Lipids: Structure & Function Triglycerides Triglycerides are?fats and oils Fatty acid and glycerol molecules?are the components that make up triglycerides Fats and oils have a number of importa...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.8 Proteins & Active Transport Importance of Active Transport: Extended Energy is needed because particles are being moved?against a concentration gradient, in t...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.7 Active Transport Active Transport Active transport is the movement of particles through a cell membrane from a region of?lower concentration?to a region of?higher...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.5 Osmosis Experiments Osmosis in Plant Tissues When water moves into a plant cell, the vacuole gets bigger,?pushing the cell membrane against the cell wall Water en...
Lipids Lipids Lipids are macromolecules that contain carbon, hydrogen and oxygen atoms. Unlike carbohydrates, lipids contain a lower proportion of oxygen Lipids are?non-polar?and?hydrophobic?(insol...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.7 Active Transport Active Transport Active transport is the movement of particles through a cell membrane from a region of?lower concentration?to a region of?higher...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.6 Osmosis in Animals & Plants Osmosis in Plant Tissues When water moves into a plant cell, the vacuole gets bigger,?pushing the cell membrane against the cell w...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.4 Osmosis Osmosis All cells are surrounded by a cell membrane which is?partially permeable Water?can move in and out of cells by osmosis Osmosis is the diffusion of...
CIE IGCSE Biology: 復(fù)習(xí)筆記：3.1.3 Water Water as a Solvent Water is important for all living organisms as?many substances are able to dissolve in it?(it is a?solvent) This makes it incredibly usef...
