Chapter 7 Flashcards
What is endocytosis?
the cell taking in macromolecules by forming vesicles from plasma membrane
Three types of endocytosis
phagocytosis
pinocytosis
receptor-mediated endocytosis
phagocytosis
eating
meaning literal solids
pinocytosis
drinking
liquids
receptor mediated endocytosis
binding of ligand to recptors triggers vesicle formation
what is a ligand
any molecule that bonds specifically to a receptor site of another molecule
what can enter through the receptor mediated endocytosis that is not good for cell
viruses and other contagion
covid
Bulk transport requires …
energy
when light hits stomata cell…
it causes K+ to actively transport it indide decreasing pressure and water follows passively
describe symplast
In the active absorption, the water first enters the cell sap and passes from one cell to another. This type of movement where protoplasm is involved is called symplast.
descrive apoplast
In passive absorption, water moves through the apoplast of the root. The apoplast path includes the cell wall and intercellular spaces.
what is needed in apopast that isnt in symplast
co-transport
uses electrochemical gradient
hyotonic solution
turgid
lysed
hypertonic
shriveled
plasmolized
isotonic
normal
flaccid
