Plant nutrition acquisition and transport

What are the things that plants need

• light

• CO2

• O2

• P

• K

• N

• Mg

• S

• Ca

• H2O

Palisade Mesophyll (stomata)

Cells near the top of leaves. are tall, thin and lightly packed

Spongy mesophyll (stamata)

cells are more unevenly shaped and surrounded by air spaces

What do the guard cells do?

they open and close the stomates to allow movement of CO2, O2, and water vapor

what relationship do mycorrhizal fungi have to roots

mycorrhizal fungi increase the effective surface area of the root for nutrient absorption

What is the function of the Xylem

it is the uptake of water and nutrients from the roots to the stem

what is the function of the Phloem

it transport sugars, amino acids, etc. to the roots for nutrients

what is Apoplast movement

the movement of water outside cell membranes through cell walls and intercellular spaces.

what is Symplast movement

the movement of water inside cell membranes through the cytoplasm

what is capilarity

The ability of water to move through small spaces, like soil or plant vessels, due to cohesive and adhesive forces.

what substances does Phloem conduct

• sugar (food)

• hormones

• amino acids

• lipids

• micronutrients

• viruses

What is an osmotic pump

A device that uses osmotic pressure to move fluids across a semipermeable membrane, often used in biological systems to regulate fluid transport.