Biomolecules

On oxidation with a mild oxidising agent like Br₂/H₂0, the glucose is oxidized to

• saccharic acid

• glucaric acid

• gluconic acid

• valeric acid

Invert sugar is

• a type of cane sugar

• optically inactive form of sugar

• mixture of glucose and galactose

• mixture of glucose and fructose in equimolar quantities

Glycosidic linkage is an

• amide linkage

• ester linkage

• ether linkage

• acetyl linkage

Which reagent is used to convert glucose into saccharic acid?

• Br₂/H₂O

• Nitric acid

• Alkaline solution of iodine

• Ammonium hydroxide

Which of the following is a non-reducing sugar?

• Glucose

• Sucrose

• Maltose

• Lactose

The anomeric carbon in D (+) glucose is

• C-1 carbon

• C-2 carbon

• C-5 carbon

• C-6 carbon

The letter ‘D’ in carbohydrates signifies

• dextrorotatory

• configuration

• diamagnetic nature

• mode of synthesis

Maltose is made up of

• two α-D-glucose

• normal β-D-glucose

• α- and β-D-glucose

• fructose

What is the basic formulae for starch?

• (C₆H₁₂O₆)_n

• (C₆H₁₀O₅)_n

• C₁₂O₁₂O₁₁

• (C₆H₁₂O₄)_n

Which of the following treatment will convert starch directly into glucose?

• Heating with dilute H₂SO₄

• Fermentation by diastase

• Fermentation by zymase

• Heating with dilute NaOH