Question

The cell membrane controls the traffic of molecules into and out of the cell, prevents the entry of toxic material into the cell and permits selective uptake of nutrients. Which property of the membrane can this be attributed to

Answer 1

Selective permeability/Semi-permeability/Partial permiability. Take your pick.

Answer 2

Carbohydrates present on the membrane
Lipid bilayer of the membrane
Membrane fluidity
Semi-permeable nature of the membrane

Answer 3

Last one. Semi-permeable nature of the membrane.

Answer 4

Become turguid. (Endosmosis will occur)

Answer 5

Third one.

Answer 6

The cells might swell and burst.

Answer 7

Select the most appropriate statement with respect to cellular respiration in humans.

Answer 8

Humans can only exhibit anaerobic cellular respiration.
Humans can exhibit both aerobic and anaerobic cellular respiration.
Humans can only exhibit aerobic cellular respiration.

Answer 9

Both