Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called_____________________?
(A) Cofactor
(B) Coenzymes
(C) Activator
(D) Enzymes
Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by___________?
(A) Ribosomes
(B) Cytoplasm
(C) Golgi apparatus
(D) Endoplasmic reticulum
Which one forms the raw material for coenzymes_______________________?
(A) Vitamins
(B) Carbohydrates
(C) Proteins
(D) Metals
Enzymes __________________ the activation energy of a chemical reaction?
(A) Increases
(B) Decreases
(C) Does not effect
(D) Increases or decreases depending upon individual enzyme
Amoeboid movements and movement of cyclosis is due to_________?
(A) Microfilaments
(B) Microtubules
(C) Intermediate filaments
(D) Cytoskeleton
Which step causes activation of catalytic site of an enzyme__________________?
(A) Change in pH of the surroundings.
(B) Formation of Enzyme Susstrate complex.
(C) Change in the charge of the active site.
(D) Change in temperature
Lock and Key model was proposed by______________?
(A) Emil Fischer
(B) Koshland
(C) Robin Williams
(D) Rudolph Virchow
Ribonucleo-protein particles are the name of__________?
(A) DNA
(B) Nucleus
(C) Eukaryotic ribosomes
(D) RNA
A group of ribosomes attached to mRNA is known as___________?
(A) Polymer
(B) Polypeptide
(C) Polysomes
(D) Monomer