Download Study Sheet: Endomembrane System and Endosymbiosis

Honors Biology
Study Sheet - Chapter 4.7-4.12; 4.15
DETAILS OF THE ENDOMEMBRANE SYSTEM AND ORIGINS OF EUKARYOTIC ORGANELLES
WHAT ORGANELLES ARE CONSIDERED PART OF THE ENDOMEMBRANE SYSTEM
WHAT IS THE OVERALL FUNCTION OF THE ENDOMEMBRANE SYSTEM
SUMMARIZE THE FUNCTIONS OF THE ENDOMEMBRANE SYSTEM
Complete this diagram (see
Figure 4.12) by labeling the rough
ER, smooth ER, transport vesicle,
Golgi, Lysosome, and plasma
membrane. Then trace the path
of a protein from its site of
manufacture in the RER to the
outside of the cell with a red
arrow. Finally, trace the path of
an enzyme incorporated into a
lysosome in blue.
How do transport vesicles help
tie together the endomembrane
system?
Match of Function with the Organelle
_____ 1.
Lipids manufactured here
A. Golgi
_____ 2.
Small structure that makes protein
B. Lysosome
_____ 3.
Sac of digestive enzymes
C. Smooth ER
_____ 4.
Breaks down toxins and drugs in liver
D. Rough ER
_____ 5.
‘Ships’ products to plasma membrane, outside, or
other organelles
E. Central Vacuole
_____ 6.
May store water, wastes in plant cell
F. Transport Vesicle
_____ 7.
How protein and other substances get from ER to
Golgi or Golgi to lysosomes
G. Ribosome
_____ 8.
Defective in Tay-Sachs disease
COMPARING CHLOROPLASTS AND MITOCHONDRIA
Both mitochondria and chloroplasts are energy converters, but their functions are quite different. Compare
them by filling in the chart below:
Chloroplasts
Mitochondria
Found in the following organisms
Carries out the process of….
Converts energy of….
Into chemical energy of…..
Evolved by endosymbiosis from….
ENDOSYMBIOTIC ORIGIN OF MITOCHONDRIA AND CHLOROPLASTS
Describe the Endosymbiosis Theory
List three observations (pieces of evidence) support the idea that mitochondria and chloroplasts were
once free-living bacteria.