Thyrotropin releasing hormone is a (A) Dipeptide (B) Tripeptide (C) Octapeptide (D) Decapeptide

Thyrotropin releasing hormone is a (A) Dipeptide (B) Tripeptide (C) Octapeptide (D) Decapeptide
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Met-enkephalin is a (A) Tripeptide (B) Pentapeptide (C) Octapeptide (D) Decapeptide

Description : Met-enkephalin is a (A) Tripeptide (B) Pentapeptide (C) Octapeptide (D) Decapeptide

Last Answer : Answer : B

Glutathione is a (A) Dipeptide (B) Tripeptide (C) Polypeptide (D) None of these

Description : Glutathione is a (A) Dipeptide (B) Tripeptide (C) Polypeptide (D) None of these

Last Answer : Answer : B

When egg albumin is heated till it is coagulated, the secondary and tertiary structures of the proteins are completely lost resulting in a mixture of randomly arranged (A) Dipeptide chains (B) Tripeptide chains (C) Polypeptide chains(D) All of these

Description : When egg albumin is heated till it is coagulated, the secondary and tertiary structures of the proteins are completely lost resulting in a mixture of randomly arranged (A) Dipeptide chains (B) Tripeptide chains (C) Polypeptide chains(D) All of these

Last Answer : Answer : C

The end product of protein digestion in G.I.T. is (A) Dipeptide (B) Tripeptide (C) Polypeptide (D) Amino acid

Description : The end product of protein digestion in G.I.T. is (A) Dipeptide (B) Tripeptide (C) Polypeptide (D) Amino acid

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Glucagon activates the enzyme adenylcyclase which causes the increase of blood sugar level. Hence this hormone is called (A) Hypoglycemic factor (B) Hyper glycemic factor (C) Antidiauritic factor (D) Thyrotropin-releasing factor

Description : Glucagon activates the enzyme adenylcyclase which causes the increase of blood sugar level. Hence this hormone is called (A) Hypoglycemic factor (B) Hyper glycemic factor (C) Antidiauritic factor (D) Thyrotropin-releasing factor

Last Answer : Answer : B

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

A nonapeptide among the following is (A) Antidiuretic hormone (B) Insulin (C) ACTH (D) Thyrotropin releasing hormone

Description : A nonapeptide among the following is (A) Antidiuretic hormone (B) Insulin (C) ACTH (D) Thyrotropin releasing hormone

Last Answer : Answer : A

Which ONE of the following is true concerning Antidiuretic hormone(ADH)? 1) Carbamazepine potentiates it's release 2) Ethanol potentiates it's release 3) It circulates in the blood bound to neurohypophysin 4) It is a cyclic octapeptide 5) It is synthesised in the posterior pituitary

Description : Which ONE of the following is true concerning Antidiuretic hormone(ADH)? 1) Carbamazepine potentiates it's release 2) Ethanol potentiates it's release 3) It circulates in the blood bound to neurohypophysin 4) It is a cyclic octapeptide 5) It is synthesised in the posterior pituitary

Last Answer : Answers-1 ADH is a nonapeptide manufactured in the paraventricular and supra-optic nuclei of the hypothalamus and released from the posterior pituitary. It acts on the collecting ducts improving ... agents such as thiazides and SSRIs may potentiate its release. Ethanol usually inhibits release.

3- Somatostatin inhibits the release of: A. Growth hormone B. Insulin C. Thyrotropin D. All of the above

Description : 3- Somatostatin inhibits the release of: A. Growth hormone B. Insulin C. Thyrotropin D. All of the above

Last Answer : 3- Somatostatin inhibits the release of: A. Growth hormone B. Insulin C. Thyrotropin D. All of the above

16.6 Somatostatin inhibits the release of: A. Growth hormone B. Insulin C. Thyrotropin D. All of the above

Description : 16.6 Somatostatin inhibits the release of: A. Growth hormone B. Insulin C. Thyrotropin D. All of the above

Last Answer : D. All of the above

All the following statements about angiotensin are true except (A) Its precursor is an α2-globulin (B) Its active form is an octapeptide (C) It is a vasodilator (D) It increases the secretion of aldosterone

Description : All the following statements about angiotensin are true except (A) Its precursor is an α2-globulin (B) Its active form is an octapeptide (C) It is a vasodilator (D) It increases the secretion of aldosterone

Last Answer : Answer : C

Corticotropin releasing hormone controls the direct release of (A) Pro-opiomelanocortin (B) α MSH (C) β MSH (D) Endorphins

Description : Corticotropin releasing hormone controls the direct release of (A) Pro-opiomelanocortin (B) α MSH (C) β MSH (D) Endorphins

Last Answer : Answer : A

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 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

Description : 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

Last Answer : Answer : D

Regulation of ACTH secretion occurs through (A) Corticotropin releasing hormone (CRH) and corticotropin release inhibiting hormone (CRIH) of hypothalamus (B) Feedback inhibition by cortisol (C) CRH and feedback inhibition by cortisol (D) CRIH and feedback inhibition by cortisol

Description : Regulation of ACTH secretion occurs through (A) Corticotropin releasing hormone (CRH) and corticotropin release inhibiting hormone (CRIH) of hypothalamus (B) Feedback inhibition by cortisol (C) CRH and feedback inhibition by cortisol (D) CRIH and feedback inhibition by cortisol

Last Answer : Answer : C

Secretion of prolactin is regulated by (A) Feedback inhibition (B) Prolactin releasing hormone (C) Prolactin release inhibiting hormone (D) All of these

Description : Secretion of prolactin is regulated by (A) Feedback inhibition (B) Prolactin releasing hormone (C) Prolactin release inhibiting hormone (D) All of these

Last Answer : Answer : C

Secretion of somatotrophin is promoted by (A) Somatomedin C (B) Somatostatin (C) Growth hormone releasing hormone (D) Hypoglycaemia

Description : Secretion of somatotrophin is promoted by (A) Somatomedin C (B) Somatostatin (C) Growth hormone releasing hormone (D) Hypoglycaemia

Last Answer : Answer : C

Growth hormone is released by (A) Somatostatin (B) Growth hormone releasing hormone (C) Prolactin release inhibiting hormone (D) Luteinizing releasing hormone

Description : Growth hormone is released by (A) Somatostatin (B) Growth hormone releasing hormone (C) Prolactin release inhibiting hormone (D) Luteinizing releasing hormone

Last Answer : Answer : B

Which of the following is a dipeptide? (A) Anserine (B) Glutathione (C) Glucagon (D) β -Lipoprotein

Description : Which of the following is a dipeptide? (A) Anserine (B) Glutathione (C) Glucagon (D) β -Lipoprotein

Last Answer : Answer : A

What is a dipeptide?

Description : What is a dipeptide?

Last Answer : Two amino acids are combined to form a dipep- tide

In glutathione (a tripeptide) is present apart from Glutamic acid and cysteine: (A) Serine (B) Glycine (C) Leucine (D) Phenyl alanine

Description : In glutathione (a tripeptide) is present apart from Glutamic acid and cysteine: (A) Serine (B) Glycine (C) Leucine (D) Phenyl alanine

Last Answer : Answer : B

A tripeptide functioning as an important reducing agent in the tissues is (A) Bradykinin (B) Kallidin (C) Tyrocidin (D) Glutathione

Description : A tripeptide functioning as an important reducing agent in the tissues is (A) Bradykinin (B) Kallidin (C) Tyrocidin (D) Glutathione

Last Answer : Answer : D

Which of the following is a tripeptide? (A) Anserine (B) Oxytocin (C) Glutathione (D) Kallidin

Description : Which of the following is a tripeptide? (A) Anserine (B) Oxytocin (C) Glutathione (D) Kallidin

Last Answer : Answer : C

Angiotensin II: a. is an octapeptide b. is produced mainly in the lungs c. causes thirst d. all

Description : Angiotensin II: a. is an octapeptide b. is produced mainly in the lungs c. causes thirst d. all

Last Answer : all

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.

Which of the following is hormone releasing IUD ?

Description : Which of the following is hormone releasing IUD ?

Last Answer : Which of the following is hormone releasing IUD ? A. Lippes loop B. Cu7 C. LNG-20 D. Multiload 375

Which of the following is a hormone releasing Intra Uterine Device (IUD)? (a) Multiload 375 (b) LNG - 20 (c) Cervical cap (d) Vault

Description : Which of the following is a hormone releasing Intra Uterine Device (IUD)? (a) Multiload 375 (b) LNG - 20 (c) Cervical cap (d) Vault

Last Answer : b) LNG - 20

Which of the following is hormone-releasing IUD? (a) LNG-20 (b) Multiload 375 (c) Lippes Loop (d) Cu7

Description : Which of the following is hormone-releasing IUD? (a) LNG-20 (b) Multiload 375 (c) Lippes Loop (d) Cu7

Last Answer : (a) LNG-20

Select the hormone-releasing Intra-Uterine Devices. (a) Lippes Loop, Multiload 375 (b) Vaults, LNG-20 (c) Multiload 375, Progestasert (d) Progestasert, LNG-20

Description : Select the hormone-releasing Intra-Uterine Devices. (a) Lippes Loop, Multiload 375 (b) Vaults, LNG-20 (c) Multiload 375, Progestasert (d) Progestasert, LNG-20

Last Answer : (d) Progestasert, LNG-20

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).

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)

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

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

Trapping of iodide by the following organ/organs is enhanced by thyrotropin: A. Thyroid B. Salivary gland C. Placenta D. All of the abov

Description : Trapping of iodide by the following organ/organs is enhanced by thyrotropin: A. Thyroid B. Salivary gland C. Placenta D. All of the abov

Last Answer : A. Thyroid

Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trappin

Description : Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trappin

Last Answer : B. Inhibits proteolysis of thyroglobulin

17.1 Trapping of iodide by the following organ/organs is enhanced by thyrotropin: A. Thyroid B. Salivary gland C. Placenta D. All of the abov

Description : 17.1 Trapping of iodide by the following organ/organs is enhanced by thyrotropin: A. Thyroid B. Salivary gland C. Placenta D. All of the abov

Last Answer : A. Thyroid

16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Description : 16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Last Answer : B. Inhibits proteolysis of thyroglobulin

Streptomycin prevents synthesis of polypeptide by (A) Inhibiting initiation process (B) Releasing premature polypeptide (C) Inhibiting peptidyl transferase activity (D) Inhibiting translocation

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Last Answer : Answer : A

Tetracylin prevents synthesis of polypeptide by (A) Blocking mRNA formation from DNA (B) Releasing peptides from mRNA-tRNA complex (C) Competing with mRNA for ribosomal binding sites (D) Preventing binding of aminoacyl tRNA

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Last Answer : Answer : D

AUG, the only identified codon for methionine is important as (A) A releasing factor for peptide chains (B) A chain terminating codon (C) Recognition site on tRNA (D) A chain initiating codon

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Last Answer : Answer : D

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