Download Cells

Part of notes I forgot
• Cytoplasm-Contains
the organelles; site of
most cell activity
• Liquid area where the
work is done!
• Cell wall- Give plants
shape and supports
them.
Cell Wall
Form and function of cells
There are different types of cells
• Eukaryotic
– Animal
– Plant
• Prokaryotic
Eukaryotic cells
• Contain a nucleus
that holds all the DNA
• Has membrane
bound organelles
• Complex: has many
structures and parts.
• Animals and plants
are eukaryotic cells.
Eukaryotic Animal cell
 Animal cells lack cell
walls (extra layer of
protection) and
chloroplasts (energy
producers) and can not
make their own food
 Small vacuole (storage
compartment)
 Some have flagella (tail)
& cilia (hairs) which is
used for movement.
• Energy conversion within an animal cell
would be severely limited by removal of
the cell’s —
•
•
•
•
A
B
C
D
mitochondria
chloroplasts
plastids
lysosomes
Eukaryotic Plant Cell
• Has chloroplasts that
use sunlight to make
energy
• Has a cell wall that
protects and supports
the plant cell.
• Has a large vacuole
which is used to store
materials & excrete
them.
Nucleus
Prokaryotic Cells
• Simple cells.
• Have NO membrane
bound organelles
• No nucleus: DNA is free
to float in the cytoplasm.
• Prokaryotes usually
made of only ONE
CELL.
• Have a cell membrane,
cell wall, and an outer
layer called a capsule.
• Also have cilia & flagella
5
The diagram shows different parts of a human sperm cell.
Which part of the cell is most likely specialized for mobility?
A
B
C
D
Q
R
S
T
Things to do today…
• Egg osmosis lab DAY 2
– I will call groups up two at a time.
• CBA Review
– CBA is next class. It is PRETTY LONG.
– We will go over the questions.
• Animal vs. Plant Cell Lab
– START on it IF you have time.
– We have until Friday to finish this lab.
Egg Osmosis Lab
If you were absent last class get with a group!
• Make observations
• Remove egg CAREFULLY and rinse the egg.
• Weigh egg and observe amount of vinegar left
in beaker.
• Rinse beaker
• Fill beaker with 200mL of syrup and replace
egg.
• Turn in your data sheet.
• THE END. 