Topic 3 - Lesson 2

Question 1

Compare prokaryotic and eukaryotic cells

Answer 1

They both:
1. Contain DNA
2. Have ribosomes
3. Have cytoplasm
4. Have a cell membrane

Question 2

Contrast prokaryotic and eukaryotic cells

Answer 2

Eukaryotic cells are more complex, larger, have a nucleus, membrane bound organelles
Prokaryotic Cells are less complex, smaller, do not have a nucleus and do not have membrane bound organelles

Question 3

Cytoplasm

Answer 3

It is the site of chemical reactions, it contains ribosomes and has no membrane bound organelles

Question 4

Flagellum

Answer 4

It rotates for movement and isn’t always present

Question 5

Nucleoid

Answer 5

There is no membrane bound nucleus and no protein histones, there is DNA free floating in cytoplasm (circular DNA -one long coiled strand)

Question 6

Plasma Membrane

Answer 6

It has a phospholipid bilayer and it composed of phospholipids and proteins

Question 6

Cell Wall

Answer 6

It supports the cell and prevents the changing shape of the cell it is made of peptidoglycan(murine), murine is a glycoprotein

Question 7

Pili

Answer 7

It allows adherence and the transfer of genetic material between prokaryotes