Human body has an average of 75 trillion cells.
There are more than 75 trillion bacteria living in
and on our body. How is this possible that We
have more bacterial cells than our own cells?
Pre-video questions
1) Which organism’s cells are shown in this video?
2) How many cells have adult human?
3) Are there any ribosomes in this video?
Quadrillion = 10 15
http://tiny.cc/vsb1xy
Post-video questions
1) How many chemical reactions undergo in the cell
in 1 second?
2) Did you see antibodies in the video?
3) Did you see any fertilization processes?
Cell structure and types
Жасуша құрылысы
және түрлері
Aim:
You will compare structures of different
types of cells
-
All living organisms are
made of one or more
cells.
2 types of cells
20-100 times bigger
Prokaryotic cell
✓ Cell wall
✓ Cell membrane
✓ Cytoplasm
✓ Ribosome
✓ Genetic material (not covered with membrane)
× Nucleus
Bacteria
Eukaryotic cell
ЭУКАРИОТТЫ
ЖАСУША
✓ Organelles
✓ Cell membrane
✓ Cytoplasm
✓ Genetic material in
nucleus
✓ Cell wall (in plants, fungi,
animals, protista)
Structure of eukaryotic cell
Cell membrane covers the cell.
- controls transport of materials in or out of the cell.
- Plant, fungi and some protista cells have cell wall
-Cytoplasm includes
liquid part and cell
organelles.
Every organelle has its own function.
-Mitochondria: produce
energy for the cell activities;
-Ribosomes: produce protein;
-Endoplasmic reticulum: makes and transports
proteins and lipids within the cell;
-Golgi apparatus: receives,
modifies and packs materials
produced by endopasmic
reticulum; then transport to
cytoplasm or outside of the
cell;
-Lysosomes: small organelles
with digestive enzymes, makes
intracellular digestion;
7-Chloroplast: plant
organelle which makes
photosynthesis;
8-Vacuole: store materials
Activity
You are the mayor of the city called Cellorda (Cell Orda).
Tell us about your city and citizens!
1. Who lives in Cell Orda?
2. Some bad bacteria want to attack Cell Orda. Soldiers
protect the City. Who are they?
3. Now you have problems with energy supply. Who will
find energy needed for Cell Orda
4. Work in groups. Show your city’s life in action with your
group.
Questions
1. Active cells or cells which need lots of energy have more
mitochondria in them. Write 3 human cells with large
numbers of mitochondria in them
2. Chloroplast is a kind of plastid, some plant cells have
chloroplasts, some do not. Guess which plant cells do not
have chloroplast.
DOMINO