Transcript Cells - SchoolRack

Cells
CELLS
VOCABULARY
Cell,
 organism,
 nucleus,
 prokaryotic,
 eukaryotic,
 unicellular,
 multicellular
 Organelle

GUIDED QUESTIONS

What are cells?

What are the two main types of cells?

How do prokaryotic and eukaryotic cells differ?

Watch the video and then Think Pair Share in
your group on what you learned from it.
WHAT DO THEY HAVE IN COMMON?
WHAT ARE CELLS?

Cells are the basic unit of life.
What does that mean?
• Everything that is living
living is made up of
cells.
LIVING OR NON-LIVING?
RECAP

Living = cells
• Non-Living = no cells
HISTORY BEHING THE CELL
Robert Hooke, an English scientist, used a
microscope to observe slices of cork.
 He pointed out that the cork contained tiny
rectangular chambers that he called cells. He
believe that only plants had cells. His idea stood
firm for 200 years.

In 1835, Mathhias Scleiden, a German scientist,
used a microscope to study the parts of a plant.
He concluded that all parts of a plant are made
up of cells.
 1836, Theodor Schwann, another German
scientist, came to the conclusión that animals
also are made up of cells.

THE DISCOVERY CONTINUES…
Meantime, a Scottish scientist named Robert
Brown, had discovered an object near the center
of the cells, which is now called the nucleus.
 Rudolf Virchow, proposed that animal and plant
cellls are produced only by the división of cells
that already exist.

CELL THEORY
1.
All organisms are made up of one or
more cells
2.
Cells are the basic unit of life in
organizations
3.
All cells come from other(preexixting) cells
CELLS BACKGROUND
Cells come in different shapes
 Cells are different sizes
 There are many types of cells

Muscle Cells
Red Blood
Nerve Cells Cells
THERE ARE 2 TYPES OF CELLS:
Prokaryote
Eukaryote
Pro= before
Karyote= nucleus
Eu= true
Karyote= nucleus
Karyotic = nucleus
Cell Types

Prokaryotic

Eukaryotic

Both groups are prokaryotes (single-celled
organisms without nuclei).
Single-celled organisms have all the
characteristics of living things.
 Scientists divide organisms into six kingdoms.
All living things, including:
 Plants
 Animals
 Protists
 Fungi
 Archaea
 Bacteria

RECAP
PROKARYOTIC VS EUKARYOTIC
MINI- ASSESSMENT
 The
following slides will contain either
prokaryotic or eukaryotic cells. Number your
paper 1-10. When the cell is shown write
whether it is a prokaryotic or an eukaryotic cell.

REMEMBER:
Prokaryotic means the cell does not have a nucleus
•Eukaryotic means the cell does have a nucleus
QUESTION 1

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 2

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 3

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 4

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 5

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 6

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 7

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 8

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 9

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 10

Prokaryotic Cell
or
Eukaryotic Cell
PROKARYOTIC VS
EUKARYOTIC
 Take
out a red or green color pencil in order to
check your mastery of prokaryotic and
eukaryotic cells.
QUESTION 1

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 2

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 3

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 4

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 5

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 6

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 7

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 8

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 9

Prokaryotic Cell
or
Eukaryotic Cell
QUESTION 10

Prokaryotic Cell
or
Eukaryotic Cell
DIFFERENCE BETWEEN
EUKARYOTIC AND PROKARYOTIC
Organisms
that have
prokaryotic cells are usually
bacteria and viruses.
Organisms
that have eukaryotic
cells are animals and plants.
ORGANELLE
Parts of cell
ANIMAL CELL
CELL MEMBRANE
 Protective
outer
covering of a cell
•Regulates what goes in and out of the cell
CYTOSKELETON

Provides structure to the cell
CYTOPLASM


Gel-like mixture
in the cell
Contains cells’
organelles
RECAP

Prokaryotic Cell
or
Eukaryotic Cell
MITOCHONDRIA

Breaks down food and
water and releases
energy
GOLGI BODY

Sorts, packaged, and ships cells’ materials inside
and outside the cell
RECAP
RIBOSOME
 Makes
proteins
RECAP
ENDOPLASMIC RETICULUM
•Moves materials around in the cell
RECAP
LYSOSOME
•Digest old organelles
CENTRIOLES

Are used when cells
replicate
RECAP
NUCLEUS
 The
brain of
cell
 Contains
DNA
 Controls
activities of the
cell
RECAP
VACUOLE
 Fluid-filled
cavity inside
the cell
 Contains
digested food
and waste
materials that
are on its way
out of the cell
RECAP
THE CELLS SONG
https://www.youtube.com/watch?v=dngsFl2X3nc
 https://www.youtube.com/watch?v=-zafJKbMPA8

not
 https://www.youtube.com/watch?v=wRZthGlzEUc
