CBSE
Multiple Choice QuestionsThymine is
5-methyluracil
4-methyluracil
3-methyluracil
1-methyluracil
Which of the following aldoses gives an optically active compound upon reaction with warm dilute nitric acid ?
By adding sodium dodecyl sulphate, during the electrophoresis of proteins, it is possible to :
determine a protein's isoelectric point
determine an enzyme's specific activity
determine the amino acid composition of the protein
presence a proteins native structure and biological activity
Glucose A,
A is
heptanoic acid
2-iodohexane
heptane
heptanol
In the -helix , the hydrogen bonds
are roughly parallel to the axis of the helix
are roughly perpendicular to the axis of the helix
occur mainly between electronegative atoms of the R groups
occur only between some of the amino acids of the helix
Which one of the following is an example for homogeneous catalysis?
Manufacture of ammonia by Haber's process.
Manufacture of sulphuric acid by contact process.
Hydrogenation of oil.
Hydrolysis of sucrose in presence of dilute hydrochloric acid.
Assertion: Insulin is water soluble.
Reason: Insulin is a globular protein.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false
'Tocopherol' is the chemical name of
vitamin K
vitamin E
vitamin H
vitamin D
Maltose is made of the units
-D glucose and -D glucose
-D glucose and -D fructose
-D glucose and -D glucose
-D glucose and -D galactose.
Lysine is least soluble in water in the pH range
3 to 4
5 to 6
6 to 7
9 to 10
