STANDARD Chemistry Biomolecules Class 12 Questions
36 questions
Identify the basic amino acid from the following.
The general formula of carbohydrates is
The two functional groups characteristic of sugars are
Cellulose is a
Benedict's solution is used to identify
The given structures (I) and (II) represent configuration of the simplest sugar glyceraldehyde. Which of the following statements is not correct for the structures? CHO | H — C — OH | CH₂OH (I) CHO | HO — C — H | CH₂OH (II)
How many C-atoms are there in a pyranose ring?
On oxidation with a mild oxidising agent like Br₂/H₂O, the glucose is oxidised to
Among the naturally occurring carbohydrates, furanose ring is found in the
Which one of the following sets of monosaccharides forms sucrose?
What are the hydrolysis products of lactose?
Which of the following statements is not true?
Match the following and choose the correct combination from the options given
The glycosidic linkage involved in linking the glucose units in amylose part of starch is
Which of the following is not true about amino acids?
Which one of the amino acids can be synthesised in the body?
Mark the incorrect match.
Which of the following is basic amino acid?
Amino acids generally exist in the form of Zwitter ions. This means they contain
Which of the following represents a peptide chain?
Mark the incorrect example.
Secondary structure of protein refers to
Proteins are condensation polymers of
Most common types of secondary structures of proteins are
Which of the following statements is true for proteins?
On boiling the egg, what structural changes are taking place in the egg white?
A nucleoside on hydrolysis gives
D(+)-glucose reacts with hydroxylamine and yields an oxime. The structure of the oxime would be
Which of the following carbohydrates rotates the plane polarized light to the left?
Which of the following is a reducing sugar?
The non-essential amino acid among the following is
Which of the following sets of amino acids contains only essential amino acids?
In a protein molecule various amino acids are linked together by
Which of the following statements is not correct?
Which one of the following bases is not present in DNA?
Which of the following is the correct structure of adenosine?