Light Microscopes Flashcards
How far can the human eye distinguish things?
0.1mm apart - about the size of a human egg cell
What do biologists want to study?
Specimens that are much smaller - such as bacteria and red blood cells
What are eyes limited to?
Magnification and resolution
What do you have to do in order to look at biology more closely?
Increase our maximum magnification and resolution
What do different microscopes have?
They have different magnification and resolution
What does magnification describe?
How many times bigger an image gets when it is put under the microscope
What do the more powerful microscopes have?
Higher magnification
What is different to resolution?
Magnification
What does resolution describe?
How much fine detail we can see in the image
What is resolution?
The smallest distance that two objects can be apart whilst still appearing as two objects
Magnification is how many…
Times larger an image appears
What is the first and most common type of microscope?
Light microscope
What is sent from a light source through a specimen where the image of which is magnified by glass lenses?
Light
Why are light microscopes the most common type of microscopes?
- They are cheap to build and buy 2. They are easy to use 3. They can be used to study living cells - which not all microscopes have
What type of microscope shows a 2D image of living cells?
Light microscopes
