` Study Guide for Exam 1 Chapter 1: 1. What is a “microbe”? What groups of organisms are included in this category? Microbes (microorganisms) are minute living things that individually are too small to be seen with the unaided eye the group includes bacteria‚ fungi‚ protozoa‚ and microscopic algae‚ viruses Only minority of microorganisms are pathogenic(disease-producing) 2. What are some of the benefits provided by microbes? Decompose organic waste‚ producers in the ecosystem
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all plant cells have the same basic eukaryotic organization. Cells contain a nucleus‚ a cytoplasm and subcellular organelles and they are enclosed in a membrane that defines their boundaries. In the Hydrilla leaf‚ observed under the microscope‚ Cells were so distinct that the outline and the rectangular shape of the cells were clearly seen. Individual cell Middle lamella Chloroplasts
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the worksheet 7. Worked on lab report Data: defintions of the mircoscopes parts: Data part 2 After turning the light on‚ what two components allow one to adjust the light intensity of the microscope? Rheostat and the iris What structure holds the slide in place on the stage of the microscope? Spring load clip Which lens is in the light path? 4 x Of the stage adjustment knobs‚ the larger knob / Y-adjustment (on the top) moves the slide in which direction? In which direction does
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process of membrane assembly and vestibular movement in the eukaryotic cells. His interest in science started at a young age‚ he describes it when he got his first microscope and he saw his first specimen‚ and it open his eyes into the world of medicine. Even though his parents basically told him he didn’t see his vision in the toy microscope‚ he
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A. Identify the following parts of the microscope and describe the function of each. A=Ocular Lens- Magnifies the image as it brings it to your eye (Alonzo p52). B= Body Tube- Connects to the arm of the microscope with a gear that allows you to focus the image to focus the image when changing lenses or observers and moving the lenses away from the stage when changing
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Abstract The primary focus of this lab was on microscopy and simple stains. Crystal violet and Carbol fuchsine‚ simple staining components‚ were used to stain the slide in order to see the different microbes in order to determine their cellular shape and identify unknown ones by comparing. Introduction Bacterial cells are usually colorless because cytoplasm‚ for the most part‚ is transparent. Since the bacteria are colorless‚ it is almost essential to add a stain to make the bacteria more visible
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number of vacuoles because of equipment failure. Due to this error‚ the data collected in this experiment cannot be used for analysis in regards to research purposes. This error might have due to human related errors such as improper cleaning of the microscope that were used in this experiment. However‚ since the experiment yielded the
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Using IKI reagent to test the detection of starch in an onion and a potato. This is done by adding a drop of IKI reagent to the potato and the onion and examining both of them under a microscope looking for cell presence. I think that there is more starch in a potato than an onion. The potato under the microscope (160m magnification) without IKI reagent
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Theory of Knowledge Essay (May 2013) Question Title Six: Can we trust our emotions in the pursuit of knowledge? Consider history and one other area of knowledge Mankind shares psychological phenomena known as emotion that is a natural state of mind deriving from a person.1 By means of this special ability‚ trusting our emotions in the pursuit of knowledge can be questioned‚ as it is a circumstance that involves only an individual‚ there might be an
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Transport of vesicles facilitated by kinesin and the effects of mutations in nerve transmission in Caenorhabditis elegans Introduction A nerve cell is made up of three main structures: the soma‚ the axon and the synapse. When a nerve cell receives a signal‚ a protein called kinesin travels anterograde along the axon and guides the synaptic vesicles until it reaches the synapse. This triggers the release of the neurotransmitters stored within the vesicles. Once released‚ the neurotransmitters then
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