The Fluid Mosaic Model of Membranes Membranes are vital structures found in all cells The cell surface membrane creates an enclosed space separating the internal cell environment from the external ...
Edexcel IGCSE Maths复习笔记 1.4.2 Roots & Indices - Harder What are indices? An Index (plural = indices) is just a power that a number (called the base) is raised to: Laws of indices – what you...
Interphase Within multicellular organisms, not all cells retain the ability to divide Eukaryotic cells that do retain the ability to divide show a cell cycle Mitosis is part of a precisely controll...
What are indices? An Index (plural = indices) is just a power that a number (called the base) is raised to: Laws of indices – what you need to know There are lots of very important laws (or ...
The Principles & Limitations of Microscopy Microscopes can be used to analyse cell components and observe organelles Magnification and resolution are two scientific terms that are very importan...
The Cell Theory Until microscopes became powerful enough to view individual cells, no-one knew for certain what living organisms were made from A scientist called Robert Hooke is thought to be the ...
Edexcel IGCSE Maths复习笔记 1.3.2 HCFs & LCMs What are Factors & Multiples? Factors are numbers (or expressions) which divide into another number exactly e.g. 3 is a factor of 18 as
The Structure of ATP All organisms require a constant supply of energy to maintain their cells and stay alive This energy is required: In anabolic reactions – building larger molecules from ...
The Function of DNA & RNA Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are both types of nucleic acid DNA and RNA are both found in all living cells DNA and RNA are both needed to bui...
