Question

Read the following statements for endomembrane system and state them as true(T) or false(F).
A: Convex or trans face of Golgi is maturing face which produce golgian vacuoles.
B: Acidic conditions are maintained in the lysosomes by pumping of $H^{+}$ ions into them
C: Contractile vacuole of Amoeba helps in digestion as well as excretion.
D: Cisternae of ER are abundant in cells of pancreas and brain.

• A. A-F, B-F, C-F, D-T
• B. A-F, B-T, C-T, D-T
• C. A-F, B-T, C-F, D-T
• D. A-T, B-F, C-T, D-F

Answer 1

The correct option is A A-F, B-F, C-F, D-T

Convex or trans face of Golgi is maturing face which produce golgian vacuoles - False, as it is the cis face of Golgi that produces the Golgian vacuoles.

Acidic conditions are maintained in the lysosomes by pumping of H+ ions into them - True, the acidic pH maintains the optimal conditions for the enzymatic activity in the lysosomes.

Contractile vacuole of Amoeba helps in digestion as well as excretion - False, as food vacuoles help in digestion and contractile vacuoles help in maintaining osmoregulation.

Cisternae of ER are abundant in cells of pancreas and brain - True, secrete digestive enzymes to have lots of rough endoplasmic reticulum and Golgi apparatus. It is useful because that way the cell is able to secrete the protein and therefore be able to break it down. RER mostly exists as cisternae which occur in those cells which have synthetic roles as the cells of pancreas, notochord and brain.

So the correct option is ' A-F, B-T, C-F, D-T'.