MEDIUM
Earn 100

Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

Question Image

62.5% studentsanswered this correctly

Important Questions on Biomolecules

EASY
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Optical activity of DNA is due to its:
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Phospholipids are formed by the esterification of:
EASY
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Which one of the following pairs of molecules never forms a hydrogen bond between them?
HARD
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
The activity of a certain protein is dependent on its phosphorylation. A mutation in its gene changed a single amino acid which affected the function of the molecule. Which amino acid change is most likely to account for this observation?
EASY
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
In a protein molecule various amino acids are linked together by:
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Which of the following amino acids is NOT involved in gluconeogenesis?
EASY
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Concanavalin A is:
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
The Fischer presentation of D-glucose is given below

Question Image

The correct structure(s) of β-L- glucopyranose is(are)
EASY
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
How many different proteins consisting of 100 amino acids can be formed from 20 different amino acids?
HARD
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Which one of the following techniques is used for the detection of proteins?
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Match the following lists.
  List-I   List-II
(A) Glycerol (I) Phospholipid
(B) Aromatic amino acid (II) Lower melting point
(C) Lecithin (III) Trihydroxypropane
(D) Gingelly oil (IV) Tryptophan
The correct match is:
HARD
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Two tubes labelled 'P' and 'Q' contain foodstuff. Tube 'P' gave a positive test with Benedict's solution while tube 'Q' gave a positive test with nitric acid. Which of the following is correct?
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
A 25000 Da protein contains a single binding site for a molecule (ligand), whose molecular weight is 2500 Da. Assuming high affinity and physiologically irreversible binding the amount of the ligand required to occupy all the binding sites in 10 mg protein will be:
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Which of the following is not polymeric?
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids

Match the following

(a) Inhibitor of catalytic activity (i) Ricin
(b) Possess peptide bonds (ii) Malonate
(c) Cell wall material in fungi (iii) Chitin
(d) Secondary metabolite (iv) Collagen

Choose the correct option from the following

EASY
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Identify the substances having glycosidic bond and peptide bond, respectively in their structure.
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Choose the CORRECT combination of statements given below related to cysteine residue in proteins.

i. Cysteine can be linked to tyrosine by S-O bond.

ii. Cysteine can be linked to another cysteine by S-S bond.

iii. Cysteine can complex with Zn2+.

iv. Cysteine can be linked to methionine by S-S bond
EASY
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids
Which one of the following statements is wrong?
MEDIUM
Biology>Cell Structure and Function>Biomolecules>Structure and Functions of Lipids

Following are the statements with reference to 'lipids'.
(a) Lipids having only single bonds are called unsaturated fatty acids.
(b) Lecithin is a phospholipid.
(c) Trihydroxy propane is glycerol.
(d) Palmitic acid has 20 carbon atoms including carboxyl carbon.
(e) Arachidonic acid has 16 carbon atoms.

Choose the correct answer from the options given below.