Prokaryotic Cells

Question 1

Cell wall

Answer 1

Made of peptidoglycan. Gives strength to the cell. (Eukaryotic plant cell walls are made of cellulose)

Question 2

Capsule

Answer 2

Outside slimy layer on some prokaryotes. Protects and prevents dehydration.

Question 3

Flagellum

Answer 3

Rotate to move cell. NB Eukaryotic sperm cells have flagellum.

Question 4

Ribosomes

Answer 4

Site of translation in protein synthesis, No membrane. 70S. NB Eukarytoic ribosomes are 80S.

Question 5

dna in prokaryotes

Answer 5

Not in a nucleus/ not membrane bound. Double stranded circular structure in one loop, no histones.

Question 6

Plasmid

Answer 6

Small, circular loop of DNA

Question 7

Pili

Answer 7

Thin protein tubes. Attach prokaryotes to other cells and surfaces (involved in sexual reproduction)

Question 8

Mesosome

Answer 8

Infolding of the cell membrane. Possible site of respiration, photosynthesis etc or due to damage when studying prokarytoic cells.