Zusammenfassung der Ressource
Section A, Chapter 1 Biology IGCSE
- Plants
- Are multicellular
- They have chloroplasts
- Their cells have cell walls, made of cellulose
- Plants store carbohydrates as
sucrose or starch.
- Animals
- Multicellular
- Don't have chloroplast so they can't photosynthesise
- Most have some kind of nervous
coordination
- Move from one place to another
- store carbohydrates as glycogen
- Fungi
- Can be single celled
- Some have a body called mycelium
Anmerkungen:
- Their body mycelium is made up of hyphae, thread like structures containing lots of nuclei
- Can't Photosynthesise
- Feed by saprotrophic nutrition
Anmerkungen:
- Meaning they secrete extracellular enzymes which digest food on the outside of the cell and absorb nutrients
- Store carbohydrates as glycogen
- Protoctists
- single-celled and microscopic
- some have chloroplasts
- Bacteria
- single-celled and microscopic
- don't have a nucleus
- have a circular choromsome of DNA
- Most bacteria feed offf other organisms
- Virus
- very small, smaller than bacteria
- Only reproduce in living cells
Anmerkungen:
- The fact that they can do this makes them PARASITES
- infect all other types of organisms