1.9 Active Transport

Question 1

Ehat is active transport?

Answer 1

Is the movement of particles from an area of of low conecntration to an area of high concentration against their concentration gradient.
-requires energy from respiration which is why its called active as energy is needed to carry molecule across membrane

Question 2

Importance of active transport in root hairs

Answer 2

-take up water and mineral ions from the soil
-mineral ions are usually higher concentration in the cells,meaning diffusion cannot take place
-this requires energy from respuration to occur

Question 3

Improtance of active transport in gut

Answer 3

-substnaces such as glucose and amino cauds from your food have to move from your guy into your bloodstream
-sometimes there can be a lower concentration of sugar molecules in the gut than the blood, meaning diffusion cannot take place
-active transport is required to move the sugar to the blood against its concentration gradient