Prokaryotic cells

Question 1

features of a prokaryote

Answer 1

1. wide range of habitats
2. single cell
3. diversity of form
4. can do horizontal gene transfer

Question 2

organelles of a prokaryote

Answer 2

1. cell wall
2. ribosomes
3. cytoskeleton
4. fimbriae (movement)
5. Nucleiod (no membrane)
6. plasma membrane
7. Gylcocalyx (caspule or slime)
8. flagella (adhesion)
9. Pili (conjugation)

Question 3

features of a bacterial cell wall

Answer 3

1. rigid: has capsule of polysaccarides to protect it from the environment
2. prevents phagocytosis (being eaten)
3. has flagella, fimbrae and pilii: movement attachment and conjugation

Question 4

what is the job of the mitochondria?

Answer 4

1. respiration
2. photosynthesis

Question 5

What is the length of prokaryotic cells?

Answer 5

100 nanometer 10(-9)m -10 micrometer 10(-6)m

Question 6

What is and the job of the Fimbrae?

Answer 6

1. They are filaments structures made of proteins that extend from the cell wall
2. They enable bacteria to attach to other bacteria

Question 7

What is and the job of pili?

Answer 7

1. Filaments structure made of protein attached to the cell wall
2. Longer than fimbrae and are responsible for bacterial conjugation