transport in cells

Question 1

diffusion

Answer 1

movement of particles from an area of high concentration to an area of low concentration

Question 2

examples of diffusion

Answer 2

nutrients diffusing into the blood, oxygen diffusing into the blood from the air in the alveoli

Question 2

is diffusion an active or passive process ?

Answer 2

passive, it follows the concentration gradient (does not require much energy)

Question 3

osmosis

Answer 3

movement of water molecules from a dilute solution to a more concentrated solution across a partially permeable membrane

Question 4

is osmosis an active or passive process ?

Answer 4

passive as it follows the concentration gradient (does not require much energy)

Question 5

active transport

Answer 5

movement of particles against a concentration gradient which requires energy in the form of ATP

Question 6

is active transport an active or passive process ?

Answer 6

active as it goes against the concentration gradient, therefore it requires a lot of energy

Question 7

examples of active transport

Answer 7

absorption of mineral ions from the soil