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
Last Answer : Answer : A
Description : The level of sodium in the blood is regulated by the secretion of A) oxytocin. B) insulin. C) cortisol. D) aldosterone. E) ACTH.
Last Answer : D) aldosterone.
Description : Secretion of androgens is increased by (A) LH (B) FSH (C) ACTH (D) Growth hormone
Description : A hormone which cannot cross the blood brain barrier is (A) Epinephrine (B) Aldosterone (C) ACTH (D) TSH
Description : ACTH stimulates the secretion of (A) Glucocorticoids (B) Epinephrine (C) Thyroxine (D) Luteinizing hormone
Description : The hormone activating the glycogen synthase activity is (A) Insulin (B) Glucagon (C) Epinephrine (D) ACTH
Description : Gastric Secretion is regulated by the hormone: (A) Glucagon (B) Gastrin (C) Epinephrin (D) ACTH
Last Answer : Answer : B
Description : Secretion of MSH is regulated by (A) Feedback mechanism (B) Melatonin (C) Hypothalamic hormones (D) ACTH HORMONE METABOLISM 217
Last Answer : Answer : C
Description : A hormone secreted from anterior pituitary is (A) Growth hormone (B) Vasopressin (C) Oxytocin (D) Epinephrine
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 : 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 : 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 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)
Description : Sertoli cells are regulated by the pituitary hormone known as (a) LH (b) FSH (c) GH (d) prolactin
Last Answer : FSH
Description : Which hormone will stimulate the release of milk from the mother's mammary glands when a baby is nursing? A) oxytocin B) prolactin C) ADH D) HGH E) epinephrine
Last Answer : A) oxytocin
Description : Protein anabolism is stimulated by (A) ACTH (B) Testosterone (C) Glucagon (D) Epinephrine
Description : Reactivation of inactive liver phosphorylase is normally favoured by (A) Insulin (B) Epinephrine (C) ACTH (D) Glucagon
Last Answer : D
Description : Menstrual flow occurs due to lack of (a) oxytocin (b) vasopressin (c) progesterone (d) FSH.
Last Answer : (c) progesterone
Description : Which of the following hormones is not involved in carbohydrate metabolism? (A) ACTH (B) Glucagon (C) Vasopressin (D) Growth hormone
Description : Which of the following hormone is not under the control of ACTH? (A) Aldosterone (B) Cortisol (C) Corticosterone (D) Deoxycorticosterone
Description : Which one of the following is not liberated by the adenohypophysis? (A) Growth hormone (B) TSH (C) ACTH (D) Gonadotropin
Last Answer : Answer : D
Description : Acromegaly results from overproduction of (A) ACTH during childhood (B) TSH during adult life (C) Growth hormone during childhood (D) Growth hormone during adult life HORMONE METABOLISM 219
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
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
Description : A nonapeptide among the following is (A) Antidiuretic hormone (B) Insulin (C) ACTH (D) Thyrotropin releasing hormone
Description : Adrenocorticotropic hormone (ACTH) is a single polypeptide containing (A) 25 amino acid (B) 39 amino acid (C) 49 amino acid (D) 52 amino acid 208 MCQs IN BIOCHEMISTRY
Description : Placenta secretes all of the following except (A) FSH (B) Progesterone (C) Estrogen (D) Chorionic gonadotropin HORMONE METABOLISM 225
Description : Secretion of luteinising hormone is increased by (A) GnRH (B) FSH (C) Testosterone (D) None of these
Description : In males, secretion of luteinising hormone is inhibited by (A) Gonadotropin releasing hormone (B) FSH (C) High blood level of testosterone (D) Inhibin
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
Description : Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199
Description : Which of the following hormone increases the absorption of glucose from G.I.T? (A) Insulin (B) Throid hormones (C) Glucagon (D) FSH
Description : Which of the following hormones are synthesized as prehormones (A) Vasopressin and oxytocin (B) Growth hormone and insulin (C) Insulin and parathyroid hormone (D) Insulin and Glucagon
Description : Whcih of the following hormone is a peptide of less than ten amino acids? (A) Insulin (B) Growth hormone (C) Oxytocin (D) Parathyroid hormone 228 MCQs IN BIOCHEMISTRY
Description : A hormone used for detection of pregnancy is (A) Estrogen (B) Progesterone (C) Oxytocin (D) Chorionic gonadotropin
Description : Peripheral vasoconstriction is caused by high concentrations of (A) Antidiuretic hormone (B) Melatonin (C) Glucagon (D) Oxytocin
Description : Posterior pituitary gland secretes (A) Catecholamines (B) Oxytocin (C) Follicle stimulating hormone (D) Serotonin
Description : Young women are protected against myocardial infaracation because of the activity of (A) Estrogen (B) Progesterone (C) Growth hormone (D) Oxytocin
Description : The number of amino acids in the hormone oxytocin is (A) 7 (B) 9 (C) 14 (D) 18
Description : The hormone required for uterine muscle contraction for child birth is (A) Progesterone (B) Estrogen (C) Oxytocin (D) Vasopressin
Description : This hormone has disulphide group: (A) Glucagon (B) Insulin (C) T4 (D) Epinephrine
Description : Whcih of the following hormone does not activate adenylate cyclase? (A) Epinephrine (B) Glucagon (C) Parathyroid hormone (D) Insulin
Description : HMG-CoA reductase activity is increased by administration of the hormone: (A) Insulin (B) Glucagon (C) Epinephrine (D) Glucocorticoids
Description : The output of free fatty acids from adipose tissue is reduced by (A) Insulin (B) Glucagon (C) Growth hormone (D) Epinephrine
Description : Release of free fatty acids from adipose tissue is increased by all of the following except (A) Glucagon (B) Epinephrine (C) Growth hormone (D) Insulin
Description : Cyclic AMP is formed from ATP by the enzyme adenylate cyclase which is activated by the hormone: (A) Insulin (B) Epinephrine (C) Testosterone (D) Progesterone
Last Answer : B
Description : Potassium metabolism is regulated by the hormone: (A) Aldosterone (B) PTH (C) Somatostatin (D) Estrogen
Description : The metabolism of sodium is regulated by the hormone: (A) Insulin (B) Aldosterone (C) PTH (D) Somatostatin
Description : Secretion of prolactin is regulated by (A) Feedback inhibition (B) Prolactin releasing hormone (C) Prolactin release inhibiting hormone (D) All of these