Cells+Microscope Flashcards
Cell Membrane
Allows substances to pass in and out of the cell
Cytoplasm
Watery fluid that gives support to the cell
Nucleus
Controls the cells activities
Vacuole
(Largest 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
A built in light bulb 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 a factor of 10 (x10)
Coarse focus wheel
Brings the image into rough 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 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 tissue that work together
System
Groups of organs that work together
Organism
An individual that many systems that work together
