MICROSCOPES AND CELLS

• eukaryotic cells= plants and animals
• animals and plants have: cell membrane, nucleus, mitochondria, cytoplasm, ribosomes
• plants only: chloroplasts, vacuole, cell wall
• prokaryotic cells= bacteria
• bacteria has: mitochondria, ribosomes, flagellum, plasmids, cells wall
• light microscope- cheap, see outline of cells
• electron microscopes- see finer details including sub cellular structures, greater resolution and magnification
• coarse focus= used to focus low, medium and high objective lens
• fine focus- used for high lens
• objective lens= x4, x10, x40
• IAM triangle
• CP: peel onion tissue with tweezers
• CP: add a drop of water to clean slide place onion tissue on slide
• CP: add a drop of iodine to stain cell structures so they can be observed
• CP: place cover slip ontop of specimen