unit 2, prokaryotic

Question 1

Characteristics of prokaryotic cells cell wall

Answer 1

Made of murein a polymer made of polysaccharides and polypeptides and protects against mechanical damage and lysis via osmosis

Question 2

Capsule characteristics

Answer 2

made of slime
protects from hosts immune system
allows to stick to other bacteria
prevents cell from drying out

Question 3

Cell surface membrane characteristics

Answer 3

made of lipids
pores and channels for movement in and out of cell

Question 4

Ribosomes

Answer 4

smaller than eukaryotic cells 70s ribosomes

Question 5

Glycogen granules and oil droplets

Answer 5

food store for cell

Question 6

Flagellum

Answer 6

multiple called flagella
propels cell in circular motion

Question 7

Plasmid

Answer 7

small loop of dan
reproduces by itself leading to antibiotic resistance
vector in genetic engineering

Question 8

Pili

Answer 8

sense surroundings

Question 9

Dna

Answer 9

not associated with proteins
circular strand of dna

Question 10

Name stuff prokaryotic have but eukaryotic dont name 3

Answer 10

flagellum
pili
dna is free floating
capsule
plasmids

Question 11

How does prokaryotic cells reproduce

Answer 11

binery fission

Question 12

Stages of binary fission

Answer 12

1. plasmids and circular dna replicate
   circular only once and plasmids multiple
2. cell gets bigger and dna moves to opposite sides
3. cytoplasm begins to divide
   4 . fully divides and forms two new daughter cells number of plasmids may vary