True Or False On Carbohydrates

CO2 formed in HMP shunt is utilized for the synthesis of fatty acids and purine bases, etc.

The amino sugars are formed by the replacement of the hydroxyl group attached to carbon atom 3 of the sugar by an amino group.

Under anaerobic conditions, one molecule of glucose produces 8 ATP.

In amylopectin, each branch is at an interval of 24-30 glucose units.

Pyruvate is converted to oxaloacetate by pyruvate decarboxylase.

The glucogenic amino acids are converted to the intermediates of TCA cycle.

Glucose-6-phosphate is not an important compound in the metabolic pathway.

In essential pentosuria, large quantities of L-xylulose appear in the urine.

Acetyl-CoA is permeable to pass through the mitochondrial membrane.

Inulin produces colour with iodine.

When the OH group around the carbon atom adjacent to the terminal primary alcohol carbon is on the right, the sugar is a member of L-series.

Starch is a fructosan.

Citrate synthetase forms citrate in the presence of the coenzyme CoA.

The enzymes of the TCA cycle are located at the cytosol.

Fructose is actively transported.

Succinate dehydrogenase takes the help of the coenzyme NAD+.

Dihydroxyacetone phosphate is also converted to glucose in the liver.

Fluoride inhibits pyruvate dehydrogenase.

Conversion of phosphorylase b to phosphorylase a signifies the mechanism for increasing glycogenolysis.

Aldolase requires a coenzyme for its activity.

Gluconic acid on heating produces lactones.

Mannosamine is an important constituent of mucoprotein.

Sucrose is also said to be “invert sugar”.

Disacchariduria results in the absence of disaccharidase.

Each glycogen molecule contains 5000 to 10000 glucose molecules.

PGE5 at low concentration stimulates cGMP accumulation.

The absorption of glucose is retarded in hypothyroidism.

One molecule of acetyl-CoA in TCA cycle for complete oxidation forms 12 ATP.

Ribose and Deoxyribose are important constituents of many coenzymes.

Glucuronic acid is not involved in detoxication reactions.

S-acetyl lipoate reacts with coenzyme A in presence of dihydrolipoyl transacetylase.

In the maltose molecule, there is one 0-1, 2 glucosidic linkages.

Hyaluronic acid does not occur in the skin.

Chondroitin sulphates have a marked capacity to hold water.

The osazone is formed by phenylhydrazine only.

The aglycone may be -COOH containing substances.

Disaccharides are absorbed and used in the body.

Oxaloacetate inhibits succinate dehydrogenase.

Cyclic AMP depresses phosphorylase activity.

Glycolysis in erythrocytes even under aerobic condition forms lactate.

The citric acid cycle is amphibolic in nature.

Thyroid hormones may decrease the synthesis of adenylate cyclase.

The reduced NADP produced in HMP shunt is required for ketone bodies formation.

Glucose on reduction yields mannitol.

The glycolytic activity is low when there is active gluconeogenesis.

The separation of optically active isomers from a racemic mixture is called resolution.

Galactose and fucose are also present in blood group substances.

Isomers formed as a result of interchange of the -OH and -H on carbon atoms 2, 3 and 4 of glucose are known as epimers.

Insulin stimulates phosphofructokinase.

Muscle phosphorylase is affected by glucagon.

Cis-trans isomerism occurs in compounds with double bonds.

In mammals, the liver and the muscles are the principal organs for gluconeogenesis.