Description : In brain, the major metabolism for removal of ammonia is the formation of (A) Glutamate (B) Aspartate (C) Asparagine (D) Glutamine
Last Answer : Answer : D
Description : The 2 nitrogen atoms in urea are contributed by (A) Ammonia and glutamate (B) Glutamine and glutamate (C) Ammonia and aspartate (D) Ammonia and alanine
Last Answer : Answer : C
Description : For synthesis of CTP and UTP, the amino group comes from (A) Amide group of Asparagine (B) Amide group of glutamine (C) α-Amino group of glutamine (D) α-Amino group of glutamate
Last Answer : Answer : B
Description : In N-linked glycoproteins, oligosaccharide is attached to protein through its (A) Asparagine residue (B) Glutamine residue (C) Arginine residue (D) Lysine residue
Last Answer : Answer : A
Description : The major source of NH3 produced by the kidney is (A) Leucine (B) Glycine (C) Alanine (D) Glutamine
Description : In purine biosynthesis carbon atoms at 4 and 5 position and N at 7 position are contributed by (A) Glycine (B) Glutamine (C) Alanine (D) Threonine
Description : The amino acid which has a pK near 4 and thus is negatively charged at pH 7 is (A) Alanine (B) Glutamic acid (C) Glutamine (D) Aspargine
Description : All the standard amino acids except the following have one chiral ‘c’ atom: (A) Threonine, Isoleucine (B) Isoleucine, Alanine (C) Threonine, Alanine (D) Alanine, Glutamine
Description : The amino acid which is not optically active is (A) Alanine (B) Glycine (C) Glutamine (D) Lysine
Description : The amino acid that undergoes oxidative deamination at significant rate is (A) Alanine (B) Aspartate (C) Glutamate (D) Glutamine
Description : Which of the following is the simplest amino acid? (a) Alanine (b) Asparagine (c) Glycine (d) Tyrosine
Last Answer : (c) Glycine
Description : Esterification of cholesterol occurs mainly in (A) Adipose tissue (B) Liver (C) Muscles (D) Kidneys
Description : α-Oxidation of fatty acids occurs mainly in (A) Liver (B) Brain (C) Muscles (D) Adipose tissue
Description : Lipid stores are mainly present in (A) Liver (B) Brain (C) Muscles (D) Adipose tissue
Description : The two nitrogen of the pyrimidine ring are contributed by (A) Ammonia and glycine (B) Asparate and carbamoyl phosphate (C) Glutamine and ammonia (D) Aspartate and ammonia
Description : All of the following are required for synthesis of glutamine except (A) Glutamate (B) Ammonia (C) Pyridoxal phosphate (D) ATP
Description : In contrast to a patient undergoing an elective operation, which of the following statement(s) is/are true concerning a patient who has suffered a multiple trauma? a. Basal metabolic rates are ... is similar to their composition in skeletal muscle d. Fat and protein stores are rapidly depleted
Last Answer : Answer: b, d The degree of hypermetabolism is generally related to the severity of injury. Patients with long-bone fractures have a 15-25% increase in metabolic rate, whereas metabolic ... in injured subjects, if unfed, severely injured patients rapidly deplete their fat and protein stores
Description : Skeletal muscle breakdown produces predominantly liberation of which two amino acids? A. Lysine. B. Tyrosine. C. Alanine. D. Glutamine. E. Arginine.
Last Answer : Answer: CD DISCUSSION: Alanine is released from skeletal muscle and extracted by the liver, where it is converted to new glucose. Glutamine is also released from muscle and participates in ... these two amino acids account for approximately two thirds of the nitrogen released from skeletal muscle
Description : Lactate formed in muscles can be utilised through (A) Rapoport-Luebeling cycle (B) Glucose-alanine cycle (C) Cori’s cycle (D) Citric acid cycle
Last Answer : C
Description : Buffering action of haemoglobin is mainly due to its (A) Glutamine residues (B) Arginine residues (C) Histidine residues (D) Lysine residues
Description : NH3 is removed from brain mainly by (A) Creatinine formation (B) Uric acid production (C) Urea formation (D) Glutamine formation
Description : Removal of BSP dye by the liver involves conjugation with (A) Thiosulphate (B) Glutamine (C) Cystein component of glutathione (D) UDP glucuronate
Description : Glucose-1-phosphate liberated from glycogen cannot be converted into free glucose in (A) Liver (B) Kidneys (C) Muscles (D) Brain
Description : Cholesterol is transported from liver to extrahepatic tissues by (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Description : Triglycerides are transported from liver to extrahepatic tissues by (A) Chylomicrons (B) VLDL (C) HDL (D) LDL
Description : Why lactate is transported from muscle to liver?
Last Answer : Oxygen is limited in muscle, so lactic acid could not be made to pyruvate in muscle. So, it is transported to liver, where it is made to pyruvate and then to glucose.
Description : An amino acid that does not form an αhelix is (A) Asparagine (B) Tyrosine (C) Tryptophan (D) Proline
Description : In the A chain of insulin molecule the Cterminal amino acid is (A) Asparagine (B) Threonine (C) Valine (D) Tyrosine
Description : An essential amino acid in man is (A) Proline (B) Threonine (C) Asparagine (D) Tyrosine
Description : All of the following statements about aspartate are true except (A) It is non-essential amino acid (B) It is a dicarboxylic amino acid (C) It can be synthesized from pyruvate and glutamate (D) It can be converted into asparagine
Description : The amino acid with a nonpolar side chain is (A) Serine (B) Valine (C) Asparagine (D) Threonine
Description : Sulphur containing amino acid is (A) Methionine (B) Leucine (C) Valine (D) Asparagine
Last Answer : (A) Methionine
Description : Potassium is kept & transported under (A) Water (B) Liquid ammonia (C) Kerosene oil (D) Alcohol
Last Answer : (C) Kerosene oil
Description : The maineffecting of glucagons is to increase (A) Glycolysis in muscles (B) Glycogenolysis in muscles (C) Glycogenolysis in liver (D) Glycogenesis in liver
Description : In the normal resting state of human most of the blood glucose burnt as fuel is consumed by (A) Liver (B) Brain (C) Adipose tissue (D) Muscles
Description : Gluconeogenesis does not occur in (A) Brain (B) Kidneys (C) Muscles (D) Liver
Description : Rapoport-Luebering cycle is located in (A) Liver (B) Muscles (C) Brain (D) Erythrocytes
Description : Glucokinase is found in (A) Muscles (B) Brain (C) Liver (D) All of these
Description : Creatine kinase is present in all of the following except (A) Liver (B) Myocardium (C) Muscles (D) Brain
Description : Ketone bodies are synthesized from fatty acid oxidation products by which of the following organs? (A) Liver (B) Skeletal muscles (C) Kidney (D) Brain
Description : Ketone bodies are synthesized in (A) Adipose tissue (B) Liver (C) Muscles (D) Brain
Description : The major site of urea synthesis is (A) Brain (B) Kidneys (C) Liver (D) Muscles
Description : Cori’s cycle transfers (A) Glucose from muscles to liver (B) Lactate from muscles to liver (C) Lactate from liver to muscles (D) Pyruvate from liver to muscles
Last Answer : B
Description : Glucose-6-phosphatase is not present in (A) Liver and kidneys (B) Kidneys and muscles (C) Kidneys and adipose tissue (D) Muscles and adipose tissue
Last Answer : D
Description : Deficiency of urea cycle enzymes results into accumulation of citrulline argininosuccinate arginine in the liver resulting in increasing concentration of …….. in the blood. (A) Calcium (B) Sodium (C) Ammonia (D) Lipid
Description : The unwanted amino acids abstracted from the tissues are either used up by the tissue or in the liver converted into (A) Ammonia (B) Urea (C) Ammonium salts (D) Uric acid
Description : The amino acids abstracted from the liver are not utilized for repair or special synthesis but are broken down to (A) Keto acids (B) Sulphur dioxide (C) Water (D) Ammonia
Description : An organ which is extremely sensitive to ammonia toxicity is (A) Liver (B) Brain (C) Kidney (D) Heart
Description : A well oxidized sewage contains nitrogen mainly as A. Nitrates B. Nitrites C. Free ammonia D. None of these
Last Answer : ANS: A