BIOMOLECULES

Q13.. Which of the following monosaccharides are present as five membered cyclic

structure (furanose structure)?

•  Ribose
•  Glucose
• Fructose
•  Galactose

Q14. The aldose sugar is

•  Glycerose 
•  Ribulose
• Erythrulose
•   Dihydoxyacetone

Q15.A triose sugar is

•  Glycerose
•   Ribose
• Erythrose
•  Fructose

Q16. A pentose sugar is

• Dihydroxyacetone 
•  Ribulose
•  Erythrose
•  Glucose

 

Q17. Keratan sulphate is found in abundance

in

•  Heart muscle 
•  Liver
•  Adrenal cortex 
•  Cornea

Q18. Repeating units of hyaluronic acid are

•  N-acetyl glucosamine and D-glucuronic acid
•  N-acetyl galactosamine and D-glucuronic acid
•  N-acetyl glucosamine and galactose
•  N-acetyl galactosamine and L- iduronic acid

Q19.A carbohydrate found only in milk is

•  Glucose
•   Galactose
• Lactose
•   Maltose

Q20.A carbohydrate, known commonly as

invert sugar, is

•  Fructose
•   Sucrose
•  Glucose
•   Lactose

Q21.A heteropolysacchraide among the

following is

•  Inulin 
•  Cellulose
•  Heparin 
•  Dextrin

Q22. The smallest monosaccharide having
furanose ring structure is

•  Erythrose 
•  Ribose
•  Glucose
•   Fructose

Q23. Which of the following is an epimeric pair?

•  Glucose and fructose
•  Glucose and galactose
•  Galactose and mannose
•  Lactose and maltose

Q24.α-Glycosidic bond is present in

• Lactose
• Maltose
•  Sucrose
•   All of these

. Q25.Branching occurs in glycogen approxi-

mately after every

•  Five glucose units
•  Ten glucose units
•  Fifteen glucose units
•  Twenty glucose units

. Q26.N–Acetylglucosamnine is present in

•  Hyaluronic acid 
•  Chondroitin sulphate
•  Heparin 
•  All of these

  Q26.Iodine gives a red colour with

• Starch
•  Dextrin
•  Glycogen 
•  Inulin