Download Vacuoles

Vacuoles
Background
 A vacuole is a membrane bound organelle.
 They are found in the cytoplasm of cells.
 Found in both plant and animal cells.
 A good example can be seen in most plant cells.
Function
 The vacuole performs intracellular secretion, excretion,
storage, and digestion.
 The exact function of a specific vacuole is specialized
depending on the function of the cell of which it is a part.
 In plants vacuoles help maintain turgor pressure, which
allows the plants to support structures such as leaves and
flowers.
Turgor Pressure In Plants
General Structure
 Vacuoles are enclosed
within a cell.
 They are surrounded with a
membrane called a
Tonoplast.
 The Tonoplast contains
channels for water that are
used to help maintain the
cell’s osmotic balance.
Diseases
 There are no known diseases involving the vacuole.
 However, a loss of water within a plant will cause wilting due
to the loss of turgor pressure.
Questions
What disease is associated with Vacuoles?
A) The common cold
B) The flu
C) Athlete's foot
D) None
What is one role that a vacuole plays in a plant cell?
A) Turgor Pressure
B) Photosynthesis
C) Acorn Growth
D) The color of bark