List of top Questions asked in ICAR AIEEA (PG)- 2021

Rosalyn Yalow is associated with:

Which of the following is the precursor of coenzyme that participates in one carbon group transfer in purine synthesis?

Coenzymes are converted form of:

Cholesterol is a precursor of:

Carnitine acylcarnitine translocase is present in:

When a molecule of palmitic acid is metabolized through \(\beta\)-oxidation then it produces:

In \(\beta\)-Oxidation, \(\beta\)-Ketoacyl-CoA dehydrogenase catalyzes which of the following reactions?

In a fed state when blood glucose concentration is high then:
Statement I: Glucokinase phosphorylate glucose molecule in the hepatic cell but not in the condition when blood glucose concentration is normal as it has a high Km value
Statement II: Activity of hexokinase enzyme is decreased as most of the enzyme is in the form of enzyme-substrate complex
In light of the above statements, choose the most appropriate answer from the options given below:

Which of the following enzymes require thiamine pyrophosphate as a coenzyme for their activity?
A. Pyruvate decarboxylase
B. Pyruvate dehydrogenase
C. Transketolase
D. Malate dehydrogenase
Choose the correct answer from the options given below:

The enzymes that catalyze the forward reaction in the glycolytic pathway are:
A. Phosphofructokinase
B. Hexokinase
C. Phosphoglycerate kinase
D. Pyruvate kinase
Choose the correct answer from the options given below:

Which of the following statements are true for \(\omega\) (omega) oxidation of fatty acids in mammalian tissue?
A. Introduces a hydroxyl group on to \(\omega\) (omega) carbon in the first step of \(\omega\)-oxidation
B. \(\omega\)-Oxidation occurs in mitochondrial matrix
C. \(\omega\)-Oxidation is a minor pathway for fatty acid oxidation in normal mammalian cell
Choose the correct answer from the options given below:

Which of the following is a negatively charged sugar or sugar derivative?

The members of which of the following pair are epimer to each other?

Which of the following is an example of polyhydroxy aldehyde?

Which of the following statements are true for globular proteins?
A. Polypeptide chains are folded into a spherical shape
B. Globular proteins often contain single type of secondary structure
C. Most of the naturally occurring enzymes are globular protein
D. Most of the regulatory proteins are globular protein in nature
Choose the correct answer from the options given below:

Which of the following statements are correct for the denaturation of protein?
A. Many proteins are denatured with change in pH
B. Many proteins are denatured with change in temperature
C. Many proteins are denatured by contact with the glass and plastic surface
D. Denaturation is a completely irreversible process
Choose the correct answer from the options given below:

If the isoelectric pH of a protein is 3.2 then in a solution of pH 7.4 it will be in:

If a globular protein is present in a nonpolar solvent then the surface of the protein contain amino acids with:
A. Polar side chain
B. Nonpolar side chain
C. Polar but uncharged side chain
Choose the correct answer from the options given below:

Ala-Val-Gly-Val-Met-Try-Lys-Ala-Glu-Ala-Arg-Ala-Val-Try-Gly-His-Gly is the amino acid sequence of a peptide. If this peptide is treated with enzyme trypsin in a proper reaction condition then the maximum number of the smaller peptides that could be produced is:

Which of the following statements are true for Edman degradation?
A. It is a method used for the determination of the primary structure of a protein
B. In this method only the amino-terminal amino acid of a peptide is labeled and removed
C. Ninhydrin is used to label the terminal amino acid
D. Phenyl isothiocyanate is used in the Edman reagent
Choose the correct answer from the options given below:

The reactions which take place in mammalian mitochondria are:
A. \(\beta\)-Oxidation of fatty acid
B. All the reactions of glycolytic cycle
C. All the reaction of urea cycle
D. TCA (tricarboxylic acid) cycle
Choose the correct answer from the options given below:

Which of the following statements about naturally found waxes are true?
A. Biological waxes are ester of short chain saturated and unsaturated fatty acids
B. Biological waxes contain a long chain alcohol in their structure
C. Melting temperature of waxes are generally higher than triglycerides
D. Certain skin glands of vertebrates secret waxes to protect hair and skin and to keep it pliable
Choose the correct answer from the options given below:

Which of the following fatty acids is an omega \((\omega)\)-3 fatty acid?

Match the major class of enzyme with the reaction they catalyze:
A. 1 (Oxidoreductases)
B. 2 (Transferases)
C. 3 (Hydrolases)
D. 4 (Lyases)
Match with the following reactions:
I. Transfer of functional group to water
II. Oxidation-reduction
III. Group transfer
IV. Addition or removal of group to form a double bond
Choose the correct answer from the options given below:

Arrange the products produced in glycolysis serially as they are produced in the glycolytic cycle:
A. 1,3 bisphosphoglycerate
B. 2 phosphoglycerate
C. 3 phosphoglycerate
D. phosphoenol pyruvate
Choose the correct answer from the options given below: