Bio 280 Study guides, Class notes & Summaries

1830s - -many ancient people were animists -in many eastern and ancient cultures, man is part of nature -the gods of humans are animals and forces of nature -humans see themselves as belonging with nature 1830s - -many ancient people were animists -in many eastern and ancient cultures, man is part of nature -the gods of humans are animals and forces of nature -humans see themselves as belonging with nature 2 main groups of whales - balaenopteridae, and oooh whales 2 main groups of whale...

"-cide" - refers to killing. "Bacteriocide" kills bacteria, "fungicide" kills fungi, etc. "-static" - means 'to stand still'. Refers to an agent which prevents growth but doesn't kill. "Bacteriostatic" or "fungistatic" or "virustatic" agent "troph" means - eat A solution containing an antibiotic? - Filtration Abiogenesis - life arise from non-living matter Acidophiles - like low ph Active transport - Moving from lower to higher concentration. Aerotolerant - If there'...

"I wouldn't touch that with a 10ft pole" - There was epidemics going around and multiple people would die and during this time people would die and they were so tired from taking care of people they didn't have time to bury them so they would be carried out to the curb and picked up by a plague cart driven by horse, they would use a stick so he could get bodies w/o being able to breath in the miasma Alexander Fleming - Had PHD in microbiology and a MD was doing research All bacterial ce...

_______ are the prominent macromolecules in cells - Proteins ________ _________ - compounds containing both carbon and hydrogen atoms - Organic chemicals __________ molecules (e.g. soap, _phospholipids_) have both hydrophobic and hydrophilic properties. - Amphipathic A ________ fatty acid forms a triglyceride whose straight chains pack together to form solid fats. - Saturated A compound microscope used the total magnification of the ______ lens and the _____ lens.w - Ocular, objective A...

How many chromosomes are found in prokaryotes? - one What is another place that can have DNA in prokaryotes? - plasmid Bacteria generally have a? - single large chromosome Super Coiled DNA is - DNA packed and coiled which is held together by proteins. It is not bounded by a membrane. Plasmids - -Extrachromosomal circular DNA -Contain genes which are not necessary for the organism's survival but which may be useful to it (e.g antibiotic resistance genes, genes for enzymes which degr...

A vaccine that only includes subunits involves? - Soluble Antigens Adjuvants boost response how? (2 ways) - boost responses by "irritating" immune system OR clumping antigens After a threat has been neutralized, what happens to Tc cells, Th1 cells and Tm cells? which are cloned/live how long? - Cloned Tc cells and Th1 cells die (short-lived) Memory T-cells (Tm) live forever (do not have a set life span for apoptosis to occur) After a threat is over, what occurs during a second exposure...

Describe the three levels of the bodies defenses specific/solicited? Where? - Level one: on surface -non specific, non-solicited Level two: beneath the surface -non-specific, semi-solicited Level three: systemic responses -specific, solicited What defenses contribute to the level one defenses? type of cells? layering/levels in skin? moisture? also includes? - skin, mucous membranes, chemicals close fitting cells, multi-layered epidermis and dermis, dry also includes ke...

amphipathic molecules - molecules with both hydrophilic and hydrophobic properties approaches of antibiotics - -inhibition of cell wall formation --beta lactam -inhibition of cell membrane function -inhibition of DNA synthesis -inhibition of protein synthesis -inhibition of nucleic acid synthesis aqueous environment - -polar water environment that interacts with other polar molecules/ions (hydrophilic molecules) -formation of hydrogen bonds -environment doesn't react with nonpolar sub...

_______________ can create new alleles of existing genes; ______________ can create novel genes. a. insertion mutations, retrotransposition b. unequal crossing over during meiosis, deletion mutations c. polyploidization, insertion mutations d. all of the above are correct - A Alleles a. are found at genetic loci. b. are always dominant or recessive. c. are alternative forms of a phenotype. d. are found in germline tissue only - A Although humans cannot synthesize ascorbic acid (vitamin...