2.6 Prokaryotic and Eukaryotic Cells

Question 1

What are prokaryotic cells also known as? (1 mark)

Answer 1

Extremophiles

Question 2

Are prokaryotic cells unicellular or multicellular? (1 mark)

Answer 2

Unicellular

Question 3

Describe the structure of DNA in prokaryotic cells. (3 marks)

Answer 3

Only generally have one molecule of DNA, called the nucleoid region, it is free in the cytoplasm.
They also sometimes have extra chromosomal DNA, they are circular and called plasmids.

Question 4

What is the difference between ribosomes in eukaryotic and prokaryotic cells? (2 marks)

Answer 4

In prokaryotic cells they are smaller.
P- 70S
E- 80S

Question 5

What are the cell walls of prokaryotes made of, what is it also known as? (2 marks)

Answer 5

Peptidoglycan
Murein

Question 6

Where does the energy that rotates the filament that forms a flagella come from, in a prokaryotic cell? (1 mark)

Answer 6

Chemiosmosis

Question 7

Do prokaryotic cells have a nucleus? (1 mark)

Answer 7

No

Question 8

Compare norms prokaryotic and eukaryotic cells reproduce. (2 marks)

Answer 8

P- binary fission
E- Meiosis or mitosis