There are 20 naturally occurring amino acids. The maximum number of tripeptides that can be obtained
6470
7465
5360
8000
What is nature of glucose - glucose linkage in starch that makes its so susceptible to acid hydrolysis?
Starch is hemiacetal
Starch is acetal
Starch is polymer
Starch contains only few molecules of glucose
Which one of the following does not correctly match with each other?
Silk - polyamide
Lipase - enzyme
Butter - fat
Oxytocin - enzyme
In an alkaline medium, glycine predominantly exists as/in/an
cation
anion
Zwitter on
covalent form
In alkaline medium, alanine exists predominantly as
Zwitter ion
Which of the following does not exhibit the phenomenon of mutarotation?
( - ) fructose
( + ) sucrose
( + ) lactose
( + ) maltose
Number of chiral carbon atoms in β -D ( + )glucose is
five
six
three
four
Complete hydrolysis of cellulose gives
D - fructose
D -ribose
D - glucose
L - glucose
Which one of the following statements is incorrect for the sucrose?
It is obtained from cane sugar.
It is not reducing sugar.
On hydrolysis, it gives equal quantities of D -glucose and D - fructose
It gives aspartame when it is heated at 210oC.
When sucrose is heated with conc. HNO3, the product formed is
Sucrose nitrate
adipic acid
oxalic acid
citric acid
