Question

If a substance is transported across a cell membrane from an area of low concentration to an area of high concentration, you know that

it is a type of active transport.

it is a type of passive transport.

it could be active or passive transport.

Answer 1

It is a type of active transport because it will require energy to move against the concentration gradient (low to high)
- option A

Answer 2

If a substance is transported across a cell membrane from an area of low concentration to an area of high concentration, you know that

it is a type of active transport.

 

What do pinocytosis and phagocytosis have in common?

They are both forms of endocytosis.