Nutrient Exchange in Plants

Question 1

How do nutrients enter the soil (other than from plants)?

Answer 1

Natural weathering of crust materials, decay of organic material by decomposers

Question 2

what are macronutrients?

Answer 2

they are required in relatively large quantities. examples include nitrogen, potassium, calcium and sulfur

Question 3

what are micronutrients?

Answer 3

not required in as large quantities as macronutrients. examples include iron, zinc, copper, chlorine, and manganese

Question 4

What is nutrient absorption facilitated by?

Answer 4

The root system

Question 5

Explain how nutrients enter the plant.

Answer 5

Nutrients in the soil diffuse into root epidermal cells by facilitated diffusion and active transport. some epidermal cells have root hairs which increase the surface area to volume ratio.

Question 6

How do root epidermal cells facilitate diffusion of nutrients?

Answer 6

Their membranes have a lot of channel and carrier proteins that facilitate diffusion.

Question 7

Explain the process of nutrient absorption in plants.

Answer 7

Nutrients enter plant roots and diffuse into vascular tissue, and are transported to cells around the plant for metabolism and growth.