Cell Ultrastructure

Question 1

Name the Function of the Plasma Membrane

Answer 1

Surrounds the cell to provide a physical barrier to control exit and entry of substances, and allows communication between cells

Question 2

Name the Function of a Lysosome

Answer 2

They digest excess or worn out organelles, food particles and engulf viruses/ bacteria

Question 3

What type of cells can Mitochondria be found in?

Answer 3

Eukaryotes or Animal and plant cells

Question 4

In prokaryotes what is the cell wall made up of?

Answer 4

Peptidoglycan

Question 5

How do Prokaryotes reproduce?

Answer 5

They reproduce through Binary fission

Question 6

What’s the difference between the DNA in Prokaryotes and DNA in Eukaryotes?

Answer 6

Prokaryotes - DNA is naked, Circular, and usually no introns

Eukaryotes - DNA bound to protein, Linear, and usually has introns

Question 7

What is the average size of Prokaryotes?

Answer 7

0.5-5 micrometer

Question 8

What’s the Average size of a Eukaryotes?

Answer 8

10-100 micrometers

Question 9

How does yeast reproduce?

Answer 9

Through Budding

Question 10

What are the three types of fibre found in the Cytoskeleton?

Answer 10

Microtubules
Microfilaments
And intermediate filament

Question 11

What are the main functions of the Cytoskeleton?

Answer 11

Provides scaffolding for the cell
Helps with movement of the cell
Also helps move the chromosomes in anaphase

Question 12

How big are the Ribosomes in a Prokaryotic cell?

Answer 12

70s or approx 10-20nm

Question 13

How big are ribosomes in a eukaryotic cell?

Answer 13

80s or approx 22nm