1. All living organisms are made up of one or more cells
2. The cell is the basic unit of life
3. All cells come from the division of pre existing cells
4. Cells comes in many shapes and sizes
Cells carry on all the processes associated with life, such as reproducing and interacting with the environment.
Diff between light microscope and electron microscope
Parts of a light microscope
Prokaryotes
Eukaryotes
Parts of a cell
Cytoskeleton – Microfilaments and Microtubules make it up Microfilaments- actin, help cell move
Microtubules- tublen, maintains cell structure
Organelles that built proteins Ribosome, ER, Golgi Apparatus
Energy related organelles Chloroplasts and Mitochondria
Chloroplasts →converts solar energy into starch(photosynthesis)
Mitochondria → convert chemical energy into energy more conveniently used by the cell. (Cellular Respiration)
Slide 75
Cell membrane, things go in (sugars, proteins, fats, salts, oxygen, H2O), thingy go out (ammonia, salts, CO2, waste)
Cell Membrane is Semi Permeable meaning some things can get in and some get out.
Fats and oils can pass directly through.
They need to make specific channels or doors for specific substances.
Simple diffusion no energy neede easy
Facilitated diffusion no energy needed but with help