1
Q
Cell theory
A
All living organisms are made up of one or more cells and new cells come from pre-existing ones
2
Q
Two types of cells
A
- prokaryotes
- eukaryotes
3
Q
Eukaryotes characteristics
A
- make up plants, animals, fungi and Protista
- has membrane bound complex organelles
- genetic Material is membrane bound and linear and divided into chromosomes
- reproduce sexually and asexually
- protein synthesis in protoplasm
- ribosome are 60S and 40S
- movement via cilia or flagellum made of cytoskeleton
- cell wall made of cellulose
4
Q
Prokaryotes characteristics
A
- make up bacteria ( peptidoglycan cell wall ) and archaebacteria
- smaller than eukaryotes
- no membrane bound organelles
- genetic material not nucleated and single king continuous circular piece of DNA found in dense region in cytoplasm called nucleoid
- protein synthesis in cytoplasm
- movement via flagellum made of flagellin
- reproduces asexually
- has capsule ( protection ) and cell wall ( prevent excess uptake or water )
5
Q
Diff between plant and animal cell
A
- cell wall and chlorophyll in plant
- vacuole in plant
- lysosome and centrioles In animal only
- plant is autotrophic
6
Q
Diff between eukaryotes and prokaryotes
A
- size
- site of protein synthesis
- components of cell wall
- components of flagellum
- organelles and nucleus
- structure of genetic material
- pro has small ribosomes
- method of reproduction
7
Q
Similarities of all living cells
A
- cytosol
- plasma membrane
- ribosomes
- genetic instructions along DNA
