Biomolecules TS

The given figure show as:

An example of a metabolic conversion not catalyzed by an enzyme in a living system will be:

Statement-I: Co-enzyme nicotinamide adenine dinucleotide (NAD) and NADP contain a vitamin niacin.
Statement-II: The association of co-enzyme with apoenzyme is enduring.

Statement-I: Enzyme substrate complex is short-lived.
Statement-II: Cofactors are bound to the enzyme to make the enzyme catalytically active.

An organic substance bound to an enzyme and essential for its activity is

Triglyceride consists of

Which of the following statements is incorrect regarding proteins?

Choose the incorrect statement w.r.t. enzyme

Identify the correct statement from those given below

Assertion (A): Exoskeleton of arthropods have a complex polysaccharide ca led chitin.
Reason (R): Chitin is a polymer of sugar derivative N-acetyl glucosamine.

Assertion (A): When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor.
Reason (R): In the presence of a competitive inhibitor, the formation of the ES complex increases.

Enzyme required for joining of C–O, C–S, C–N, and P–O bonds is

Study the given statements.
I. In peroxidase and catalase, haem is the prosthetic group and it is a part of the active site of the enzyme.
II. The four main categories of macromolecules present in living systems are proteins, nucleic acids, carbohydrates, and lipids.
III. Hydrolysis of starch into glucose is an organic chemical reaction.
IV. The building blocks or monomers of nucleic acid molecules are ca led nucleosides.
How many statements are correct?

Assertion (A): Nucleic acids like DNA and RNA consist of nucleotides only.
Reason (R): The heterocyclic compounds in nucleic acids are the nitrogenous bases named adenine, guanine, uracil, cytosine, and thymine.

Assertion (A): The primary structure of protein is the positional information of amino acids in protein.
Reason (R): An enzyme like any protein has a primary structure only, i.e., amino acid sequence of the protein.

Statement I: Primary metabolites have identifiable functions and play known roles in normal physiological processes.
Statement II: Some secondary metabolites have ecological importance

Assertion: Metals ions are important for functioning of cells.
Reason: Metal ions may act as co-factor for several enzymes.

The three chemically distinct components of a nucleotide are

What does the term ‘ash’ refer to in the analysis of  living tissue?

Even in the presence of malonate, the velocity of the reaction catalyzed by the enzyme succinic dehydrogenase can be increased by: