Cells And Microscope Flashcards
Cell membrane
Allows substances to pass in and out of the cell.
Cyptoplasm
Watery fluid that gives support to the cell
Nucleus
Controls the cell’s activity
Vacuole
(Larger and permanent in plants) storage of food, water and waste
Cell wall
(Only in plant cells) gives strength to the cell
Chloroplast
(Only in plant cells) contains chlorophyll to help make food
Base
Keeps the microscope steady
Stage and stage clips
Holds the slide in place
Light source
A built in lightbulb or mirror that lights up the specimen
Diaphragm
Controls the amount of light passing through the specimen
Objective lens
Magnifies the specimen by different factors (x4, x10, x40)
Eyepiece lens
Magnifies the specimen usually by the factor of 10(x10)
Coarse focus wheel
Brings the image into rough focus
Fine focus wheel
Brings image into sharp focus
Electron microscope
Used to study in more detail
A beam of electrons are passed through the specimen
Micrograph
An image formed when using an electron microscope
Mitochondria and ribosomes
Can be seen with an electron microscope, but cannot be seen with a light microscope
Organelle
Structure in a cell that carries out a particular role
Cell
Made up of organelles, different cells do different jobs
Tissue
Groups of cells that work together e.g. blood is made of red and white blood cells, plasma and platelets
Organ
Group of tissues that work together
System
Group of organs that work together
Organism
An individual that has many systems that work together
A ribosome
an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell.
