2. Prokaryotic Cells

Question 1

describe the process of binary fission?

Answer 1

1. Circular DNA and plasmids replicate, DNA once, plasmids a few
2. As the cell gets bigger the DNA loops more to the other poles of the cell
3. Cytoplasm begins to divide and new cell walls begin to form
4. Cytoplasm begins to divide and two new daughter cells are produced

Question 2

each new daughter cell has one copy of ——- but can have a variable number of ———- copies

Answer 2

1. Circular DNA
2. plasmid

Question 3

list the features of a bacteria cell

Answer 3

1. flagellum- a hair like structure that rotates
2. ribosomes- smaller than those in eukaryotic
3. cell membrane- made of lipids
4. cell wall- supports cell, made from a polymer called murein
5. Capsule- made from secreted slime, helping protect bacteria from an immune system attack
6. Plasmids- rings of DNA