Description : All the following statements about TSH are true except (A) It is a glycoprotein (B) It is made up of α- and β-subunits (C) Receptor recognition involves both the subunits (D) Its subunit is identical with those of FSH and LH
Last Answer : Answer : D
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).
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
Description : Select the hormone INCORRECTLY paired with its target. a) TSH - thyroid gland b) ACTH - anterior pituitary c) LH - ovary or testis d) MSH - melanocytes (pron: meh-lan-o-cite)
Last Answer : ANSWER: D -- MSH - MELANOCYTES
Description : The hypothalamus contains cells which are sensitive to: a. PO2 b. arterial blood pressure c. [H+] d. TSH (thyroid-stimulating hormone) concentration
Last Answer : TSH (thyroid-stimulating hormone) concentration
Description : Insulin receptor is made up of (A) One α-and one β-subunit (B) Two α-and two β-subunit (C) Two, α two β-and two γ-subunit (D) One α, one β-one γ-and one δ-subunit
Last Answer : Answer : B
Description : The nucleotide binding site of G-proteins is present on their (A) α-Subunit (B) β-Subunit α- and β- (C) γ-Subunit (D) δ-Subunit
Last Answer : Answer : A
Description : Secretion of androgens is increased by (A) LH (B) FSH (C) ACTH (D) Growth hormone
Description : In the insulin receptor, tyrosine kinase domain is present in (A) α-Subunits (B) β-Subunits (C) γ-Subunits (D) δ-Subunits
Description : Insulin binding sites are present on the (A) α-subunits of insulin receptor (B) β-subunits of insulin receptor (C) γ-subunits of insulin receptor (D) α-and β−subunits of insulin receptor
Description : All of the following can be formed from pro-opiomelanocortin except (A) α-and β-MSH (B) β-and γ-Lipotropins (C) α-and β-Endorphins(D) FSH
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
Description : The number of amino acids in prolactin is (A) 134 (B) 146 (C) 172 (D) 199
Description : Which of the following hormone levels will cause release of ovum (ovulation) from the Graffian follicle? (a) High concentration of Estrogen (b) High concentration of Progesterone (c) Low concentration of LH (d) Low concentration of FSH
Last Answer : a) High concentration of Estrogen
Description : Sertoli cells are regulated by the pituitary hormone known as (a) LH (b) FSH (c) GH (d) prolactin
Last Answer : FSH
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
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
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.
Description : What is follicle stimulating hormone (FSH)? -Biology
Last Answer : answer:
Description : The leyding cell activity is controlled by (A) Intestitial cell stimulating hormone (B) Adernocortex stimulating hormone (C) Thyroid stimulating hormone (D) Melanocyte stimulating harmone
Description : The production of progesterone by corpus luteum cell is stimulated by (A) LH (B) TSH (C) ACTH (D) MSH
Description : Cyclic AMP acts as the second messenger for all of the following except (A) Oxytocin (B) TSH (C) ACTH (D) FSH 216 MCQs IN BIOCHEMISTRY
Description : Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above
Last Answer : all above
Description : What is the advantage of a recombinant subunit vaccine? a. it can't cause disease b. adverse reactions are rare because only the important subunits of the antigen are included c. the vaccine is not made from blood fragments d. A-C are correct
Last Answer : d. A-C are correct
Description : The essential amino acids (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements
Description : The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements
Description : In structure and function, HCG resembles (A) FSH (B) LH (C) GnRH (D) Progesterone
Description : Melanogenesis is stimulated by (A) MSH (B) FSH (C) LH (D) HCG
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.
Description : What is the role of thyroid stimulating hormone? -Biology
Description : Which hormone causes acromegaly if present in abnormally high concentrations in an adult? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : A) growth hormone
Description : Which hormone stimulates the production of estrogen and progesterone? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : C) gonadotropic hormones
Description : Which hormone stimulates the production of cortisol? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : E) adrenocorticotropic hormone
Description : The part of the brain controlling the anterior pituitary gland secretions is the A) medulla. B) thalamus. C) cerebral cortex. D) hypothalamus. E) cerebellum. Answer: D ... B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone
Last Answer : B) thalamus.
Description : The fatty acids containing even number and odd number of carbon atoms as well as the unsaturated fatty acids are oxidized by (A) α-oxidation (B) β-oxidation (C) ω-oxidation (D) All of these
Description : Corticotropin releasing hormone controls the direct release of (A) Pro-opiomelanocortin (B) α MSH (C) β MSH (D) Endorphins
Description : In the biosynthesis of the iron protoporphyrin, the product of the condensation between succinyl-CoA and glycine is (A) α-Amino β-ketoadipic acid (B) δ-Aminolevulinate (C) Hydroxymethylbilane (D) Uroporphyrinogen I
Description : Adenylate cyclase is activated by (A) GDP-bearing α-Subunit of G-protein (B) GTP-bearing α-Subunit of G-protein (C) GDP-bearing γ-Subunit of G-protein (D) GTP-bearing γ-Subunit of G-protein
Description : Fatty acids are oxidized by (A) α -oxidation (B) β -oxidation (C) ω -oxidation (D) All of these
Description : High level of T3 and T4 and low TSH in serum indicates (A) Hyperthyroidism of pituitary origin (B) Hypothyroidism of pituitary origin (C) Hyperthyroidism of thyroid origin (D) Hypothyroidism of thyroid origin
Last Answer : Answer : C
Description : Administration of TSH increases serum T3 and T4 in (A) Hyperthyroidism of pituitary origin (B) Hyperthyroidism of thyroid origin (C) Hypothyroidism of pituitary origin (D) Hypothyroidism of thyroid origin
Description : α-Subunits of insulin receptor are present (A) Outside the cell membrane (B) In the cell membrane (C) Across the cell membrane (D) In the cytosol
Description : β-Subunits of insulin receptor are present (A) Outside the cell membrane (B) In the cell membrane (C) Across the cell membrane (D) In the cytosol
Description : Hormone receptors that stimulate cAMP production (A) are part of a complex of two proteins that transform the external signal into internal cAMP production (B) are proteins distinct and separate from those ... binding of the hormone (D) are not very specific and bind a number of different hormones
Description : Hormone receptors possess all the following properties except (A) All of them are proteins (B) They possess a recognition domain (C) They bind hormones with a high degree of specificity (D) Number of receptors in a target cell is constant
Description : LH and FSH are called gonadotrophins. Why?
Last Answer : LH and FSH are called gonadotrophins. Why?
Description : Assertion : The level of FSH & LH attain a peak level in the middle of the menstrual cycle . Reason : The FSH & LH surge induces rupture of Graafian f
Last Answer : Assertion : The level of FSH & LH attain a peak level in the middle of the menstrual cycle . Reason ... . D. If both Assertion & Reason are False.
Description : LH and FSH are collectively called
Last Answer : LH and FSH are collectively called A. Oxytocin B. Somatotrophins C. Luteotrophic D. Gonadotropin
Description : How are the FSH and LH are released by the hypothalamus?
Last Answer : Need answer