B4 The Processes of Life
A mindmap I created for revision on B4 with the help of a OCR essentials revision guide
- Created by: esme davies
- Created on: 10-12-12 18:02
View mindmap
- B4 The Processes of Life
- Cells
- cells contain DNA and organelles
- Animal cells- cytoplasm, mitochondria, nucleus, cell membrane
- Plant Cells- cell wall, permanent vacuole, chloroplasts and ALL FEATURES OF ANIMAL CELL
- Microbila cells- eg baceria, yeast,- cell wall (protein) and DNA
- cells contain DNA and organelles
- Enzymes- molecules, speed up chem reactions in cells. temperature
- LOCK AND KEY MODEL-active site/ molecule fits into enzyme for reaction
- Respiration- release of energy Aerobic/ Anaerobic
- Photosynthesis
- temperature, light, co2
- oxygen waste product
- DIFFUSION- movement HIGH to LOW oxygen, co2 dissolved food
- ACTIVE TRANSPORT (OPPOSITE)- movement of substance low to high concentration (energy from respiration needed)
- OSMOSIS- water- dilute to concentrated solution, partially permeable membrane, dilutes concentrated solution, allows water M through but not solute M (too large)
- Cells
Comments
No comments have yet been made