Cell Organization

Question 0

What are the different types of microscopes?

Answer 0

Light microscopy, electron microscopy, TEM ( transmission EM), Florescence microscopy

Question 1

What does refractive index allow you to visualize?

Answer 1

Thickness

Question 2

What are the three types of cellular macromolecules?

Answer 2

1. Nucleic acids
2. Proteins
3. Lipids

Question 3

What are the advantages of compartmentalization and organization in a cell?

Answer 3

Provide distinct microenvironment sequester harmful molecules concentrate specific molecules
enable regulation

Question 4

What is the purpose of using membranes?

Answer 4

Membranes good structure to the cell, fluidity within the plane, allows regulated permeability

Question 5

What does the composition of cellular membranes involve?

Answer 5

1. Phosphoglycerides
2. Sphingolipids
3. Cholesterol (animals)

Question 6

What is the role of cholesterol in animal membranes?

Answer 6

Cholesterol increases membrane stiffness and fluidity. It has a rigid steroid ring.