BIOL 2303 Lecture Notes - Lecture 2: Bright-Field Microscopy, Methylene Blue, Seaweed
2 Nov 2020
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Document Summary
They can be close relatives of plants. Examples of protists: dinoflagellates, ciliates, diatoms, slime mold, entamobas. Unicellular, filamentous, colonial and multicellular: seaweed or macroalgae. Mostly microscopic, some macroscopic (seaweed is macroscopic) Cell wall (diverse- cellulose, chitin, silica), wide range of chemistry in their cell wall which is what leads to fossilization. Photosynthetic: red, green and brown algae all have chlorophyll and different photosynthetic pigments, some algae live at the bottom of the ocean so they use different wavelengths (in comparison to green algae) of light to photosynthesize. Unicellular (yeast), filamentous (mold) and multicellular (mushrooms) Both microscopic (yeast and molds) and macroscopic (mushrooms) Non-photosynthetic: they are scavengers and obtain nutrients off of dead materials. Non-cellular: makes them not fall under the category of microorganisms, they do not reproduce on their own, they don"t store or use energy in any way. Some viruses can actually cause non-communicable diseases (hpv can cause cervical cancer)
