microscopy Flashcards
What is an organelle?
Specialised structures found within a living cell.
Define resolution in microscopy.
The ability to distinguish between objects that are close together.
What is the function of the nucleus?
An organelle found inside a cell which contains genetic information.
Where does aerobic respiration take place?
In the mitochondria.
What is the role of chloroplasts?
A plant organelle where the stages of photosynthesis take place.
What was unknown before the invention of microscopes?
Cells, sperm, bacteria, and other micro-organisms.
What is a microscope?
An instrument that is used to magnify objects that are too small to see with the naked eye.
What can be observed using high-power microscopes?
Cell organelles.
What is the maximum magnification of a light microscope?
× 1500.
What is the maximum resolution of a light microscope?
200 nm.
True or False: Light microscopes can observe sub-cellular structures.
True.
What is the purpose of histopathologists in hospitals?
To analyze tissue samples using microscopy.
What type of light is used in light microscopes?
Visible light.
When were light microscopes first developed?
In the 16th century.
What do electron microscopes use to visualize specimens?
A beam of electrons in a vacuum.
