osmosis, active transport and diffusion

Question 1

define osmosis

Answer 1

the movement of water from a dilute to a concentrated solution through a partially permeable membrane

Question 2

define active transport

Answer 2

the movement of molecules across a cell membrane from an area of low concentration to an area of high concentration, against the concentration gradient, requiring energy

Question 3

does active transport require energy

Answer 3

yes

Question 4

does active transport go with or against the concentration gradient

Answer 4

against

Question 5

define diffusion

Answer 5

the movement of molecules from an area of higher concentration to an area of lower concentration