Active Transport Revision Notes and Practice Quiz
By moving through the cell membrane, substances can enter and leave the cell. Three of the most common types of movement are diffusion, osmosis, and active transport.
By moving through the cell membrane, substances can enter and leave the cell. Three of the most common types of movement are diffusion, osmosis, and active transport.
Distillation is a method of purifying liquids based on their boiling points. If you have a mixture of multiple liquid compounds, all of which boil at different temperatures, distillation is probably your best bet for a powerful but economical method of separation.
All living things are made of cells – they're the building blocks of every organism on the planet. But different organisms have different cell structures.
Cell biology is the study of cell structure and function, and it revolves around the concept that the cell is the fundamental unit of life. Focusing on the cell permits a detailed understanding of the tissues and organisms that cells compose.
Please download and print the PDF worksheet if you prefer to study using pen and paper. The worksheets have the same questions as the web-page version.
The chemical concept of a “mole” is very important to be able to perform calculations in chemistry. Remember from your class that an atom’ atomic weight refers to the number of grams in one “mole” of that material. What exactly is a mole?
Microorganisms that cause disease are called pathogens. They cause communicable (infectious) diseases. Pathogens can infect both plants and animals.
Microscopy is an essential tool for scientific research and analysis, allowing us to observe and study objects that are too small to be seen with the naked eye. GCSE Science students must understand the principles of microscopy and the different types of microscopes and their uses.
In GCSE Biology or GCSE Science, students will learn about the different types of microscopes and their uses, the principles of microscopy and how it works. Microscopy is the objects, such study of very small cells in science using a microscope.