Biology Mcqs

Ribosomes + m-RNA?

A. Polysome
B. Phlosome
C. Polosome
D. None of these

Which of the following statement is incorrect about Glyoxisomes?

A. They contain enzymes which help in conversion of fatty acids into carbohydrate
B. They are abundant in soyabeans but absent in pea.
C. They are present through out life of a plant and provide them whth energy through Glyoxylate cycle.
D. They are signle membranous organelles

Pancreas produces secretory granules that help in digestion. These granules after passing through endoplasmic reticulum are ched off from ________ surface of Golgi apparatus:

A. Forming face
B. Maturating face
C. Any of them
D. None of these

60S and 40S subunit combine to form ________ particle.

A. 100 S
B. 90 S
C. 80 S
D. 70 S

Whone is not the function of endoplasmic reticulum?

A. Nerve impulse conduction
B. Transport of material
C. Mechanical support
D. Synthesis of conjugated molecules

Strengthening material of prokaryotic cell wall is__________?

A. Cellulose
B. Chitin
C. Inorganic salts silica waxes and ligin
D. Peptidoglycan or Murein.

Optimal temperature of enzymes present in human body is_____________?

A. 27?C
B. 37?C
C. 47?C
D. 30?C

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