Description : Niacin is synthesized in the body from (A) Tryptophan (B) Tyrosine (C) Glutamate (D) Aspartate
Last Answer : Answer : A
Description : The most of the ultraviolet absorption of proteins above 240 nm is due to their content of (A) Tryptophan (B) Aspartate (C) Glutamate (D) Alanine
Description : The four nitrogen atoms of purines are derived from (A) Urea and NH3 (B) NH3, Glycine and Glutamate (C) NH3, Asparate and Glutamate (D) Aspartate, Glutamine and Glycine
Last Answer : Answer : D
Description : The carbon atom at position 2 of pyrimidine nucleus is contributed by (A) CO2 (B) Glycine (C) Aspartate (D) Glutamine
Description : Nitrogen at position 3 of pyrimidine nucleus comes from (A) Glutamine (B) Glutamate (C) Glycine (D) Aspartate
Description : Nitrogen at position 1 of pyrimidine nucleus comes from (A) Glutamine (B) Glutamate (C) Glycine (D) Aspartate
Description : The carbon atoms of pyrimidine nucleus are provided by (A) Glycine and aspartate (B) CO2 and aspartate (C) CO2 and glutamate (D) CO2 and glutamine
Last Answer : Answer : B
Description : In the purine nucleus, carbon 6 is contributed by (A) Glycine (B) CO2 (C) Aspartate (D) Glutamine
Description : The nitrogen atoms for de novo synthesis of purine nucleotides are provided by (A) Aspartate and glutamate (B) Aspartate and glycine (C) Aspartate, glutamine and glycine (D) Aspartate, glutamate and glycine
Last Answer : Answer : C
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 : In purine nucleus nitrogen atom at 1 position is derived from (A) Aspartate (B) Glutamate (C) Glycine (D) Alanine
Description : Carnitine is synthesized from (A) Lysine and methionine (B) Glycine and arginine (C) Aspartate and glutamate (D) Proline and hydroxyproline
Description : Along with CO2, NH3 and ATP, the amino acid that is needed in urea cycle is (A) Alanine (B) Isoleucine (C) Aspartate (D) Glycine
Description : The major constituent of the proteins of hair and keratin of skin: (A) Arginine (B) Cysteine (C) Glycine (D) Arginine
Description : Pyridoxine deficiency can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of (A) Glycine (B) Histidine (C) Tryptophan (D) Pyridoxine
Description : All amino acids are optically active except (A) Glycine (B) Serine (C) Threonine (D) Tryptophan
Description : Branched chain amino acids are (A) Cysteine and cystine (B) Tyrosine and Tryptophan (C) Glycine and Serine (D) Valine, Leucine and Isoleucine
Description : The amino acid which contains an indole group is (A) Histidine (B) Arginine (C) Glycine (D) Tryptophan
Description : Which among the following is a nutritionally essential amino acid for man ? (A) Alanine (B) Glycine (C) Tyrosine (D) Tryptophan
Description : In mammalian tissues serine can be a biosynthetic precursor of (A) Methionine (B) Glycine (C) Tryptophan (D) Phenylalanine
Last Answer : (A) Tryptophan
Description : Cell membranes a. consist almost entirely of protein molecules b. are impermeable to fat-soluble substances c. in some tissues permit the transport of glucose at a greater rate in the presence of ... to electrolytes but not to proteins e. have a stable composition throughout the life of the cell
Last Answer : in some tissues permit the transport of glucose at a greater rate in the presence of insulin
Description : Hormones thyroxine, adrenaline and the pigment melanin are formed from (a) tyrosine (b) proline (c) tryptophan (d) glycine.
Last Answer : (a) tyrosine
Description : The protein present in hair is (A) Elastin (B) Prolamine (C) Keratin (D) Gliadin
Description : Which of the following protein is rich in cysteine? (A) Elastine (B) Collagen (C) Fibrin (D) Keratin
Description : A protein rich in cysteine is (A) Collagen (B) Keratin (C) Haemoglobin (D) Gelatin
Description : The amino acid from which synthesis of the protein of hair keratin takes place is (A) Alanine (B) Methionine (C) Proline (D) Hydroxyproline
Description : The protein present in hair is (A) Keratin (B) Elastin (C) Myosin (D) Tropocollagen
Description : Carbamoyl phosphate synthetase structure is marked by change in the presence of (A) N-Acetyl glutamate (B) N-Acetyl Aspartate (C) Neuraminic acid (D) Oxalate
Description : What is fibroin? -Biology
Last Answer : answer:
Description : A 19 year-old female is referred following a visit to the dentist where marked erosion of her teeth was noted. She was entirely asymptomatic and her only medication was the oral contraceptive pill ... ) Bulimia nervosa 2) Conn's syndrome 3) Laxative abuse 4) Pregnancy 5) Primary hypoparathyroidism
Last Answer : Answers-5 This patient has tooth erosion associated with hypokalaemic metabolic alkalosis and hypocalcaemia. This suggests a diagnosis of hypoparathyroidism. Conn's is unlikely in this age group, is ... raised alkaline phosphatase would not be expected. Early pregnancy would not fit this picture.
Description : A synthetic RNA having the sequence of UUUUUU (Poly U) will give a protein having poly ______. (A) Alamine (B) Phenyl alanine (C) Glycine (D) Methionine
Description : With the exception of glycine all amino acids found in protein are (A) Isocitrate dehydrogenase (B) Fumarase (C) Succinate thiokinase (D) ATPase
Description : The major end product of protein nitrogen metabolism in man is (A) Glycine (B) Uric acid (C) Urea (D) NH3
Description : What are some jobs or professions that have disappeared or almost entirely disappeared since the 1980s/1990s?
Last Answer : Key punch operator.
Description : the sun and most stars are made almost entirely of -General Knowledge
Last Answer : The Sun and most stars are made almost entirely of Helium and Hydrogen.
Description : Among the four fundamental forces, only one force governs your daily life almost entirely. Justify the statement by stating that force.
Last Answer : Among the four fundamental forces, only one force governs your daily life almost entirely. Justify the statement by stating that force.
Description : A patient has been taking digoxin for several years for chronic heart failure is about to receive atropine for another condition. A common effect of digoxin (at therapeutic blood levels) that can ... Increased atrial contractility (c) Increased PR interval on the ECG (d) Headaches (e) Tachycardia
Last Answer : Ans: C
Description : Name the process by which silk and wool fibres are made into fabric. -Science-7
Last Answer : Wool and Silk are made into fabric by the process of weaving.
Description : Which of the following fibres is considered as the stron est natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk
Last Answer : (4) Silk Explanation: Ultrastrong spider silk is one of the toughest natural fibers known in nature. The light, flexible fiber is five times stronger by weight than high-grade steel and extremely stretchy, enlarging to snag incoming insects and other prey.
Description : Retting is used in the processing of which of the following fibres: a. Cotton b. Linen c. Silk d. Viscose rayon
Last Answer : b. Linen
Description : Which of the following fibres is considered as the strongest natural fibre? (1) Cotton (2) Jute (3) Wool (4) Silk
Last Answer : Silk
Description : At which stage in its life cycle, does the silk worm yield the fibre of commerce? (1) Egg (2) Larva (3) Pupa (4) Imago
Last Answer : (3) Pupa Explanation: The eggs hatch into worms in a few weeks, and then the cycle repeats itself. Silkworms go through four stages of developmen
Description : At which stage does the silk worm yield the fibre of commerce?
Last Answer : Pupa
Description : Alpha-keratin is a protein present in which thing? -General Knowledge
Last Answer : The answer is 'Wool '
Description : Which of the following is a fibrous protein? (1) Haemoglobin (2) Albumin (3) Keratin (4) Enzymes
Last Answer : (3) Keratin Explanation: Keratin is a family of fibrous structural proteins. It is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Another example of fibrous protein is collagen.
Description : The protein present in the finger nail is (1) Actin (2) Myosin (3) Globin (4) Keratin
Last Answer : (4) Keratin Explanation: Keratin is a fibrous protein making up most cells found in our nails and hair and the epidermis layer of our skin. It also makes up fish scales and crustacean shells, bird feathers and beaks, and animal horns and hooves.
Description : An example of protein which acts as a hormone is : (1) nypsin (2) Oxytocin (3) Keratin (4) Casein
Last Answer : (2) Oxytocin Explanation: Hormonal Proteins are messenger proteins which help to coordinate certain bodily activities. Examples include Insulin, Oxytocin, and Somatotropin. Oxytocin stimulates contractions in females during childbirth.