THE PLANT VACUOLE: A MULTIFUNCTIONAL ORGANELLE Flashcards
1
Q
what do plant cells contain that act like vacuoules?
A
acidic membrane enclosed compartments called vacuoles that perform the function of lysosomes
2
Q
vacuole development if similar to that of a lysosomes…
A
with coated vesicles conveying materials for the vacuole to a provacuole, which is similar to an endosome
3
Q
the provacuole eventually matures to form?
A
a functional vacuole that can fill up to as much as 90% of the volume of a plant cell
4
Q
Vacuoles maintain…?
A
-turgor pressure, the osmotic pressure preventing plant cells from collapsing
5
Q
Vacuoles regulate…?
A
cytosolic pH, using ATP dependent proton pumps
6
Q
Vacuoles also serve as…?
A
Storage compartments
- seed storage proteins
- malate (in CAM plants)
- anthocyanins
- soluble and insoluble waste
