Zusammenfassung der Ressource
B2.1
- Cells And Specialised Cells
- Mitochondria; Provides energy for cell.
- Cytoplasm ; where all chemical reaction take place
- Vacuole; Contain cell sap, mentains plants
shape
- Ribosomes; Where protein sythessis takes place
- Yeast And Bacteria Cells
- Bacteria Cell
- Flagellum (not always present)
- Plasmid DNA; comes in small loops and
carried extra information
- Chromosomal DNA; giant loop of DNA
containing most genetic material.
- Prokaryotic Cell; A cell without a nucleus (
bacterial cell )
- Eukaryotic Cell; A cell with a nucleus ( yeast, animal etc.)
- Diffusion
- Diffusion Is Particles Moving From High Concentration To
Low Concentration As They Spread Out
- Happens when particles are free to
move
- This is true in gases and for particles dissolved in
solutions.
- Factors that effect rate of diffusion are surface are,
concentration volume and temperature
- Photosythessis
- Process where plant makes their own food
- During photosynthesis: Light energy is absorbed by chlorophyll, a green substance found in
chloroplasts in some plant cells and algae Absorbed light energy is used to convert carbon
dioxide (from the air) and water (from the soil) into a sugar called glucose Oxygen is released as a
by-product