structutre of prokaryotic cells and viruses

Question 1

what is the structure of a prokayryotic cell

Answer 1

always have
cell surface membrane
cell wall- contains meurin a glycoprotein
cytoplasm
small ribosomes
circular DNA - free in cytoplasm, not associated with proteins

sometimes have
capsule
plasmids - small rings of DNA
flagella

Question 2

compare eukaryotic and prokaryotic cells

Answer 2

e has membrane bound organelles, p has no memnbrane bound organelles
e has nucleus containing DNA, p has no nucleus DNA free in cytoplasm
e has long linear DNA assosciated with proteins, p has short circular DNA not associated with proteins
e has larger roibosomes 80s, p has smaller ribosomes 70s
e cell walls contain cellulose or chitin, p cell walls contain meurin

Question 3

what is the structure of a virus

Answer 3

acellular and non living
nucleic acid surrounded by capsid
attachment proteins allow attachment to specific host cells
no cytoplasm, cell wall, ribosomes, cell membrane etc
some surrounded by lipid envelope