Question

Materials are able to move across a cell membrane through one of two methods: active transport or passive transport. What is the difference between active transport and passive transport?
a
Active transport requires the cell to form vesicles, while passive transport requires the use of membrane pumps.
b
Passive transport is the only form of transport that requires the use of proteins.
c
Active transport is the only form of transport that requires the use of proteins.
d
Active transport requires the cell to expend energy, while passive transport does not.

Answer 1

Hello! The correct answer is (D) active transport requires the cell to expend energy (through the form of ATP), while passive transport (diffusion) does not.

Answer 2

The difference between passive and active transport is "Active transport requires the cell to expend energy, while passive transport does not".

CELLULAR TRANSPORT:

• Materials or substances move into and out of cell based on the permeability of the cell membrane. The movement occurs via two methods namely: active transport and passive transport.

1. Active transport: Active transport is the movement of materials with the input of energy in form of ATP. Examples of active transport is the pumping of sodium and potassium ions into and out of cells
2. Passive transport: This is the movement of materials down a concentration gradient, hence, no energy input is needed e.g osmosis and simple diffusion.

• Therefore, the difference between passive and active transport is "Active transport requires the cell to expend energy, while passive transport does not".

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