Cells
por Hawra Albalooshi
1. All cells have several basic features in common :
1.1. Plasma membrane – Outer selective barrier
1.2. Cytosol - semifluid substance in which organelles are suspended
1.3. Chromosomes - carry genes in the form of DNA
1.4. Ribosomes - make proteins
2. Types of Cells :
2.1. Prokaryotic :
2.1.1. Bacteria
2.1.2. Archaea
2.2. Eukaryotic :
2.2.1. Protists (unicellular eukaryotes)
2.2.2. Fungi
2.2.3. Plants
2.2.4. Animals and humans
3. categories
3.1. Prokaryotes :
3.1.1. No Nucleus
3.1.2. No membrane bounded structures
3.1.3. Prokaryotic cells are smaller than eukaryotic cells
3.2. Eukaryotes :
3.2.1. Nucleus
3.2.2. DNA in Nucleus
3.2.3. Membrane-bound organelles
4. Plants and animal cells have :
4.1. Plasma membrane : is the boundary that separates the living cell from its surroundings.
4.2. Nucleus : Information Center
4.2.1. Ribosomes : protein factories
4.3. Endomembrane system : Regulates protein traffic and performs metabolic functions in the cell .
4.3.1. Mitochondria : Chemical Energy Conversion
4.3.1.1. Peroxisomes, cytoskeleton
4.3.1.1.1. Cell wall (only in plants)