Download Slide 1

‫بنام خدا‬
LYSOSOMES
-
Surrounded by a single membrane.
Derived (buds of) from Golgi apparatus.
Contains degradative enzymes for digesting foreign bodies,
cellular wastes and other toxins.
 PRIMARY LYSOSOME - is a membrane bounded sac that buds off
from the GA apparatus
 SECONDARY LYSOSOME - is a primary lysosome that fuses/
phagocytosis with any solid material in the cell (e.g. organelle or
bacteria)
vesicles
from ER
vesicles
leaving
Golgi
complex
Golgi
complex
Lysosomes
• Contain digestive enzymes
• Break down old cell parts
Cytoskeleton Functions
• Support and shape
cell
• Anchor many
organelles
• Move substances from
one part of the cell to
another
• Enable cell division
• Enable cell movement
CYTOSKELETON
- A dynamic internal framework/ scaffolding
FUNCTION;
1. Contributes to cell shape
2. Coordinates cytoplasm and its components
(e.g. act in cell division, muscle movement)
- Composed of 3 elements:
1. MICROTUBULES
2. MICROFILAMENTS
3. INTERMEDIATE FILAMENTS