CELLS (PROKARYOTIC CELLS)

Question 1

Are prokaryotic or eukaryotic cells bigger

Answer 1

Eukaryotic cells are bigger

Question 2

How are prokaryotic cells different from eukaryotic ones

Answer 2

Prokaryotic cells have:
No membrane bound organelle
No nucleus - instead they have singular circular DNA that is free in the cytoplasm and not associated with histone proteins
A cell wall that contains murein

Question 3

What is always present in bacteria cells

Answer 3

Cell surface membrane
Cell wall
Ribosomes
Circular DNA

Question 4

What features are sometimes present in bacteria cells

Answer 4

Slime Capsule around cell for protection
Flagellum for motion
One or more plasmids
Infolding of cell membrane to make ATP

Question 5

What are 3 features common to all viruses

Answer 5

Capsid
Protein molecules
Nucleic acid

Question 6

Give 3 features that is specific to HIV

Answer 6

Lipid envelope
Reverse transcriptase enzyme
Matrix

Question 7

Describe process of binary fission in bacteria

Answer 7

Circular DNA is replicated
Plasmids are replicated
Cytoplasm divides to produce 2 daughter cells