Download The life of cells

The life
of cells
Cells
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All living organisms are made up of cells
Unicellular:
Multicellular:
5000000000000000 cells
Size: 10 um
Weight: 1 ng
The largest cell:
The smallest unit of life
– metabolism
– reproduction
Prokaryotic vs eukaryotic cell
Eukaryotic cell
1. What is the function of cytoskeleton?
2. What is the function of mitochondrion?
3. How long is the DNA located in the
nucleus?
4. Where can mRNA be found?
5. What is the function of ribosomes?
6. What is the function of smooth
endoplasmic reticulum?
7. What is the function of Golgi apparatus?
8. Mhat sort of enzymes can be found in
the lysosomes?
Cell organelles
• Cell membrane
– Function:
– Structure:
• Proteins:
• Carbohydrates:
– Material transport from / into the cell
1) through the membrane
- A:
- B:
2) with vesicles
- Endocytosis:
- Exocytosis:
• Cytoplasm
– Fluid or jelly-like substance
– Containing water, ions, dissolved nutrients
• Cytoskeleton
– Made up of
proteins
• Microtubules:
• Microfilaments:
• Nucleus
– Structure:
– Function:
Eukaryotic cell
• Ribosome:
– Function:
• Endoplasmic reticulum (ER)
– Rough ER:
– Smooth ER:
• Golgi complex
• Mitochondrion:
– Function:
– Double membrane, DNA, ribosomes
– Biological oxidation:
• Organic material
-> CO2 + H
• CO2:
• H:
• Structures for
locomotion
– Flagellum
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• E.g.:
– Cilium
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• E.g.:
Bronchial cilia
Fallopian tube