Biol 242 - Study guides, Class notes & Summaries

USU HUMAN PHYSIOLOGY FINAL (BIOL 2420) COMPLETE EXAM PRACTICE QUESTIONS AND ANSWERS

Why is it important as a beginning microbiologist to appreciate the ubiquity of microorganisms when working in a microbiology lab and trying to maintain aseptic technique? - .To be aware that microorganisms are everywhere and can very easily contaminate your cultures Identify where you would place the culture in the following scenario: You inoculated a broth with E. coli in lab and want to grow the culture for 48 hours and will check on the culture during the next lab period. - 37 degrees C...

BIOL 2420 - CH 19 Smartbook. 171 Questions and Correct Answers, 100% Correct, Latest 2024/2025. 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

Anton van Leeuwenhok - Dutch merchant & scientist who observed live microorganisms (bacteria & protozoa) through his improved compound microscope Algae - Photosynthetic eukaryotes; can reproduce sexually or asexually; microbiologist interested in unicellular; cell wall composed of cellulose; Benefits of Microogranisms - basis of food chains in marine & freshwater environments; decomposers; important role in photosynthesis; digestion in human intestine; synthesis of Vitamin B and Vitamin K;...

USU HUMAN PHYSIOLOGY FINAL (BIOL 2420) COMPLETE EXAM PRACTICE QUESTIONS AND ANSWERS

Define physiology and explain how it is related to other science disciplines. the study of functioning of a normal living organism and its component parts, including chemical and physical processes List the levels of structural organization that make up the human body and explain how the levels increase in complexity atom - molecules - cells - tissues - organs - organ systems - organisms - populations of species - ecosystem of diff species - biosphere Explain how the organ systems cooperate to...

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)...

Which of these is not a function of inflammation? a. bring in leukocytes b. cool off the area to reduce swelling c. pain d. promote healing b. cool off the area to reduce swelling What is responsible for causing fevers? a. autoantigens b. pyrogens c. superantigens d. alloantigens b. pyrogens Cells of the acquired immune system that destroy cells infected with virus a. helper T cells b. natural killer cells c. cytotoxic T cells d. plasma B cells c. cytotoxic T cells Which function of antibo...

Broad-spectrum drugs affect many taxonomic groups. ability of a drug to be effective against a wide range of microorganisms Narrow-spectrum drugs affect only a few pathogens. Secondary metabolite are compounds not directly used for growth or reproduction. sulfalilamides Target Specific Metabolic Reactions •Sulfonamides outcompete essential folic acid components for binding sites in a bacterial enzyme. •They prevent nucleic acid synthesis and DNA replication. Quinolones Are Among the M...

What is respiration? obtaining and use of oxygen and the removal of CO2 What are the 3 mechanisms of respiration? ventilation external respiration internal respiration What is ventilation? move air into lungs What is external respiration? exchange of gasses between lungs and blood What is internal respiration? exchange of gasses between the blood and the tissues What is diffusion? Movement of molecules from high to low concentration What drives internal respiration? diffusion - moving from...