Transcript Chapter 3 Section 3

Cell Organelles
Bell Ringer
What makes up the cell membrane?
Nucleus
Nucleus
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Controls the Cell
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Surrounded by a Nuclear Envelope

Contains DNA

Covered by Nuclear Pores
Endoplasmic Reticulum
Endoplasmic Reticulum

An extensive system of internal
membranes that move proteins and other
substances through the cell
2 Types
 Rough ER
 Smooth ER

Rough ER
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Covered in Ribosomes
Helps transport the proteins that are made
by its attached ribosomes.
Proteins cross the Rough ER Membrane
and pinch off to form a vesicle.
Vesicle

Small membrane bound sac that
transports substances in cells.
Smooth Endoplasmic Reticulum
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
Lacks Ribosomes
Smooth ER makes lipids and breaks down
toxic substances
Packaging Proteins
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Newly packaged proteins move from the ER to
the Golgi Apparatus
Golgi Apparatus – set of flattened membrane
bound sacs that serve as the packaging and
distribution center of the cell
Enzymes inside the golgi modify the proteins,
which then are enclosed in new Vesicles that
bud from the surface of the golgi apparatus
Golgi Apparatus
Lysosomes
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Type of vesicle that contain a cells
digestive enzymes
Made by the golgi apparatus and digest
worn out particles, bacteria, or viruses
found in the cell
Groups!

List and determine the steps of packaging
the distribution of proteins
Mitochondria
Mitochondria

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Harvests energy from organic compounds
to make ATP.
Mitochondria have a large surface area.
A folded inner membrane of the
mitochondria is where production of ATP
occurs.
Mitochondria
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Why would muscle cells contain high
amounts of mitochondria?
Plant vs Animal Cell

List three differences between plant and
animal cells
Plant

Plant cells have three additional structures
than animal cells
1. Cell Wall
 2. Chloroplasts
 3. Central Vacuole

Cell Wall

Surrounds the cell membrane

Composed of Proteins and Carbohydrates

Helps support and maintain shape of cell
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Connects it to adjacent cells
Chloroplasts

Organelles that use light energy to make
Carbohydrates from Carbon Dioxide and
Water
Central Vacuole

Stores water in the cell

What happens when this is full/empty?
Plant Cell
Animal Cell