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bio lab final exam review

bio lab final exam review - BIO REVIEW 80MC(1PT 4 FREE...

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BIO REVIEW: 80MC (1PT), 4 FREE RESPONSE (4PT) 1.) Biology-the study of life Question explains itself. Biology is the study of life. 2.) Terms: unicellular, multicellular, eukaryotic, prokaryotic Unicellular : one cell Multicellular : more than one cell Eukaryotic : has a distinct nucleus surrounded by a nuclear membrane, as well as a variety of other characteristics (membranous organelles) Prokaryotic : has no nucleus or membrane bound organelles (endoplasmic reticulum, mitochondria, plastids, or Golgi bodies). The cells of bacteria and blue-green algae are prokaryotic 3.) know the Characteristics of Life: presence of carbon, organization & complexity, metabolism, homeostasis, response to stimuli, reproduction, and growth know the Five Kingdoms of Life: monera (bacteria), protista (protozoans & algae), fungi, plantae, animalia; common examples and characteristics of each First part of question answers itself. 1.) Monera : are unicellular organisms that are simple in structure. They lack nuclei in their cells and are prokaryotic. Example: bacteria 2.) Protista : are unicellular and possess a nucleus. They are eukaryotes. Example: protozoans and algae. 3.) Fungi : are multicellular, eukaryotic, and heterotrophic. They obtain their food from other organisms. Examples: mushrooms, molds, yeast. 4.) Plantae : they are eukaryotic, multicellular, and autotrophic (self-feeding). They use sunlight or other inorganic energy sources to synthesize organic matter that can serve as food (photosynthesis) example: plants 5.) Animalia : they are eukaryotic, multicellular, and heterotrophic. They are capable of movement. Reproduction is sexual. Examples: lizards, insects, humans, etc 4.) know the Types of microscopes: compound light microscope (used in lab), dissecting microscope, scanning electron microscope, transmission electron microscope The Question answers itself. The types of microscopes are: compound light microscope (used in lab), dissecting microscope, scanning electron microscope, transmission electron microscope 5.) know for what purposes compound light, dissecting, transmission and scanning (electron) microscopes are used compound light is a microscope that uses two or more lenses and a light source to magnify objects. It is the most common microscope used to observe organisms. Dissecting microscope is used for observing and dissecting larger specimens. Transmission microscope is used for viewing the internal structure of cells and cell parts. The scanning electron microscope is used to study the surface detail of specimens and specimens too thick for viewing with the transmission microscope. 6.) know the Major parts of compound light microscope (fig 1.1), and what each part does Eyepiece : the lens that you look through. They enlarge the image that the telescope produces. Changing the eyepiece will change the magnification Objective : the lowers lenses closest to the specimen in a microscope. They receive the first light rays from the object being observed. The objective is also called the object lens, object glass, and objective glass.
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