Appreciating the Process of Distinguishing Organelles When looking at a?prepared sample?(e.g. a cell or a group of cells) under a microscope, you can sometimes see things that aren’t actuall...
Cell Fractionation & Ultracentrifugation Biologists and other scientific researchers may sometimes want to study?one specific?organelle This may be to: Look at the appearance of the spec...
Magnification Calculations Magnification?is?how many times bigger?the image of a specimen observed is in comparison to the actual (real-life) size of the specimen The?magnification?(M) of an...
Resolution & Magnification Magnification Magnification is how many times bigger the image of a specimen observed is in compared to the actual (real-life) size of the specimen A?light mic...
Practical Skill: Using Iodine to Detect Starch Grains Starch is the?storage polysaccharide?of plants Sugars formed during?photosynthesis?are stored as starch inside?starch grains These starc...
Practical Skill: Microscopy & Drawing Scientific Diagrams Many biological structures are too small to be seen by the naked eye Optical microscopes are an invaluable tool for scientists a...
Key Features of Viruses Viruses?are?non-cellular infectious particles?that straddle the boundary between ‘living’ and ‘non-living’ They are relatively simple in structure; much smaller than ...
Prokaryotic v Eukaryotic Cell Structures Animal and plant cells are types of?eukaryotic?cells, whereas bacteria are a type of?prokaryote Prokaryotes have a cellular structure distinct from e...
Prokaryotic Cells Animal and plant cells are types of?eukaryotic?cells, whereas bacteria are a type of?prokaryote Prokaryotic cells are much?smaller?than eukaryotic cells (between 100 - 1000...
