Description : Androgens are synthesised in (A) Leydig cells in testes (B) Sertoli cells in testes (C) Seminiferous tubules (D) Prostate gland
Last Answer : Answer : A
Description : All the following statements about transcortin are true except (A) It is synthesised in liver (B) It transports glucocorticoids (C) It transports aldosterone (D) It transports progesterone
Last Answer : Answer : C
Description : Steroid hormones are synthesised from (A) Cholesterol (B) 7-Dehydrocholesterol (C) Calcitriol (D) 7-Hydroxycholesterol
Description : Steroid hormones are synthesised in all of the following except (A) Testes (B) Ovaries (C) Adrenal medulla (D) Adrenal cortex
Description : Epinephrine is synthesised in (A) Chromaffin cells of adrenal medulla (B) Sympathetic ganglia (C) Brain (D) All of these
Last Answer : Answer : D
Description : Dopamine is synthesised from (A) Dihydroxyphenylalanine (B) Epinephrine (C) Norepinephrine (D) Metanephrine
Description : Parathyroid hormone (PTH) is synthesised in (A) Chief cells of parathyroid glands (B) Oxyphil cells of parathyroid glands (C) Para follicular cells of thyroid glands (D) Follicular cells of thyroid gland
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
Description : A hormone synthesised in the hypothalamus is (A) Melatonin (B) Melanocyte stimulating hormone (C) Vasopressin (D) Prolactin
Description : Melatonin is synthesised from (A) Phenylalanine (B) Tyrosine (C) Tryptophan (D) None of these
Description : Melatonin is synthesised in (A) Hypothalamus (B) Posterior pituitary gland (C) Pineal gland (D) Melanocytes
Description : All the following statements about ceruloplasmin are correct except (A) It is a copper-containing protein (B) It possesses oxidase activity (C) It is synthesised in intestinal mucosa (D) Its plasma level is decreased inWilson’s disease
Description : Niacin can be synthesised in human beings from (A) Histidine (B) Phenylalanine (C) Tyrosine (D) Tryptophan
Description : Prothrombin is synthesised in (A) Erythrocytes (B) Reticulo-endothelial cells (C) Liver (D) Kidneys
Description : All of the following statements about Tangier disease are true except (A) It is a disorder of HDL metabolism (B) Its inheritance is autosomal recessive (C) Apoproteins A-I and A-II are not synthesised (D) Plasma HDL is increased
Description : All the following statements about carnitine are true except (A) It can be synthesised in the human body (B) It can be synthesized from methionine and lysine (C) It is required for transport of short chain fatty acids into mitochondria (D) Its deficiency can occur due to haemodialysis
Description : In I-cell disease, lysosomal enzymes (A) Are not synthesised (B) Are inactive (C) Lack signal sequence (D) Cannot reach lysosomes
Last Answer : Answer : B
Description : Serotonin is synthesised from (A) Serine (B) Phenylalanine (C) Tyrosine (D) Tryptophan
Description : Histamine is synthesised in (A) Brain (B) Mast cells (C) Basophils (D) All of these
Description : Calcitonin is synthesised in (A) Parathyroid glands (B) Thyroid gland (C) Pars intermedia of pituitary (D) Adrenal cortex
Description : Apolipoprotein B-100 is synthesised in (A) Adipose tissue (B) Liver (C) Intestine (D) Liver and intestine
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.
Description : How N-acetyl neuraminic acid (sialic acid) is synthesised?
Last Answer : N-acetyl mannosamine-6-phosphate + phospho enol pyruvate.
Description : Where is insulin synthesised?
Last Answer : Beta cells of langerhans of pancreas.
Description : Which amino acid is synthesised after it gets in- corporated into the protein?
Last Answer : Hydroxyproline
Description : The activity of kinins is modulated by (A) Prostaglandins (B) Ca++ (C) Increased cAMP level (D) Increased cGMP level
Description : Which one of the following hormones is derived most completely from tyrosine? (A) Glucagon (B) Thyroxine (C) Insulin (D) Prostaglandins
Description : A cup of strong coffee would be expected to (A) Interfere with synthesis of prostaglandins (B) Decrease the effects of Glucagon (C) Enhance the effects of epinephrine (D) Provide the vitamin nicotinic acid
Description : Which of the following is used for inducing labour? (A) Prostaglandins (B) Prostacyclins (C) Vasopressin (D) Thromboxanes
Description : The suffix number in the names of prostaglandins gives the number of (A) OH groups (B) Double bonds (C) Acid groups (D) Ketoacids
Description : Which of tne of the following scientists has not worked in the field of prostaglandins? (A) Voneuler (B) Sultan Karim (C) Andre robet (D) Kendal
Description : Prostaglandins are (A) C2 unsaturated acids (B) C27 saturated alcohols (C) C20 saturated acids (D) C27 saturated alcohols
Description : Which of the following property of prostaglandins has been utilized by chinicians in hospital for (A) Inducing fever (B) Causing inflammation (C) Effecting smooth muscle contraction (D) Disaggregation of spermatozoa
Description : Richest source of prostaglandins in a human male is (A) Blood (B) Urine (C) Semen (D) C.S.F.
Description : Aspirin blocks the synthesis of (A) Prostaglandins only (B) Prostacyclins only (C) Thromboxanes only (D) All of these
Description : A cup of strong coffee would be expected to (A) Interfere with the synthesis of prostaglandins (B) Decrease the effect of glucagon (C) Enhance the effect of epinephrine (D) Provide the vitamin nicotinic acid
Description : From arachidonate, synthesis of prostaglandins is catalysed by (A) Cyclooxygenase (B) Lipoxygenase (C) Thromboxane synthase (D) Isomerase
Description : Cholesterol is the precursor for the biosynthesis of (A) fatty acid (B) prostaglandins (C) bile acids (D) sphingmyelin
Description : Acrolein Test is positive for (A) Glycerol (B) Prostaglandins (C) Carbohydrates (D) Proteins
Description : All the following are functions of prostaglandins except (A) Lowering of B.P (B) Introduction of labour (C) Anti inflammatory (D) Prevention of myocardial infraction
Description : Prostaglandins are synthesized in the body from (A) Myristic acid (B) Arachidonic acid (C) Stearic acid (D) Lignoceric acid
Description : All active prostaglandins have atleast one double bond between positions: (A) 7 and 8 (B) 9 and 10 (C) 11 and 12 (D) 13 and 14 FATS AND FATTY ACID METABOLISM 95
Description : Prostaglandins have a common structure based on prostanoic acid which contains carbon atoms: (A) 12 (B) 16 (C) 18 (D) 20
Description : Prostaglandins are liberated in the circulation by the stimulation of (A) Anterior pituitary glands (B) Posterior pituitary glands (C) Adrenal gland (D) Thyroid gland
Description : The prostaglandins are synthesized from (A) Arachidonic acid (B) Oleic acid (C) Linoleic acid (D) Linolenic acid
Description : Prostaglandins decrease all of the following except (A) Gastric acid secretion (B) Blood pressure (C) Uterine contraction (D) Platelet aggregation
Description : Cyclo-oxygenase is involved in the synthesis of (A) Prostaglandins (B) Thromboxanes (C) Both (A) and (B) (D) None of these
Description : Prostaglandins stimulate (A) Aggregation of platelets (B) Lipolysis in adipose tissue (C) Bronchodilatation (D) Gastric acid secretion
Description : Prostaglandins are inactivated by (A) 15-Hydroxyprostaglandin dehydrogenase (B) Cyclo-oxygenase (C) Lipo-oxygenase (D) None of these
Description : Lipo-oxygenase is required for the synthesis of (A) Prostaglandins (B) Leukotrienes (C) Thromboxanes (D) All of these