CBSE
Assertion : All enzymes are made up of proteins and all proteins have three dimensional structures.
Reason : Secondary structures of protein are sequence of amino acids.
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.
Rice is deficient in :
lysine
alanine
glycine
leucine
Invert sugar is a mixture of :
glucose and fructose
glucose and lactose
glucose and galactose
only glucose
Assertion : Solubility of proteins is minimum at the isoelectric point.
Reason : At isoelectric point, protein molecule behaves as a zwitter ion.
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.
The main constituent of most natural fibres is :
starch
glycol
cellulose
caprolactum
Which of the following is a non-reducing sugar?
Sucrose
Maltose
Lactose
Mannose
Which enzyme converts glucose to ethanol ?
Diastase
Invertase
Zymase
Both (b) and (c)
In the above sequence , II is :
- alanine
- alanine
ethylene diamine
- amino butyric acid
Mutarotation does not occur in :
sucrose
D-glucose
L-glucose
None of these
Glucose has following functional group :
aldehyde
aldehyde and alcohol
alcohol
ketone and alcohol