order of plant cell structures Flashcards
(19 cards)
the most outer layer of a leaf is a?
cuticle
below the cuticle would be the?
epidermal cells
the two main mesophyll layers are?
palisade and spongy
where are the guard cell and stomata located on a leaf?
on the underside
which vessel transports water in plants? and what kind of cells are the surrounded by?
xylem and they are surrounded by dead hollow cells
which vessel transports sugar in plants? and what kind of cells are the surrounded by?
phloem and surrounded by living cylindrical cells
ions in soil would they travel through diffusion, facilitated diffusion and or active transport?
most would be facilitated diffusion, but some would be active transport
what is cohesion?
attraction of water with water
what is adhesion?
attraction of water to xylem walls
when there’s a pulling force because of leaf transpiration to make water go up the xylem, what property of water lets it move upward?
cohesion
what is root pressure
root cells using energy to pump minerals/ions into xylem which water would then follow because of osmosis
glucose builds up in what layer of the leaf?
palisade and spongy
how does sugar build up a high concentration gradient in the phloem and what tonicity would result?
uses active transport and would result in hypertonicity
what functions does a cell wall provide?
giving a distinct shape, gives structure, prevents cell from bursting
why are phospholipids amphipathic? (dual solubility)
because they have a polar head and a non polar tail
what is turgor pressure and what maintains it?
the water pressure inside the cell, maintained by the central vacuole
what is transpiration?
occurs when plants take up liquid water from the soil and releases water vapour into the air from the leaves
what is a fibrous root?
a root that has no prominent central axis that branches in many directions
what is a macronutrient?
nutrients that provide energy to the plants and are required in larger amounts
