Which of the following are non-reducing sugars?
(D) (a) & (b)
Main reserve food material in Asteraceae family members is in the form of
Agar-Agar is present in the cell wall of
(A) Brown algae
(B) Red algae
(C) Green algae
(D) All the above
An alcohol of mannose found in brown algae is
(D) All the above
Most basic amino acid is
When two polypeptide chains are joined by hydrogen bonding it is a
(A) Pleated sheet
(D) Hydrogen bond
The functional group found in amino acid is
(A) -COOH group
(B) -NH 2 group
(C) -CH 3 group
(D) both (a) and (b)
A tripeptide contains ___ peptide links
At the isoelectric point, amino acids are present as
Nature of aqueous solutions of two different amino acids X and Y are acidic and basic. Now X and Y are
(A) Alanine and valine
(B) Aspartic acid and aspargine
(C) Glutamine and gutamine acid
(D) Aspartic acid and lysine
Which of the following molecule is incapable of forming zwitter ion?
(D) Picric acid
Nature of amino acids (acidic or basic) is decided based on the number of
(A) -COOH groups
(B) –NH2 groups
(C) both (a) and (b)
(D) None of the above
Dyenin is unique protein of
The caesin of milk is a
Simplest amino acid which is optically inactive is
Which of the following contains nitrogen?
? -pleated structure of proteins is
(A) Primary structure
(B) Secondary structure
(C) Tertiary structure
(D) Quaternary structure
Which of the following statement is not correct?
(A) Proteins are polyamides formed from amino acids
(B) Except glycine, all other amino acids show optical activity
(C) Natural proteins are made up of L-isomers of amino acids.
(D) In ? amino acids, -NH2 and -COOH groups are attached to different carbon atoms
Which one of the following is not a protein?
Proteins cannot be denatured by the addition of