Passive and Active Transport

Question 1

Random molecular
movement of substances
molecule by molecule, either
through intermolecular
spaces in the membrane or
in combination with a carrier
protein

Answer 1

Passive Transport

Question 2

selective transport can occur only when
the solute concentration at the starting point
is higher than at the target sit

Answer 2

Net diffusion

Question 3

Kinetic movement of molecules or ions occurs
through a membrane opening or through
intermolecular spaces without any interaction
with carrier proteins in the membrane

Answer 3

Simple diffusion

Question 4

determines how rapidly a substance
diffuses through the lipid bilayer

Answer 4

Lipid solubility

Question 5

The molecular conformation of the gate or of
its chemical bonds responds to the electrical
potential across the cell membrane

Answer 5

voltage gating