3.6) Prokaryotic cells and viruses

Question 1

What are the two types of cells?

Answer 1

• Eukaryotic
• Prokaryotic

Question 2

Key characteristics of Eukaryotic cells

Answer 2

• Larger
• Nucleus bounded by nuclear envelope

Question 3

Key characteristics of Prokaryotic cells

Answer 3

• Smaller
• No nucleus or no nuclear envelope

Question 4

In a bacterial cell, what is the cell wall made of?

Answer 4

Murein ( a polymer of polysaccharides and peptides)

Question 5

In a bacterial cell, what is the function of the cell wall?

Answer 5

To protect bacterial cells by secreting a capsule of mucilaginous slime around the cell wall

Question 6

In a bacterial cell, what is the function of the cell surface membrane?

Answer 6

A selectively permeable layer that controls the entry and exit of chemicals

Question 7

In a bacterial cell, what does the cytoplasm contain?

Answer 7

Ribosomes and nutrients

Question 8

In a bacterial cell, what form of DNA is there?

Answer 8

Circular DNA

Question 9

In a bacterial cell, what is the structure of plasmids?

Answer 9

Small circular strands

Question 10

In comparison, what does prokaryotic cells