Transport in the Xylem and Water Movement Within the Root

What type of transport is used to move minerals in the soil towards the root? Why?

Bulk (mass) flow because it’s carried by the water

What type of transport is used to move minerals into the root from the soil? Why?

Active transport because there are more ions in the root than the soil so it moves against concentration gradient

What type of transport is used to move water from the soil towards the root? Why?

Diffusion because it moves from high to low concentration

What type of transport is used to move water from the soil into the root? Why?

Osmosis (water moves from high to low concentration through a membrane)

What are the three types of water movement within the root?

Apoplast, symplast, and vacuolar

Apoplast (how and where does it occur?)

Water moves by mass flow/ diffusion→ between space in between cells

Symplast (how and where does it occur?)

Water moves by diffusion→ through the plasmoclesmata and cytoplasm of adjacent cells

Vacoular (how and where does it occur)

Water moves by osmosis through central vacuoles (C.V.= central vacuole)

What is the term for the membrane of the central vacuole?

Tonoplast membrane