Biol 2420 - Study guides, Class notes & Summaries

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...

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 ...

Define ubiquity of microorganisms. Basically that microorganisms can be found/grown anywhere in almost every type of environment GloGerm activity purpose to train you to wash your hands more thoroughly/effectively; shows that hand washing with soap is not enough to remove all microbes How do you focus a microscope? 4x (scanning) - coarse knob - red ring 10x (low) - fine knob - blue ring 40x (high) - fine knob - yellow ring 100x (immersion oil) - fine knob - black/white rings When do you use i...

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...

What is physiology? Study of function What was Aristotle's contribution to physiology? He believed that large structures were made of smaller things, and coined the term physiologi to describe natural causes for diseases What did Hooke do? He made a 30x microscope, He was the first to see and name cells What is the body's structural hierarchy? Can you list the organization from smallest to largest units? Atoms, molecules, organelles, cells(first living!), tissues, organs, organ systems, org...

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...

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...

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...

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...

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...