Module 2: Cell structure and Microscopy

Question 1

Role of Cytoskeleton

Answer 1

Whole cell support
Movement of cell
Aids with movement inside the cell
Changing shape of cell

Question 2

Maximum magnification and resolution for Microscopes.

Answer 2

Light- Magnification- x1500
Resolution- 200nm

Laser- Magnification- x1500
Resolution-160nm

TEM- Magnification- x200000
Resolution- 0.1 nm

SEM- Magnification- x200000
Resolution-0.1

Question 3

Difference between magnification and resolution

Answer 3

Magnification- the number of times larger the image is compared to the object.
Resolution- the ability to distinguish between two separate points.

Question 4

Advantages of Staining

Answer 4

Provides contrast
Identify organelles
Distinguish between cell types