Prokaryotic Cells

Question 1

5 kingdoms

Answer 1

Animal
Plant
Fungi
Protist
Bacteria (prokaryotic)

Question 2

Gen prokaryotes

Answer 2

NO nucleus
NO membrane bound organelles (ribosomes have no membrane)
Smaller and simpler
- <5 microM in length
Internal struct. can only be seen under an electron microscope
Chromosomes not in nucleus but in NUCLEOLUS
- circular NOT linear
- nothing to do with proteins

Question 3

Cell wall

Answer 3

Always present
Made of peptidoglycan (murein) NOT cellulose
Maintains shape and controls exchange if materials
Murein in bac. is unique

Question 4

Capsule/ slim layer: capsuole*

Answer 4

In SOME prokaryotes
gelatinous layer prevents cell dying out

Question 5

Cell membrane

Answer 5

SELECTIVELY PERMEABLE
In all cells
Contains less phospholipid than euk. Membrane

Question 6

Plasmids

Answer 6

Bonus DNA
Small
Circular
DOUBLE STRANDED
Found in cytoplasm
Passed around bacteria in conjugation (exchange of genes)
Resistance to antibiotics is transferred (conjugation- asexual)

Question 7

Flagellum

Answer 7

1+
Move cell
Made of protein tubular have a dif INTERNAL structure to flagella in euk.

Question 8

Ribosomes

Answer 8

Free in cytoplasm
Smaller than euk.
Antibiotics inhibit protein synthesis on bac. ribosomes so kill cell