Cell Ultrastructure

Question 1

Which microscope has a better resolution: an electron microscope or a light microscope? Why?

Answer 1

An electron microscope- has a wavelength of 0.004nm

Question 2

List 3 properties of the phospholipid bilayer

Answer 2

Amphipathic
Impermeable to hydrophilic molecules
Selective permeability via proteins

Question 3

What is the cell coat (glycocalyx) made up of?

Answer 3

Oligosaccharides

Polysaccharides

Question 4

What is the function of the endoplasmic reticulum?

Answer 4

Protein synthesis and packaging

Question 5

What is the difference between a RER and a SER?

Answer 5

RER has ribosomes on the outer edge

Question 6

What is the function of the golgi apparatus?

Answer 6

Package proteins

Question 7

Where are lysosomes made?

Answer 7

The golgi body

Question 8

What is the function of a lysosome?

Answer 8

Digest waste material

Question 9

What name is given to the lumen of a mitochondria?

Answer 9

Matrix

Question 10

What is the main function of the mitochondria?

Answer 10

ATP production

Question 11

What is a microtubule?

Answer 11

Long, hollow cylinders made of the protein tubulin

Question 12

What is the ‘limit of resolution’?

Answer 12

The minimum distance at which two objects can be distinguished