MCQs is one of the best ways to test a student’s comprehension of a concept. Academic Task subject experts have prepared these Biology MCQs based on current trends and practices. Most repeated general science Biology MCQs section, frequently encountered in GAT, NAT, GRE, SAT, MCAT Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams or tests as well as government and private job assessments. The content of qurumcqs.com is updated regularly, with the addition of new topics, more questions, and useful links. Medical biology most repeated MCQs include all topics like Basic Biology MCQs for Entry Test, MCQ on Cell Signaling, MCQ on Mollusca, MCQ on Mollusca, MCQ on Respiratory System, MCQ on Nutrition in Plants, MCQ on Vitamins, MCQ on Plant Tissue Culture, MCQ on Bioinformatics, MCQ on Food Microbiology, MCQ on Food Microbiology, Human Health and Disease, Genetics, etc.
101. Inhibitors which block the enzyme by forming weak bond are called___________?
A. Competitive inhibitors.
B. Non-competitive inhibitors
C. Irreversible inhibitors.
D. Both a and b
102. Which of the statement about cell membrane is not true?
A. It contains protein molecules embedded in lipid bilayer
B. It is a differentially permeable membrane.
C. It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles.
D. It may get infolded to engulf solid or liquid material.
103. A substance which binds at the active site of the enzyme but does not result in the formation of the products is called________________?
A. Irreversible inhibitor
B. Reversible inhibitor
C. Competitive inhibitor
D. Non-competitive inhibitor
104. A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called_______________?
A. Co-enzyme
B. Blocker
C. Inhibitor
D. Cofactor
105. Optimal temperature of enzymes present in human body is_____________?
A. 27?C
B. 37?C
C. 47?C
D. 30?C
106. Strengthening material of prokaryotic cell wall is__________?
A. Cellulose
B. Chitin
C. Inorganic salts silica waxes and ligin
D. Peptidoglycan or Murein.
107. Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called__________?
A. Cytosol
B. Cisternae
C. Polysomes
D. Cristae
108. Whone is not the function of endoplasmic reticulum?
A. Nerve impulse conduction
B. Transport of material
C. Mechanical support
D. Synthesis of conjugated molecules
109. 60S and 40S subunit combine to form ________ particle.
A. 100 S
B. 90 S
C. 80 S
D. 70 S
110. Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are pinched off from ________ surface of Golgi apparatus:
A. Forming face
B. Maturating face
C. Any of them
D. None of these