Cells And Microscopes Flashcards
Cell membrane
Allow substances to pass in and out of the cell
Cytoplasm
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 wastes
Cell wall
(Only in plant and cells) gives strengths to the cell
Chloroplasts
(Only in plant cell) contains chlorophyll to help make food
Base on microscope
Keeps the microscope steady
Stage and stage clips
Holds the slides in place
Light sorce on a microscope
A built in light or light bulb or mirror that lights up the specimen
Diaphram
Controls the amount of light passing through the specimen
Objective lens
Magnifies the specimen by different factors (x4 x 10 x 40)
Eyepiece lens
Magnifies the specimen, usually by a factor of 10 (x10)
Coarse focus wheel
Brings the image to 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 am 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
Cells
Made up of organelles, different cells do different jobs
Tissue
Groups of cells that work together e.g blood is made from 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
