Cells And Microscopes Flashcards
Cell membrane
Allows substances to pass in and out of the cell
Cyctoplasm
Watery fluid that gives support to the cell
Nucleus
Controls the cells activities
Vacuole
(Larger and permanent in plants) storage of food, water, wastes
Cell wall
(Only in plant cells) gives strength to the cell
Chloroplasts
(Only in plant cell) contains chlorophyll to help make food
Base
Keeps the microscope stable
Stage and stage clips
Holds the slide in place
Light source
Built in light bulb or mirror that lights up the specimen
Diaphgragm
Controls the amount of light passing through the specimen
Objectivenlens
Magnifies the specimen by different factors (x4, x10, x40)
Eyepiece lens
Magnifies the specimen usually by a factor of 10 (x10)
Coarse focus wheel
Brings the image into focus
Fine focus wheel
Brings the image into sharp focus
Electron microscope
Used to study things in more detail. A beam of electrons is passed through a 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 the 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 up of red and white blood cells, plasma and platelets
Organ
Group of tissue that work together
System
Group of organs that work together
Organism
An individual that has many systems that work together
