Interpret cell structures and molecular evidence to distinguish Archaea and Bacteria as prokaryotes from each other and from Eukarya in Cambridge A Level Biology questions.
Compare the characteristics of members of the domain Archaea with the characteristics of members of the domain Bacteria.
Include similarities and differences.
any four from:
Marking guidance:
max three:
1 both are prokaryotes
or
both have no, nucleus / (double) membrane-bound organelles ;
2 both have circular DNA ;
3 both have 70S ribosomes ;
4 both reproduce by, binary fission / budding / fragmentation ;
max three:
5 bacteria cell wall made of peptidoglycan whereas Archaea cell wall does not have peptidoglycan ;
6 bacteria cell membrane has ester-linked lipids whereas Archaea cell membrane has ether-linked lipids ;
7 have different ribosomal RNA ;
8 Bacteria do not have (DNA associated with) histones whereas Archaea do have (DNA associated with) histones ;
9 Bacteria form spores whereas Archaea do not form spores ;