Plant Vascular Systems Flashcards
how does water go to animal cells?
in and out of plasma membrane
what are the holes in the cell membrane called
plasmadesmota
what happens to the cytoplasm when the xylem dies
it goes away creating empty tubes
what is the shared cytoplasm called
symplast
what are the two cell types of xylem
tracheids and vessel pits
what is the ratio for radius and water flow
1:4
what are the two properties of water that allow it to travel through the xylem
cohesion and adhesion
water sticking to each other
cohesion
water sticking to something else
adhesion
hydrogen bonds in water allows adhesion to what
between the water molecules and cellulose and xylem wall
hydrogen bonds in water allows cohesion to what
between the water molecules in xylem
is the transport of water through the xylem active or passive
passive
how does the roots get the water in the first place
the roots need to be saltier/sweeter then the soil around it
what happens to the disruption if you widen the tube
the disruption will rise
how does water move through the xylem
through negative potential letting the water travel through the plant to get to the air to evaporate.
what kind of energy is xylem using
passive
the what the water potential, the more the water wants to go
lower
what does the roots need to attract water
cations
why can’t the roots get the cations
the soil is negatively charged
how does the roots get the cations
the by-product of respiration
how does the roots overcome the clay problem
proton pumps used to create protons to exchange for the cations [cation exchange]
how do plants get protons
the product of respiration [proton pumps]
why won’t the soil keep fertilizers
because it won’t bind to the soil due to them being the same charge
what are the consequences of the fertilizers
- goes to the everglades which is a low nutrient environment and is being taken over by plants not native to it
- flow to the ocean which indirectly harms coral by feeding the algae their competitor
what tubes does the water move through in the tubes
vasular cylinder
what are the two routes water takes to go to the vascular cylinder?
Symplastic and Apoplastic