Description : Which of the followings gives a positive test for Ninhydrin? (A) Reducing sugars (B) Triglycerides (C) Alpha aminoacids (D) Esterified Fats
Last Answer : Answer : C
Description : Glucose and fructose are reducing sugars, but sucrose (containing glucose and fructose) is a non-reducing sugar, why?
Last Answer : Because the glycosidic linkage in sucrose involves 1st carbon of glucose and 2nd carbon of fructose, so both reducing groups are masked.
Description : Name a few reducing sugars.
Last Answer : Glucose, fructose, mannose.
Description : Reducing type sugars are
Last Answer : Ans. Maltose and Cellobiose
Description : What are the reducing substances seen in urine?
Last Answer : Glucose, fructose, lactose, galactose, pentoses, ascorbic acid, glucuronides.
Description : Which of the following gives a positive Ninhydrin test? (A) Reducing sugar (B) Triglycerides (C) α-amino acids (D) Phospholipids
Description : Which of the following statements is correct? (A) a nucleo protein usually contain deoxy sugars of the hexose type (B) Nucleoproteins are usually absent from the cytoplasm (C) Nucleoproteins usually are present in the nucleus only (D) Nucleoproteins usually occur in the nucleus and cytoplasm
Last Answer : Answer : D
Description : Intestinal nucleosidases act on nucleosides and produce (A) Purine base only (B) Phosphate only (C) Sugar only (D) Purine or pyrimidine bases and sugars
Description : Protein is a polymer of (A) Sugars (B) Phenols (C) Amino acids (D) Carboxylic acids
Description : Two important byproducts of HMP shunt are (A) NADH and pentose sugars (B) NADPH and pentose sugars (C) Pentose sugars and 4 membered sugars (D) Pentose sugars and sedoheptulose
Last Answer : B
Description : Two sugars which differ from one another only in configuration around a single carbon atom are termed (A) Epimers (B) Anomers (C) Optical isomers (D) Stereoisomers
Last Answer : A
Description : The rate of absorption of sugars in intestine is highest for which monosaccharide?
Last Answer : Absorption rate of galactose is more than glucose, while fructose is absorbed at a lesser rate than glucose.
Description : Name some deoxy sugars.
Last Answer : Deoxy ribose, fucose (deoxy galactose).
Description : In the case of sugars, which of the properties go hand in hand?
Last Answer : Reducing property, osazone formation and mutarotation.
Description : How alpha and beta forms of sugars are produced?
Last Answer : These are anomers. The difference lies in the spatial configuration with reference to the first carbon atom in aldoses and second carbon atom in ketoses.
Description : What is the difference between D and L sugars?
Last Answer : They are mirror images with reference to penultimate carbon atom.
Description : Which is the reference carbon atom in sugars?
Last Answer : Penultimate carbon atom.
Last Answer : (A) Epimers
Description : The hormone measured in urine to test pregnancy is (A) Anterior pituitary luteinizing hormone (B) Androgen (C) Progesterone (D) Choroinic gonadotropin
Description : Urea clearance test is used to determine the (A) Glomerular filtration rate (B) Renal plasma flow (C) Ability of kidney to concentrate the urine (D) Measurement of tubular mass
Last Answer : Answer : A
Description : Benedict’s test is less likely to give weakly positive results with concentrated urine due to the action of (A) Urea (B) Uric acid (C) Ammonium salts (D) Phosphates
Description : ADH test is based on the measurement of (A) Specific gravity of urine (B) Concentration of urea in urine (C) Concentration of urea in blood (D) Volume of urine in ml/minute
Description : Which of the following techniques would be most useful in the differential diagnosis between ectopic Cushing's syndrome and pituitary dependent Cushing's disease. 1) Urine free cortisol 2) ... Dexamethasone suppression test 3) ACTH concentrations 4) Inferior petrosal sinus sampling 5) CRF test
Last Answer : Answers-4 Inferior petrosal sinus sampling with an elevated central ACTH concentration compared with the peripheral value is the most valuable test in the differential diagnosis of either Cushing's disease or ectopic Cushing's syndrome. The other tests are far less useful in comparison.
Description : What test is used to identify ketone bodies in urine?
Last Answer : Rotheraís test.
Description : Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a (A) Furnace employing neutral atmosphere (B) Carbon resistance furnace (C) Reducing atmosphere (D) Furnace employing negative pressure
Last Answer : (B) Carbon resistance furnace
Description : A reducing sugar will (a) react with Fehling's test (b) not react with Fehling's test (c) have fewer calories (d) always be a ketone
Last Answer : react with Fehling's test
Description : A deficiency of copper effects the formation of normal collagen by reducing the activity of which of the following enzyme? (A) Prolyl hydroxylase (B) Lysyl oxidase (C) Lysyl hydroxylase (D) Glucosyl transferase
Last Answer : Answer : B
Description : Transfer of reducing equivalents from succinate dehydrogenase to coenzyme Q is specifically inhibited by (A) Carboxin (B) Oligomycin (C) Piericidin A (D) Rotenone
Description : If the reducing equivalents enter from NAD in the respiratory chain, the phsphate/oxygen (P:O) is (A) 1 (B) 2 (C) 3 (D) 4 MINERAL METABOLISM 183
Description : If the reducing equivalents enter from FAD in the respiratory chain, the phosphate.oxygen ration (P:O) is (A) 2 (B) 1 (C) 3 (D) 4
Description : Reducing equivalents from succinate enter the mitochondrial respiratory chain at (A) NAD (B) Coenzyme Q (C) FAD (D) Cyt c
Description : Reducing equivalents from pyruvate enter the mitochondrial respiratory chain at (A) FMN (B) NAD (C) Coenzyme Q (D) Cyt b
Description : The main source of reducing equivalents (NADPH) for lipogenesis is (A) Pentose phosphate pathway (B) Citric acid cycle (C) Glycolysis (D) Glycogenolysis
Description : The most important source of reducing equivalents for FA synthesis on the liver is (A) Glycolysis (B) HMP-Shunt (C) TCA cycle (D) Uronic acid pathway
Description : Proteins produce polypeptides from proteins by (A) Oxidizing (B) Reducing (C) Hydrolyzing (D) None of these
Description : A tripeptide functioning as an important reducing agent in the tissues is (A) Bradykinin (B) Kallidin (C) Tyrocidin (D) Glutathione
Description : Reducing ability of carbohydrates is due to (A) Carboxyl group (B) Hydroxyl group (C) Enediol formation (D) Ring structure
Description : Which of the following is not reducing sugar? (A) Lactose (B) Maltose (C) Sucrose (D) Fructose
Last Answer : C
Description : Which of the following is a reducing sugar? (A) Sucrose (B) Trehalose (C) Isomaltose (D) Agar
Description : Which of the following is a non-reducing sugar? (A) Isomaltose (B) Maltose (C) Lactose (D) Trehalose
Last Answer : D
Description : Alkaline metals when dissolved in ammonium (NH3) act as better conductor and better reducing agent what is the reason behind it ?
Last Answer : Due to formation of solvated or Ammoniated electrons
Description : Name reducing disaccharides.
Last Answer : Lactose and maltose.
Description : Keto group is non-reducing, but fructose reduces Benedictís solution, what is the cause for this anomaly?
Last Answer : In alkaline medium, ketone group is converted to aldehyde, through enediol formation.
Description : Does complex thought ever feel like you are wasting vaulable brain sugars?
Last Answer : LOL! No! I like it. Wait, I read the rest of the details…if I’m doing a complex task that I don’t enjoy I get cranky.
Description : If consumers rebel against high fructose corn syrup, what do you think will be the economic results for corn farming? Are beet and cane sugars more or less expensive to raise than corn? Which crop is the least caustic to the soil?
Last Answer : I don't know any of the details but My understanding is that U.S. government subsidizes the corn industry so much that it's not economically feasible for sugar cane manufacturers to compete as a food ... . Hence why you can buy Coca-Cola made in Mexico that uses real cane sugar instead of HFCS.
Description : What are some starches without refined sugars?
Last Answer : I’m not following what you are asking. Isn’t stach a sugar derivative? Gotta go read wiki brb.
Description : carbohydrates are nutrients that supply the main energy source for the body, in the form of sugars. -General Knowledge
Last Answer : The given statement is true.
Description : Enzymes involved in the breakdown of nucleotides into sugars and bases? -Biology
Last Answer : answer:
Description : why plants tend to store sugars in form of starch in the stroma? -Biology