Biol 242 - Study guides, Class notes & Summaries
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BIOL 2420 EXAM #1 STUDY GUIDE EXAM UPDATE
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BIOL 2420 EXAM #1 STUDY GUIDE EXAM UPDATE
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Biol 2420 Exam One Study Guide with Questions and Correct Answers
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What are microbes? microscopic organisms 
In what ways microbes are beneficial to humans? Some are capable of helping human bodily functions, for example, some speed up the rate of digestion, produce oxygen through photosynthesis, produce ethanol and vitamins, disease treatment., and fermented food. 
In what ways microbes are harmful to humans? A small amount of them can be detrimental to the body by causing disease to spread to us, causing us to become sick, due to their pathogenicity. 
What ar...
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BIOL 2420 Metabolism Review Questions and Correct Answers
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What is metabolism? Metabolism is all of the chemical reactions in an organism. 
What are the major classes of metabolic reaction? Catabolism: All of the decomposition reactions in an organism taken together. Anabolism: All of the synthesis reactions in an organism taken together. 
What is oxidation and recucition reaction? What does is comprise of? Any metabolic reaction involving the transfer of electrons from an electron donor to an electron acceptor. Reactions when electrons are accepted are...
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Biol 2420 Chapter 3 Review Questions and Correct Answers
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Differentiate Prokaryotes from Eukaryotes. Prokaryotes: No Nucleus or Histones, No membrane bound organelles. Bacteria/ Archea 
What two taxa (domains) are prokaryotes divided into? Bacteria are divided into two groups based on what? Archae and Bacteria. Bacteria= divided in 2 based on gram stain reaction 
Know the basic shapes of prokaryotic organisms. Coccus(Round) Bacillus(Rod) Vibrio(Curve rod) Coccobacillus(Short Rod) Spirilla(Spiral) Spirochete(Long, loose helical spiral) 
define pleomorph...
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BIOL 2420 EXAM 2 TEST RATED 100% CORRECT
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BIOL 2420 EXAM 2 TEST RATED 100% CORRECT
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BIOL 2420 - CH 19 Smartbook Exam Questions and Answers 100% Solved
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BIOL 2420 - CH 19 Smartbook Exam 
Questions and Answers 100% Solved 
What is used to subdivide the gram-positive bacilli into three general 
groups? - acid-fast staining properties 
presence of endospores 
________ is a zoonotic disease caused by Bacillus anthracis with differing 
human disease manifestations based on the portal of entry - Anthrax 
Which of the following are characteristic of the genus Bacillus? 
gram-negative 
source of antibiotics 
aerobic 
saprobic 
endospore-forming 
anaerob...
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BIOL 2420 Lab Practical 1 Questions and Answers | 100% Pas
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BIOL 2420 Lab Practical 1 Questions 
and Answers | 100% Pass 
What is the single most important way to reduce the spread of unwanted microbes? - 
Answer️️ -handwashing 
Where and how should used media (culture tubes and plates) be disposed of? - 
Answer️️ -directly into bio hazard bin 
Where and how should a slide prepared by you (ex: Gram stain) be disposed of? - 
Answer️️ -Wrapped in a paper towel and disposed into the biohazard bin 
Where should gloves worn by you (after lab, not ...
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BIOL 2420: Exam #1 Practice Questions and Answers | 100% Pass
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BIOL 2420: Exam #1 Practice Questions 
and Answers | 100% Pass 
What are the 6 categories of microorganisms? - Answer️️ -Bacteria, archaea, fungi, 
protozoa, algae, and helminths. 
What are the differences between prokaryotes and eukaryotes? - Answer️️ - 
Prokaryotes: Unicellular, lack a nucleus and cytoplasic organelles, single circular DNA. 
Eukaryotes: Have a nucleus and cytoplamic organelles, multiple linear DNA molecule. 
What are the two types of prokaryotes? - Answer️️ -Bacter...
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BIOL 2420 EXAM #1 STUDY GUIDE WITH COMPLETE SOLUTIONS
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BIOL 2420 EXAM #1 STUDY GUIDE 
WITH COMPLETE SOLUTIONS 
Microbes - Answer️️ -minute living things that are too small to be seen with the 
unaided eye; include bacteria, fungi, protozoa, microscopic algae, and viruses 
Benefits of Microogranisms - Answer️️ -basis of food chains in marine & freshwater 
environments; decomposers; important role in photosynthesis; digestion in human 
intestine; synthesis of Vitamin B and Vitamin K; synthesize food & alcohol 
Pathogenic - Answer️️ -diseas...
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BIOL 2420 Lab Exam 1 Questions and Answers | 100% Pass
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BIOL 2420 Lab Exam 1 Questions and 
Answers | 100% Pass 
Proper Hand washing protocols - Answer️️ -1. remove any large jewelry 
2. wet you hands with clean water and soap 
3. rub hands together thoroughly 
4. scrub for about 20 seconds 
5. rinse your hands 
6. dry with paper towel 
spill protocols - Answer️️ -alert professor, spray a paper towel with lysol, cover 
contaminated area with disinfectant soaked paper towel, leave for about 10 minutes use 
paper towel to wipe up spill, dispose...
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