Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
Which statement about enzyme is incorrect_________________?
A: Some of them consist solely of protein with no non protein part.
B: They catalyze a chemical reaction without being utilize
C: All enzymes are fibrous Proteins.
D: They without their cofactor are called apoenzyme.
All enzymes are fibrous Proteins.
A three dimensional dcavity bearing a specific charge by which the enzyme reacts with its substrate is called_________________?
A: Active site
B: Binding site
C: Catalytic site
D: Allosteric site
Active site
Amoeboid movements and movement of cyclosis is due to_________?
A: Microfilaments
B: Microtubules
C: Intermediate filaments
D: Cytoskeleton
Microfilaments
Lock and Key model was proposed by______________?
A: Emil Fischer
B: Koshland
C: Robin Williams
D: Rudolph Virchow
Emil Fischer
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 sit
D: E.
E: D. Change in temperature
Formation of Enzyme Susstrate complex.
Ribonucleo-protein particles are the name of__________?
A: DNA
B: Nucleus
C: Eukaryotic ribosomes
D: RNA
Eukaryotic ribosomes
On which of the following component of chloroplast chlorophyll is arranged?
A: Cell membrane
B: Matrix
C: Thylakoids
D: Stroma
Thylakoids
An example of codominance is______________?
A: A blood group
B: B blood group
C: O blood group
D: AB blood group
AB blood group