Biol 2420 exam 1 - Study guides, Class notes & Summaries

Leuwenhoek Microscopes, animalcules 2 fundamental cell types Prokaryotic Eukaryotic Prokaryotic cells BACTERIA & ARCHAEA smaller size gives high surface to low volume, facilitates rapid uptake of nutrients cons: vulnerability to predators, parasites, and competitors Eukaryotic Larger, more complex, many cellular processes take place in membrane bound components precense of nucleus bacteria and archea lack nucleus found in sufficient moisture, some in extreme environments asexual peptidoglyca...

Coccus (cocci) Round, berry shaped, can be oval, pointed, or kidney-shaped Bacillus (bacilli) Rod-shaped, can be pointed or filamentous Spirilla Spirilla, spirochetes, or vibrios Pleomorphic Vary in shape and size and do not have a cell wall. Difficult to treat because without a cell wall, a gram stain can't be done, so difficult to predict what antibiotic to use for treatment. Diplococci Cocci that remain attached Streptococci Long chains of cocci Tetrads Cocci that divides in 2 planes a...

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...

BIOL 2420 EXAM #1 STUDY GUIDE EXAM UPDATE

BIOL 2420 EXAM #1 Questions And Answers Microbes - ANS minute living things that are too small to be seen with the unaided eye; include bacteria, fungi, protozoa, microscopic algae, and viruses Benefits of Microorganisms - ANS 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 - ANS disease producing Bacteria - ANS...

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...

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...

Explain the importance of observations made by van Leeuwenhoek 1) created the first microscope 2) first discovered the bacterial world Define microbes in the words of van Leeuwenhoek and as we know them today "beasties" & "animalcules" now: microorganisms Be able to differentiate each group and know which groups are prokaryotic and which are eukaryotic. If given a microorganism, could you place it into the correct group? 1) bacteria: prokaryotic ex: streptococcus 2) archaea: prokaryotic 3)...

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...

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 ...