Download Photosynthesis / Cellular Respiration / Cell Organelles

Photosynthesis / Cellular
Respiration / Cell Organelles
Energy in the Ecosystem
Vocabulary Pg. 90 & 91
• Vocabulary Pg. 191
• Number your words
• Vocabulary Pg. 241
• Number your words
In Pg. 92
• What is the function of the mitochondria?
Do it Now pg. 92
• What is the function of the Chloroplast?
Pg. 93
• Cornell Notes
• Title – Cell organelles
• Questions on the left hand side of the page in
red
• Answers on the right hand side of the page in
Blue Black or Pencil
• Summary 5 sentences in Green
Turn to page 172 – in your text book.
• Write Down the three
parts of the cell theory.
• So the question is What
are the three parts of
the cell theory?
• Answer comes from
page 172 in your text
book.
Cell Organelles
© J Beauchemin 2006
What are Cell
Organelles?
• Organelle= “little organ”
• Found only inside
eukaryotic cells
• All the stuff in between
the organelles is cytosol
• Everything in a cell
except the nucleus is
cytoplasm
What is the Cell
Membrane?
• Boundary of the cell
• Made of a phospholipid bilayer
What is the Nucleus?
• Control center of the
cell
• Contains DNA
• Surrounded by a double
membrane
• Usually the easiest
organelle to see under a
microscope
• Usually one per cell
What is the
Cytoskeleton?
• Acts as skeleton and
muscle
• Provides shape and
structure
• Helps move organelles
around the cell
• Made of three types of
filaments
What is the Endoplasmic
Reticulum?
• A.k.a. “ER”
• Connected to nuclear
membrane
• Highway of the cell
• Rough ER: studded with
ribosomes; it makes
proteins
• Smooth ER: no
ribosomes; it makes
lipids
What is the
Ribosome?
• Site of protein synthesis
• Found attached to
rough ER or floating
free in cytosol
• Produced in a part of
the nucleus called the
nucleolus
That looks familiar…what is a
polypeptide?
What is the Golgi
Apparatus?
• Looks like a stack of
plates
• Stores, modifies and
packages proteins
• Molecules transported
to and from the Golgi
by means of vesicles
What are the Lysosomes?
• Garbage disposal of
the cell
• Contain digestive
enzymes that break
down wastes
Which organelles do
lysosomes work with?
What is the Mitochondria?
• “Powerhouse of the
cell”
• Cellular respiration
occurs here to release
energy for the cell to
use
• Bound by a double
membrane
• Has its own strand of
DNA
What is the Chloroplast?
• Found only in plant cells
• Contains the green
pigment chlorophyll
• Site of food (glucose)
production
• Bound by a double
membrane
What is the Cell Wall?
• Found in plant and
bacterial cells
• Rigid, protective barrier
• Located outside of the
cell membrane
• Made of cellulose
(fiber)
What are the
Vacuoles?
• Large central vacuole
usually in plant cells
• Many smaller vacuoles
in animal cells
• Storage container for
water, food, enzymes,
wastes, pigments, etc.
What type of microscope may have
been used to take this picture?
What is the Centriole?
• Aids in cell division
• Usually found only in
animal cells
• Made of microtubules
Where else have we talked
about microtubules?
Do it again pg. 92
• What is the function of the Ribosome?
Pg. 92 Out
• What is the function of the Vacuoles?