Cell Organelles and Microscopy
This page provides a comprehensive overview of cell structures and microscopy techniques essential for GCSE cells and organelle functions. It includes detailed diagrams of both animal and plant cells, highlighting key organelles and their functions.
The animal cell diagram showcases important structures such as the nucleus, mitochondria, cytoplasm, and cell membrane. The plant cell diagram includes additional structures like the cell wall, vacuole, and chloroplasts.
Definition: The function of cell membrane is to control what goes in and out of the cell.
Highlight: The function of cell wall in plant cells is to provide structure and is made of cellulose.
The page also features a detailed diagram of a light microscope, labeling its key components such as the eyepiece, objective lenses, stage, and condenser. This is crucial for understanding light and electron microscopy GCSE questions.
Vocabulary: Magnification is defined as how much bigger the image of a sample is relative to its actual size.
The document explains that the total magnification of a microscope is calculated by multiplying the magnification of the eyepiece lens by the magnification of the objective lens.
Example: If the eyepiece lens has a magnification of 10x and the objective lens has a magnification of 40x, the total magnification would be 400x.
Lastly, the page compares light and electron microscopes:
Highlight: Electron microscopes have a higher magnification and a higher resolution, while light microscopes have a lower magnification and lower resolution.
This information is crucial for understanding the 5 differences between light and electron microscope and the disadvantages of electron microscope GCSE studies often cover.
