Final answer:
A compound microscope consists of parts such as ocular lenses, objective lenses, stage, condenser, coarse and fine focusing knobs, each with its distinct function. The most appropriate microscope for studying internal cell structures is typically a compound light microscope or an electron microscope for greater detail.
Step-by-step explanation:
Understanding the various parts of a microscope is essential in biology, as it allows students and scientists to examine specimens at a cellular or molecular level. Here is a brief description of some major parts of a typical compound microscope:
- The ocular lenses (also called eyepieces) are where you look through to see the magnified image of the specimen. They usually provide magnification of 10x.
- The objective lenses are located on a rotating nosepiece and range in magnification power. They are usually found in magnifications of 4x (scanning), 10x (low power), 40x (high power), and sometimes 100x (oil immersion).
- The stage is where the specimen is placed for viewing. Mechanical stage knobs are used to adjust the slide's position without raising or lowering the stage.
- The condenser focuses light onto the specimen, and it often includes an iris diaphragm to control the amount of light reaching the specimen.
- The coarse and fine focusing knobs adjust the focus of the microscope. The coarse knob is for general focus, while the fine knob is for detailed, precision focusing.
The right microscope for studying the structures within cells would be a compound light microscope for typical cell observation or an electron microscope for more detailed structures. The three basic parts of cell theory are: all living things are composed of one or more cells; the cell is the basic unit of life; and all cells arise from pre-existing, living cells.