Zusammenfassung der Ressource
National 5 Biology - Cell Biology
- Cell Structure
- Cytoplasm
- Site of chemical reaction
- Nucleus
- Controls the cells activity
- Ribosomes
- The site of protein synthesis
- Mitochondria
- The site of aerobic repiration
- Cell Membrane
- Controls what enters and exits the cell
- Cell Wall
- Gives Shape & Structure
- Chloroplasts
- Site of photosynthesis
- Vacuole
- Contains cell sap
- Plasmids
- Extra DNA
- Transport Across The Membrane
- Diffusion
- Diffusion is the movement of molecules from a region of high
concentration inside the cell to a region of low concentration
outside traveling down a concentration, this is a passive process
- Active Transport
- Active transport is the movement of ions from a region of low
concentration inside the cell the region of high concentration
outside the cell, moving against the concentration gradient,
this process requires ATP energy
- Osmosis
- Osmosis is the movement of water molecules form a region of
high concentration inside the cell to a region of low
concentration outside the cell, travelling down a concentration
gradient, this is a passive process