Download Organelles

Notes: Cell Organelles
This is just a few of the organelles
listed in your book, you are required
to know all of them.
Standards

I can describe and identify the cell
structures from descriptions,
micrographs, photographs and
cartoons.
Cell Membrane (plasma membrane)

Basic Functions:
1. Separates
the metabolic processes
(chemical reactions) occurring on the inside
of the cell from the external environment.
2. Is
selectively permeable, meaning it only
allows molecules with certain properties to
enter the cell.
3. Allows
the cell to ingest and excrete large
particles.
Cell Membrane (plasma membrane)

Structure: (what it’s made of)

Phospholipid Bilayer
Many lipid molecules arranged by their
chemical properties to form a fluid “sac”.

Transport Proteins:
Allow certain molecules in and out of cells.

Carbohydrates (sugars):
Act as “tags” to identify the cell.
Cell Membrane (plasma membrane)

Fluid Mosaic Model - Video
Energy for Life

Mitochondria:
 Has
an inner membrane on which the
chemical reactions that make ATP from
glucose take place (cellular respiration).

Chloroplasts:
 Site
of photosynthesis where chlorophyll
uses sunlight to make glucose.
Ribosomes


Where are they found?

Floating free in cytoplasm

Attached to E.R. (making it look rough)
What do they do?


Synthesize proteins
How do they know which ones to
make?
Instructions from DNA are sent to the
ribosomes from the nucleus.
Vesicles

Vesicle:

Any organelle that is a membrane
bound sac located inside the cell.
Vacuole:
Storage for water and chemicals, often
takes up 50-80% of a plant cell.
 Lysosome:

Contains digestive enzymes
Cytoskeleton

Cytoskeleton:
A network of tubes and filaments that
crisscross the inside of the cell.
 Many functions in the cell:
Intercellular mobility (moves vesicles
and other things around the cell.)
 Helps split the cell during mitosis.
 Framework that gives cells their basic
shape.


Many types of fibers and filaments.
Flagellum & Cilia

Flagellum:
The tail-like appendage used for
locomotion

Cilia:
Hair like appendages used for locomotion.
At your table:

With a partner, or as a table get a
wipe board and draw and describe
the following organelles:
Nucleus
 Golgi Apparatus (Golgi Complex)
 Endoplasmic Reticulum (ER)

Rough ER
 Smooth ER
