Its secretion is inhibited by high level of T3 and T4 in blood

Description : All the following statements about thyrotropin releasing hormone are true except (A) It is secreted by hypothalamus (B) It is a pentapeptide (C) It increases the secretion of TSH (D) Its secretion is inhibited by high level of T3 and T4 in blood

Last Answer : Answer : B

GnRH, a hypothalamic hormone, needed in reproduction, acts on (a) anterior pituitary gland and stimulates secretion of LH and FSH (b) posterior pituitary gland and stimulates secretion of oxytocin and FSH (c) posterior pituitary gland and stimulates secretion of LH and relaxin (d) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Description : GnRH, a hypothalamic hormone, needed in reproduction, acts on (a) anterior pituitary gland and stimulates secretion of LH and FSH (b) posterior pituitary gland and stimulates secretion of oxytocin ... of LH and relaxin (d) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Last Answer : (a) anterior pituitary gland and stimulates secretion of LH and FSH

GnRH, a hypothalamic hormone, needed in reproduction, acts on: (1) anterior pituitary gland and stimulates secretion of LH and FSH. (2) posterior pituitary gland and stimulates secretion of oxytocin and FSH. (3) posterior pituitary gland and stimulates secretion of LH and relaxin. (4) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Description : GnRH, a hypothalamic hormone, needed in reproduction, acts on: (1) anterior pituitary gland and stimulates secretion of LH and FSH. (2) posterior pituitary gland and stimulates secretion of oxytocin and ... of LH and relaxin. (4) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Last Answer : 1) anterior pituitary gland and stimulates secretion of LH and FSH.

A 55-year-old male undergoes a total abdominal colectomy. Which of the following statement(s) is/are true concerning the hormonal response to the surgical procedure? a. Adrenocorticotropic hormone (ACTH) is secreted from the anterior pituitary gland b. ACTH stimulation results in elevation of serum cortisol levels for up to a week after the operation c. An increased secretion of aldosterone and ADH may contribute to postoperative fluid retention d. An increase in serum insulin and a fall in glucagon accelerate hepatic glucose production and maintain gluconeogenesis

Description : A 55-year-old male undergoes a total abdominal colectomy. Which of the following statement(s) is/are true concerning the hormonal response to the surgical procedure? a. Adrenocorticotropic ... in serum insulin and a fall in glucagon accelerate hepatic glucose production and maintain gluconeogenesis

Last Answer : Answer: a, c One of the earliest consequence of a surgical procedure is the rise in levels of circulating cortisol that occur in response to a sudden outpouring of ACTH ... hepatic glucose production, and, with other hormones (epinephrine and glucocorticoids), gluconeogenesis is maintained

Secretion of luteinising hormone is increased by (A) GnRH (B) FSH (C) Testosterone (D) None of these

Description : Secretion of luteinising hormone is increased by (A) GnRH (B) FSH (C) Testosterone (D) None of these

Last Answer : Answer : A

Sertoli cells are regulated by the pituitary hormone known as (a) LH (b) FSH (c) GH (d) prolactin

Description : Sertoli cells are regulated by the pituitary hormone known as (a) LH (b) FSH (c) GH (d) prolactin

Last Answer : FSH

Antidiuretic hormone (A) Is secreted by hypothalamus (B) Secretion is increased when osmolality of plasma decreases (C) Increases obligatory reabsorption of water (D) Acts on distal convoluted tubules and collecting ducts

Description : Antidiuretic hormone (A) Is secreted by hypothalamus (B) Secretion is increased when osmolality of plasma decreases (C) Increases obligatory reabsorption of water (D) Acts on distal convoluted tubules and collecting ducts

Last Answer : Answer : D

16.15 The hypothalamic gonadotropin releasing hormone (GnRH) is: A. A single peptide B. A mixture of two distinct peptides FSH-RH and LH-RH C. A mixture of several peptides D. Dopamine

Description : 16.15 The hypothalamic gonadotropin releasing hormone (GnRH) is: A. A single peptide B. A mixture of two distinct peptides FSH-RH and LH-RH C. A mixture of several peptides D. Dopamine

Last Answer : A. A single peptide

The hormone measured in urine to test pregnancy is (A) Anterior pituitary luteinizing hormone (B) Androgen (C) Progesterone (D) Choroinic gonadotropin

Description : The hormone measured in urine to test pregnancy is (A) Anterior pituitary luteinizing hormone (B) Androgen (C) Progesterone (D) Choroinic gonadotropin

Last Answer : Answer : D

All the following statements about TSH are true except (A) It is a tropic hormone (B) It acts on para-follicular cells of thyroid glands (C) Its receptors are membrane-bound (D) Its second messenger is cyclic AMP

Description : All the following statements about TSH are true except (A) It is a tropic hormone (B) It acts on para-follicular cells of thyroid glands (C) Its receptors are membrane-bound (D) Its second messenger is cyclic AMP

Last Answer : Answer : B

Placenta secretes all of the following except (A) FSH (B) Progesterone (C) Estrogen (D) Chorionic gonadotropin HORMONE METABOLISM 225

Description : Placenta secretes all of the following except (A) FSH (B) Progesterone (C) Estrogen (D) Chorionic gonadotropin HORMONE METABOLISM 225

Last Answer : Answer : A

What is correct to say about the hormone action in humans? (a) Glucagon is secreted by β-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.

Description : What is correct to say about the hormone action in humans? (a) Glucagon is secreted by β-cells of islets of Langerhans and stimulates glycogenolysis. (b) Secretion of thymosins is stimulated ... receptors on ovarian cell membrane. (d) FSH stimulates the secretion of estrogen and progesterone.

Last Answer : (c) In females, FSH first binds with specific receptors on ovarian cell membrane.

What is correct to say about the hormone action in humans ? (1) FSH stimulates the secretion of estrogen and progesterone (2) Glucagon is secreted by -cells of Islets of Langerhans and stimulates glycogenolysis (3) Secretion of thymosins is stimulated with aging (4) If females, FSH first binds with specific receptors on ovarian cell membrane

Description : What is correct to say about the hormone action in humans ? (1) FSH stimulates the secretion of estrogen and progesterone (2) Glucagon is secreted by -cells of Islets of Langerhans and ... stimulated with aging (4) If females, FSH first binds with specific receptors on ovarian cell membrane

Last Answer : (4) If females, FSH first binds with specific receptors on ovarian cell membrane

Melanocyte stimulating hormone is secreted by (A) Pineal gland (B) Anterior lobe of pituitary gland (C) Posterior lobe of pituitary gland (D) Intermediate lobe of pituitary gland

Description : Melanocyte stimulating hormone is secreted by (A) Pineal gland (B) Anterior lobe of pituitary gland (C) Posterior lobe of pituitary gland (D) Intermediate lobe of pituitary gland

Last Answer : Answer : D

A hormone secreted from anterior pituitary is (A) Growth hormone (B) Vasopressin (C) Oxytocin (D) Epinephrine

Description : A hormone secreted from anterior pituitary is (A) Growth hormone (B) Vasopressin (C) Oxytocin (D) Epinephrine

Last Answer : Answer : A

Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH is no longer released from the hypothalamus. C) Uterine stretching sends nerve impulses to the hypothalamus that releases oxytocin that triggers uterine contraction. D) FSH and LH stimulate the gonads to produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus

Testosterone is produced by (a) sertoli cells (b) Leydig’s cells (c) oxyntic cells (d) pituitary gland.

Description : Testosterone is produced by (a) sertoli cells (b) Leydig’s cells (c) oxyntic cells (d) pituitary gland.

Last Answer : (b) Leydig’s cells

Select the incorrect statement. (a) LH and FSH decrease gradually during the follicular phase. (b) LH triggers secretion of androgens from the Leydig cells. (c) FSH stimulates the Sertoli cells which help in spermiogenesis. (d) LH triggers ovulation in ovary.

Description : Select the incorrect statement. (a) LH and FSH decrease gradually during the follicular phase. (b) LH triggers secretion of androgens from the Leydig cells. (c) FSH stimulates the Sertoli cells which help in spermiogenesis. (d) LH triggers ovulation in ovary.

Last Answer : (a) LH and FSH decrease gradually during the follicular phase.

What is the cascade of events that follows a stress or trauma to produce adrenal reaction? A) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex mineralocorticoids and glucocorticoids (regulate metabolism and sugar level) B) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex epinephrine and norepinephrine (regulate metabolism and sugar level) C) anterior pituitary (ACTH)-hypothalamus (ACTH-releasing hormone)-adrenal cortex hormones D) adrenal cortex (hormones)-anterior pituitary (ACTH)-hypothalamus (ACTH-releasing hormone) E) adrenal cortex (hormones)-hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)

Description : What is the cascade of events that follows a stress or trauma to produce adrenal reaction? A) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex mineralocorticoids and ... ) E) adrenal cortex (hormones)-hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)

Last Answer : A) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex mineralocorticoids and glucocorticoids (regulate metabolism and sugar level)

A pheromone is A) an endorphin released within the anterior pituitary. B) a growth factor related to the production of tumors. C) a product of a neurosecretory cell that acts on neighboring cells. D) a chemical released by one animal to affect the behavior of another animal. E) a regulatory hormone that stimulates or inhibits the release of hormones produced by other endocrine glands.

Description : A pheromone is A) an endorphin released within the anterior pituitary. B) a growth factor related to the production of tumors. C) a product of a neurosecretory cell that acts on ... ) a regulatory hormone that stimulates or inhibits the release of hormones produced by other endocrine glands.

Last Answer : D) a chemical released by one animal to affect the behavior of another animal.

Secretion of glucocorticoida is regulated by all the following except (A) Hypothalamus (B) Anterior pituitary (C) Feedback control by blood glucose (D) Feedback control by glucocorticoids

Description : Secretion of glucocorticoida is regulated by all the following except (A) Hypothalamus (B) Anterior pituitary (C) Feedback control by blood glucose (D) Feedback control by glucocorticoids

Last Answer : Answer : C

All the following statements about ACTH are true except (A) It is a tropic hormone (B) Its target cells are located in adrenal cortex (C) Its receptors are located in the cell membrane (D) Its second messenger is inositol triphosphate

Description : All the following statements about ACTH are true except (A) It is a tropic hormone (B) Its target cells are located in adrenal cortex (C) Its receptors are located in the cell membrane (D) Its second messenger is inositol triphosphate

Last Answer : Answer : D

Finasteride acts by: A. Blocking testosterone receptors in the prostate gland B. Reducing testosterone secretion from testes C. Reducing LH secretion from pituitary D. Lowering circulating as well as prostatic dihydrotestosterone concentration

Description : Finasteride acts by: A. Blocking testosterone receptors in the prostate gland B. Reducing testosterone secretion from testes C. Reducing LH secretion from pituitary D. Lowering circulating as well as prostatic dihydrotestosterone concentration

Last Answer : D. Lowering circulating as well as prostatic dihydrotestosterone concentration

All of the following statements about pancreatic somatostain are true except (A) It is secreted by δ cells of islets of Langerhans (B) It stimulates the secretion of gastrin (C) It inhibits the secretion of secretin (D) It inhibits the secretion of cholecystokininpancreozymin

Description : All of the following statements about pancreatic somatostain are true except (A) It is secreted by δ cells of islets of Langerhans (B) It stimulates the secretion of gastrin (C) It inhibits the secretion of secretin (D) It inhibits the secretion of cholecystokininpancreozymin

Last Answer : Answer : B

Secretion of androgens is increased by (A) LH (B) FSH (C) ACTH (D) Growth hormone

Description : Secretion of androgens is increased by (A) LH (B) FSH (C) ACTH (D) Growth hormone

Last Answer : Answer : A

Anti-diuretic diuretic hormone (ADH) a. is synthesized by the posterior lobe of the pituitary gland b. is released by neurosecretion c. its secretion is increased by a low plasma osmolarity d. increases the permeability of the distal convoluted tubule

Description : Anti-diuretic diuretic hormone (ADH) a. is synthesized by the posterior lobe of the pituitary gland b. is released by neurosecretion c. its secretion is increased by a low plasma osmolarity d. increases the permeability of the distal convoluted tubule

Last Answer : is released by neurosecretion

All the following statements about proopiomelanocortin are true except (A) It is made up of 285 amino acids (B) It is synthesised in pars intermedia and anterior lobe of pituitary gland (C) It is the precursor of ACTH and melatonin (D) It is the precursor of corticotropin like intermediate lobe peptide and endorphins 218 MCQs IN BIOCHEMISTRY

Description : All the following statements about proopiomelanocortin are true except (A) It is made up of 285 amino acids (B) It is synthesised in pars intermedia and anterior lobe of pituitary gland ... ) It is the precursor of corticotropin like intermediate lobe peptide and endorphins 218 MCQs IN BIOCHEMISTRY

Last Answer : Answer : C

In males, luteinising hormone acts on (A) Leydig cells (B) Sertoli cells (C) Prostate gland (D) All of these

Description : In males, luteinising hormone acts on (A) Leydig cells (B) Sertoli cells (C) Prostate gland (D) All of these

Last Answer : Answer : A

Sertoli cells are regulated by the pituitary hormone known as

Description : Sertoli cells are regulated by the pituitary hormone known as

Last Answer : Sertoli cells are regulated by the pituitary hormone known as A. FSH B. GH C. Prolactin D. LH

Sertoli cells are regulated by the pituitary hormone known as

Description : Sertoli cells are regulated by the pituitary hormone known as

Last Answer : Sertoli cells are regulated by the pituitary hormone known as A. Prolactin B. LH C. FSH D. GH

The gonadotrophic hormones are secreted by (a) anterior lobe of pituitary (b) interstitial cells of testes (c) adrenal cortex (d) posterior part of thyroid.

Description : The gonadotrophic hormones are secreted by (a) anterior lobe of pituitary (b) interstitial cells of testes (c) adrenal cortex (d) posterior part of thyroid.

Last Answer : (a) anterior lobe of pituitary

Chlorpromazine therapy increases the secretion of the following hormone: A. Prolactin B. Gonadotropin C. Corticotropin D. Antidiuretic hormone

Description : Chlorpromazine therapy increases the secretion of the following hormone: A. Prolactin B. Gonadotropin C. Corticotropin D. Antidiuretic hormone

Last Answer : A. Prolactin

The following are true about the antidiuretic hormone: a. it is produced by the anterior pituitary gland b. it reduces the cardiac output c. it increases the renal absorption of sodium d. it decreases the release of ACTH

Description : The following are true about the antidiuretic hormone: a. it is produced by the anterior pituitary gland b. it reduces the cardiac output c. it increases the renal absorption of sodium d. it decreases the release of ACTH

Last Answer : it increases the renal absorption of sodium

Somatotropin is secreted by (A) Hypothalamus (B) Anterior pituitary (C) Posterior pituitary (D) Thyroid gland

Description : Somatotropin is secreted by (A) Hypothalamus (B) Anterior pituitary (C) Posterior pituitary (D) Thyroid gland

Last Answer : Answer : B

Select the correct option describing gonadotropin activity in a normal pregnant female. (a) High level of FSH and LH stimulates the thickening of endometrium. (b) High level of FSH and LH facilitates implantation of the embryo. (c) High level of hCG stimulates the synthesis of estrogen and progesterone. (d) High level of hCG stimulates the thickening of endometrium.

Description : Select the correct option describing gonadotropin activity in a normal pregnant female. (a) High level of FSH and LH stimulates the thickening of endometrium. (b) High level of FSH and LH ... synthesis of estrogen and progesterone. (d) High level of hCG stimulates the thickening of endometrium.

Last Answer : (c) High level of hCG stimulates the synthesis of estrogen and progesterone.

In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was (1) High level of circulating HCG to stimulate estrogen and progesterone synthesis (2) High level of circulating FSH and LH in the uterus to stimulate implantation of the embryo (3) High level of circulating HCG to stimulate endometrial thickening (4) High levels of FSH and LH in uterus to stimulate endometrial thickening

Description : In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was (1) High level of circulating HCG to stimulate estrogen and progesterone synthesis (2) ... endometrial thickening (4) High levels of FSH and LH in uterus to stimulate endometrial thickening

Last Answer : (1) High level of circulating HCG to stimulate estrogen and progesterone synthesis

True statements about aldosterone include: a. secretion is mainly under the control of adrenocorticotrophic (ACTH) hormone secretion b. increases hepatic gluconeogenesis c. its secretion is stimulated by angiotensin d. in the kidney, mainly acts on the proximal convoluted tubules

Description : True statements about aldosterone include: a. secretion is mainly under the control of adrenocorticotrophic (ACTH) hormone secretion b. increases hepatic gluconeogenesis c. its secretion is stimulated by angiotensin d. in the kidney, mainly acts on the proximal convoluted tubules

Last Answer : its secretion is stimulated by angiotensin

All of the following statements about cholecystokinin pancreozymin are true except (A) It is secreted by mucosa of small intestine (B) It stimulates secretion of pancreatic juice rich in enzymes (C) It stimulates contraction of gall bladder (D) It inhibits gastric motility

Description : All of the following statements about cholecystokinin pancreozymin are true except (A) It is secreted by mucosa of small intestine (B) It stimulates secretion of pancreatic juice rich in enzymes (C) It stimulates contraction of gall bladder (D) It inhibits gastric motility

Last Answer : Answer : D

Secretion of PTH is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback effect of plasma PTH (D) Feedback effect of plasma calcium

Description : Secretion of PTH is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback effect of plasma PTH (D) Feedback effect of plasma calcium

Last Answer : Answer : D

Secretion of thyroid hormones is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback regulation (D) All of these 220 MCQs IN BIOCHEMISTRY

Description : Secretion of thyroid hormones is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback regulation (D) All of these 220 MCQs IN BIOCHEMISTRY

Last Answer : Answer : D

Gonadotropin releasing hormone is formed by

Description : Gonadotropin releasing hormone is formed by

Last Answer : Gonadotropin releasing hormone is formed by A. Adenohypophysis B. Pars intermedia C. Neurohypophysis D. Hypothalamus.

When both ovaries are removed from rat then which hormone is decreased in blood? (a) Oxytocin (b) Prolactin (c) Estrogen (d) Gonadotropin releasing factor

Description : When both ovaries are removed from rat then which hormone is decreased in blood? (a) Oxytocin (b) Prolactin (c) Estrogen (d) Gonadotropin releasing factor

Last Answer : (c) Estrogen

Gonadotropin releasing hormone (GnRH) stimulates the release of: a) ACTH. b) Growth hormone. c) Leutinising Hormone (LH). d) Thyroid stimulating hormone (TSH). e) Opiate peptides.

Description : Gonadotropin releasing hormone (GnRH) stimulates the release of: a) ACTH. b) Growth hormone. c) Leutinising Hormone (LH). d) Thyroid stimulating hormone (TSH). e) Opiate peptides.

Last Answer : c) Leutinising Hormone (LH).

16.5 Octreotide is a long acting synthetic analogue of: A. Prolactin B. Growth hormone C. Somatostatin D. Gonadotropin releasing hormone

Description : 16.5 Octreotide is a long acting synthetic analogue of: A. Prolactin B. Growth hormone C. Somatostatin D. Gonadotropin releasing hormone

Last Answer : D. All of the above

The following hypothalamic regulatory hormone is not a peptide: A. Growth hormone release inhibitory hormone B. Prolactin release inhibitory hormone C. Gonadotropin releasing hormone D. Corticotropin releasing hormone (

Description : The following hypothalamic regulatory hormone is not a peptide: A. Growth hormone release inhibitory hormone B. Prolactin release inhibitory hormone C. Gonadotropin releasing hormone D. Corticotropin releasing hormone (

Last Answer : B. Prolactin release inhibitory hormone

The hypothalamic-releasing hormones directly control the A) adrenal cortex. B) thyroid. C) anterior pituitary. D) posterior pituitary. E) pancreas.

Description : The hypothalamic-releasing hormones directly control the A) adrenal cortex. B) thyroid. C) anterior pituitary. D) posterior pituitary. E) pancreas.

Last Answer : C) anterior pituitary.

Select the option which correctly matches the endocrine gland with its hormone and its function. Endocrine Hormone Function gland (a) Placenta Estrogen Initiates secretion of the milk (b) Corpus Estrogen Essential for luteum maintenance of endometrium (c) Leydig’s Androgen Initiates the cells production of sperms (d) Ovary FSH Stimulates follicular development and the secretion of estrogens

Description : Select the option which correctly matches the endocrine gland with its hormone and its function. Endocrine Hormone Function gland (a) Placenta Estrogen Initiates secretion of the milk (b) Corpus ... of sperms (d) Ovary FSH Stimulates follicular development and the secretion of estrogens

Last Answer : (c) Leydig’s Androgen Initiates the cells production of sperms