Biol 2420 - Study guides, Class notes & Summaries

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...

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...

BIOL 2420 EXAM 2 TEST RATED 100% CORRECT

What structures in the middle ear are responsible for sound amplification? the tympanic membrane that vibrates through 3 ear bones that end at oval window. tympanic membrane is bigger compared to oval window What is the function of and clinical complication associated with the Eustachian tube? links the middle ear to the back of the nose Drains into the mouth to equilibrate pressure Route of bacterial entry for most ear infections What inner ear structure converts sounds waves into APs? coch...

What is the single most important way to reduce the spread of unwanted microbes? handwashing Where and how should used media (culture tubes and plates) be disposed of? directly into bio hazard bin Where and how should a slide prepared by you (ex: Gram stain) be disposed of? Wrapped in a paper towel and disposed into the biohazard bin Where should gloves worn by you (after lab, not cleaning up a spill) be disposed of? in the regular trash can Where should a broken stock slide (ex: 3 forms sli...

e. smog production Microorganisms are involved in each of the following processes EXCEPT: a. infection b. decomposition of organic material c. oxygen production d. food production e. smog production e. using a sterile liquid and eliminating exposure to microorganisms If you were setting up an experiment to disprove spontaneous in a liquid medium, which of the following would be essential to the experiment? a. placing decaying meat in the liquid b. starting with a liquid that contains microorgan...

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...