Three Domains Flashcards
1
Q
What is Bacteria (prokaryotes)
A
- prokaryotic
- linear chromosomes
- cell membrane - glycerol - ester lipids
- larger 80S ribosomes
- cell wall - sometimes present - without peptidolycan
- Histones
- Introns
2
Q
What is Archea?
A
- prokaryotic cell
- circular chromsomes
- glycerol - ester lipids
- 70S Ribosomes - smaller
- cell wall always present - without peptidolycan
- Has Histones
- sometimes introns
3
Q
What is Eukarya?
A
- prokaryotic cell
- circular chromsomes
- glycerol - ester lipids
- 70S Ribosomes
- cell wall always present - with peptidolycan
- No histones
- rarely introns
4
Q
What are the similarities and differences?
A
- Bacteria, archaea, and eukarya are three domains of life
- bacteria and archaea are both prokaryotes, meaning they lack a nucleus,
- while eukarya are eukaryotes with a nucleus.
- bacteria and archaea have simpler cell structures compared to eukarya.
- Bacteria and archaea are similar in size
5
Q
Where are the main differences between Archaea and Bacteria
A
- Membrane lipids
- Ribosomal RNA
- Cell wall composition
