Q1.Enzymes catalysing in the link together of two compounds are
Answer : Option BExplaination / Solution:
Ligases catalyses the linking together of 2 compounds, e.g.,enzymes which catalyse joining of C-O, C-S, C-N, P-O etc. bonds.
Answer : Option BExplaination / Solution:
Apoenzyme: The polypeptide or protein part of the enzyme is called the apoenzyme and may be inactive in its original synthesized structure.
The inactive form of the apoenzyme is known as a proenzyme or zymogen.
Q3.Nicotinamide can be synthesised in human body from
Answer : Option AExplaination / Solution:
Tryptophan is an amino acid needed for normal growth in infants and for nitrogen balance in adults. Nicotinamidecan be synthesized in human body from tryptophan.
Q4.Important site for formation of glycoproteins and glycolipids is
Answer : Option BExplaination / Solution:
Synthesis of glycoproteins and glycolipids take place in Golgi apparatus inside the cell. Golgi apparatus is located near nucleus of the cell.
Answer : Option CExplaination / Solution: Most abundant mineral in body fluids are Na+and Cl−ions. These ions are responsible for generation of impulses and its transfer through neuron cells.
Q9.Which of the following are aromatic amino acids?
Answer : Option DExplaination / Solution:
Based on number of amino and carboxyl groups, there are acidic (e.g., glutamic acid), basic (lysine) and neutral (valine) amino acids. Similarly, there are aromatic amino acids (tyrosine, phenylalanine, tryptophan).
Answer : Option CExplaination / Solution:
Side chains which have pure hydrocarbon alkyl groups (alkane branches) or aromatic (benzene rings) are non-polar. Examples include valine, alanine, leucine, isoleucine, phenylalanine.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0