Homeroom: Read quietly or
complete any missing
assignments.
SIT IN YOUR ASSIGNED SEAT!!
Warm UP
Plant Cell vs. Animal Cell
How is a plant cell different from an animal
cell? List at least 3 ways.
COMPLETE ON PAGE 39 OF NOTEBOOK.
What does it mean to be alive?
Living things have these characteristics:
• The ability to develop and grow
• Organization
• The ability to respond to the
environment
• The ability to reproduce
• The ability to eat
What is a cell?
The cell is one of the most basic units
of life
There are millions of different types
of cells
Latin origin
Cells come from the Latin word cella
meaning “small room”
First Observed by…..
First discovered in
1665 by Robert
Hooke through a
microscope
Over time the cell
theory was
made…..
Cell Theory
First discovered in 1839 by Matthias Jakob
Schleiden and Theodor Schwann
• All organisms are composed of one or more cells
• Cells come from pre-existing cells
• Vital functions of an organisms occurs within cells
• Cells contain genetic information to carryout cell
function, and passing on information for the next
generation
What does a cell need to do?
• Extract energy for food
• Getting rid of waste
• Movement and secretion of
waste
Types of organisms
Unicellular
Multicellular
• One celled
• Many cells
• Makes their own food
or consumes it
• Gets food from
other sources
• Simple
• Complex
• Move without feet,
another source
• Moves with feet
or appendages
Examples of Single cell organisms
• Amoeba
• Paramecium
• Volvox
• Euglena
Paramecium
How does it move?
Moves by cilia (tiny hairs surrounding the
cell
How does it eat?
Uses cilia to gather food as it sweeps
across its surroundings.
How does it reproduce?
• Sexually and asexually
• One nucleus for each (2 of them!)
• Asexually most of the time-binary
fission
• Sexually if in stressful conditions
 http://www.teachertube.com/viewVideo.php?video_id=48989
Amoeba
How does it move?
Cytoplasmic streaming: movement of the cytoplasm
to gain nutrients
How does it eat?
Using pseudopods “false feet” which engulfs solid
particles.
How does it reproduce?
Asexually-binary fission-splits into two
 http://www.teachertube.com/viewVideo.php?video_id=11290
2
volvox
How does it move?
They live in colonies! Each cell in the
colony has a Flagellum(tail)
How does it eat?
Contains an eye spot; Swims towards light for Photosynthesis
(they’re green!)
How does it reproduce?
Forms a daughter colony inside of Itself that splits off
Sometimes sexually: one colony produces egg
They other produces sperm
 http://www.teachertube.com/viewVideo.php?video_id=48802
Euglena
How do they move?
Flagellum-tail-like structure
How do they eat?
Absorbed through the cell
or photosynthesis.
Has plant and animal characteristics
How do they reproduce?
asexually->binary fission->splits in two
Classwork
Each reading passage will give you more detailed
information about these
organisms. As you are reading, color and label the
pictures as the article
describes.
After you read each section, answer the questions
on page 40. DO NOT WRITE
ON THE READING PASSAGES!
*Once you are done coloring, you will staple your
worksheet onto page 41.