quiz cards for science Flashcards
TEST AND STUDY
The lens at the top you can look through(usually 10x or 15x power.
Eyepiece lens
Connects the eyepiece to the objective lenses.
Tube
Supports the tube and connects it to the base.
Arm
The bottom of the microscope, used for support
Base
Either a mirror or illuminator. Projected up toward the specimen being observed.
Light source
The flat platform where you place your slides.
Stage
Holds 2 or more objective lenses and can be rotated to easily to change power.
Revolving nosepiece
Typically 4x, 10x, 40x and 100x powers. The greatest power is the longest.
Objective lenses
The rotating disk under the stage. It has different sized holes used to intensify and size the cone of light projected upward toward the slide.
Diaphragm
Moveable clips used to hold the microscope slide in place and so it won’t move.
Stage clips
Moves the nosepiece in large increments and brings the specimen into approximate focus.
Course adjustment
Moves the nosepiece more slowly for precise final focusing.
Fine adjustment
What is the basic unit of structure and function in all living things.
The cell
Located outside of the cell membrane. A ridged thicker structure which protects the cell. gives plant cells their shape
Cell wall
The outer larger layer covering of the cell it is double layered.
Cell membrane