Objective: You will be able to give the
functions of the cell organelles.
Do Now:
• Look at the cell organelle sheet
• Give the function for as many of the cell
organelles as you can remember
Figure 7.7 Overview of an animal cell
Figure 7.8 Overview of a plant cell
Write this statement down
The mitochondria is a site to see
It has lots of energy
Objective: You will be able to describe
the structure and function of the
endomembrane system.
Figure 7.10 Ribosomes
1. Found only in eukaryotic cells
2. A series of membrane bound organelles in
close association
3. Makes and secretes proteins
4. Creates a larger cell membrane
5. Includes the nuclear envelope, E.R.,
Golgi, vesicles, lysosomes, vacuoles, and
the plasma membrane
Figure 7.9 The nucleus and its envelope
Figure 7.11 Endoplasmic reticulum (ER)
Figure 7.12 The Golgi apparatus
Figure 7.14 The formation and functions of lysosomes (Layer 1)
Figure 7.14 The formation and functions of lysosomes (Layer 2)
Figure 7.14 The formation and functions of lysosomes (Layer 3)
Figure 7.6 The plasma membrane
Figure 6.16 Review: relationships
among organelles of the
endomembrane system
1 Nuclear envelope is
connected to rough ER,
which is also continuous
with smooth ER
Nucleus
Rough ER
2 Membranes and proteins
produced by the ER flow in
the form of transport vesicles
to the Golgi
Smooth ER
cis Golgi
Nuclear envelope
Transport
vesicle
3 Golgi pinches off transport
vesicles and other vesicles that
give rise to lysosomes and
vacuoles
trans Golgi
Plasma
membrane
4 Lysosome available 5 Transport vesicle carries 6 Plasma membrane expands
for fusion with another proteins to plasma
by fusion of vesicles; proteins
vesicle for digestion
membrane for secretion
are secreted from cell
Group Activity
• Think back to the activity in which you created
the cell park
• How can you modify your park to include the
structures and functions of the endomembrane
system?
• Write a small paragraph describing the
endomembrane system
• Include a drawing of just the endomembrane
system
Objective: You will be able to identify
the parts of he mitochondria and the
chloroplasts.
Do Now:
• Read the section “mitochondria and
chloroplasts” on p. 179-180
• Give one similarity between these two
organelles
• Mitochondria are enclosed by two
membranes
– A smooth outer membrane
– An inner membrane folded into cristae
Mitochondrion
Intermembrane space
Outer
membrane
Free
ribosomes
in the
mitochondrial
matrix
Inner
membrane
Cristae
Matrix
Mitochondrial
DNA
Figure 6.17
100 µm
• Chloroplasts
– Are found in leaves and other green organs of
plants and in algae
Chloroplast
Ribosomes
Stroma
Chloroplast
DNA
Inner and outer
membranes
Granum
1 µm
Figure 6.18
Thylakoid
• Chloroplast structure includes
– Thylakoids, membranous sacs
– Stroma, the internal fluid
Figure 7.4 A prokaryotic cell
Figure 7.7 Overview of an animal cell
Figure 7.8 Overview of a plant cell