Wk 1 - Types of cells

Question 1

What do all cells have in common?

Answer 1

• Cytoplasmic (cell) membrane
• Cytoplasm
• Ribosomes
• Cell wall (some)

Question 2

What differentiates a prokaryote from a eukaryote?

Answer 2

• They do not have any membrane bound organelles. It only has a membrane surrounding the cell and a cell wall outside of that
• No nucleus bit it has a nucleoid where the DNA clumps around the centre though it is not surrounded by an envelope

Question 3

What is the difference between a Eukaryote and Prokaryote DNA?

Answer 3

Prokaryotes:

• Generally singular circular chromosomes that aggregates to form the nucleoid region
• May also have plasmids (extrachromosomal DNA) that confer special properties
• Small compact

Question 4

What are the two types of microbes that exist and give examples?

Answer 4

• Cellular (e.g. Prokaryotes - Bacteria)

- Acellular (e.g. viruses)