True Or False On Carbohydrates

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

Galactose and fucose are also present in blood group substances.

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

PGE5 at low concentration stimulates cGMP accumulation.

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

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

Mannosamine is an important constituent of mucoprotein.

Glucuronic acid is not involved in detoxication reactions.

Disaccharides are absorbed and used in the body.

The glycolytic activity is low when there is active gluconeogenesis.

Ribose and Deoxyribose are important constituents of many coenzymes.

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

Glycolysis in erythrocytes even under aerobic condition forms lactate.

The osazone is formed by phenylhydrazine only.

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

Each glycogen molecule contains 5000 to 10000 glucose molecules.

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

Sucrose is also said to be “invert sugar”.

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

Oxaloacetate inhibits succinate dehydrogenase.

Thyroid hormones may decrease the synthesis of adenylate cyclase.

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

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

Dihydroxyacetone phosphate is also converted to glucose in the liver.

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

The absorption of glucose is retarded in hypothyroidism.

Insulin stimulates phosphofructokinase.

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

Starch is a fructosan.

Gluconic acid on heating produces lactones.

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

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

Fructose is actively transported.

Hyaluronic acid does not occur in the skin.

Succinate dehydrogenase takes the help of the coenzyme NAD+.

Cyclic AMP depresses phosphorylase activity.

The citric acid cycle is amphibolic in nature.

The aglycone may be -COOH containing substances.

Inulin produces colour with iodine.

Pyruvate is converted to oxaloacetate by pyruvate decarboxylase.

Fluoride inhibits pyruvate dehydrogenase.

Aldolase requires a coenzyme for its activity.

Glucose on reduction yields mannitol.

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

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.

Disacchariduria results in the absence of disaccharidase.

Muscle phosphorylase is affected by glucagon.

Cis-trans isomerism occurs in compounds with double bonds.

Chondroitin sulphates have a marked capacity to hold water.

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

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

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.