Cells And Microscopes Flashcards
What does the cell membrane do?
Allows substances to pass in and out of the cell
What allows substances to pass through the cell?
Cell membrane
What is cytoplasm?
Watery fluid that gives support to the cell
What is a watery fluid that help the cell called?
Cytoplasm
What is a nucleus?
It controls the cell activities
What controls the cells activity?
Nucleus
What is a vacuole?
It stores food, water and wastes (larger and permanent in plant cells
What stores food,water and waste in the cell
Vacuole
What is a cell wall?
It gives strength to the cell (only in plant cells)
What gives strength to the cell?
Cell wall
What is a chloroplast?
It contains chlorophyll to help make food (only in plant cell)
What is a microscope base?
It keeps the microscope stable
What are the clips and stage on a microscope
They hold the slide in place
What does the light do?
Its built in and shines light onto the slide so you can see it better
What is a diaphragm?
It controls the amount of light passing through the specimens
What is a objective lens
It magnifies the specimen by different factors (x4 x10 x40)
What is an eye piece lens for?
It magnifies the specimen, usually by a factor of 10 (x10)
What is coarse focus wheel?
It brings the image to a rough focus
What is a fine focus wheel?
It brings the image into a sharp focus
Electron microscope
Used to study things in more detail a beam of electrons is passed through a specimen
Mircrograph
An image formed when using an electron microscope
Mitochondria and ribosomes
Can be seen with an electron microscope but not with a light microscope
Organelle
Structure in a cell that carries put a particular role
Cell
Made up of organelles, different cells do different jobs
