When molecules move from the area of lower concentration to the area of higher concentration and energy is used, it is called
filtration
osmosis
active transport
passive transport
Movement of molecules of a substance from the region of their higher concentration to the region of their lower concentration without the involvement of a separating membrane is called
(a) Osmosis (b) Diffusion
(c) Active transport (d) Capillarity
Assertion (A): Active transport is uphill transport.
Reason (R): Active transport uses energy to pump molecules against its concentration gradient.
Choose the correct option.