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what are phytosterols? what are the 3 most common? - Correct Answers- plant-derived sterols that are structurally similar to cholesterol - beta-sitosterol, campesterol, stigmasterol 2 subclasses of phytosterols? structure? any characteristics? - Correct Answers1. sterols - has a double bond at position 5 2. stanols - has a reduction of the double bond at position 5 - less common than sterols - more a product of sterol bacterial degradation than in food - produced by hydrogenating ster...

Resonance Trends - Correct Answers1- lp next to pi bond 2- lp next to + charge 3- pi bond next to + charge 4- pi bond next to lp in ring 5- pi bond in between two atoms Major Contributors in Order - Correct Answers1. Greatest # filled octets. 2- Fewer formal charges. 3- (-) charge on most electronegative atom 4- (+) charge on less electronegative atom Formal Charge Equation - Correct AnswersValence - (bonds + dots) Alkane - Correct AnswersC-H Alkene - Correct AnswersC=H Alk...

in an acid-base reaction, does the equilibrium favor the side of the weaker or stronger acid? - Correct Answers equilibria favor the reaction side with the lowest-energy species, acid-base reactions will go to the side with the WEAKEST acids and bases resonance structures - Correct Answers two forms of a molecule where the chemical connectivity is the same but the electrons are distributed differently around the structure. Resonance occurs when electrons can flow through neighboring pi system...

What properties make water the best solvent for life? - Correct Answers Due to its polarity and ability to form hydrogen bonds, water makes an excellent solvent What is the geometric and molecular structure for water? - Correct Answers Geometric - distorted tetrahedral Molecular - H2O What is hydrogen bonding? What are the requirements? - Correct AnswersA strong dipole-dipole or charge-dipole interaction that arises between an acid (proton-donor) & a base (proton-acceptor). A Hydrogen ...

what effects the distance traveled by a solute in thin layer chromatography? - Correct Answers molecular polarity and structure (weight, geometry, C-C double bonds) Thin Layer Chromatography stationary phase - Correct Answers paper thin layer chromatography mobile phase - Correct Answers the solvent (water / alcohol) we used sodium citrate isopropanol EVALI - Correct Answerse-cigarette or vaping associated lung injury Rf equation - Correct AnswersRf=distance traveled by substa...

reversible binding of ligands is essential (T/F) T induced fit The change in shape of the active site of an enzyme so that it binds more snugly to the substrate, induced by entry of the substrate. cooperativity A kind of allosteric regulation whereby a shape change in one subunit of a protein caused by substrate binding is transmitted to all the other subunits, facilitating binding of additional substrate molecules to those subunits. Enzyme = _______ catalyst What do enzymes transform into o...

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How does culture manifest itself? - Correct Answers the laws, customs, ritual behavior, and artistic production common to the group For what are the paintings in Chauvet known? - Correct Answers the cave paintings were very naturalistic; people were abstract Where was evidence of the earliest hominins found? - Correct Answers ethiopia In what nation was the Willendorf Venus discovered? - Correct Answers Austria Which feature on the Willendorf Venus was a natural indentation in the st...

This term identifies an upright stone slab decorated with relief carvings, frequently used as a grave marker. - Correct Answers Stele This Sumerian king who ruled Uruk about 2700 B. C. E. is also the subject of an epic story that predates the Iliadand the Odyssey - Correct Answers Gilgamesh This is the Egyptian architect who designed the earliest pyramid as a tomb for the Pharaoh Zoser - Correct Answers Imhotep This is a type of standing male statue, always shown nude. - Correct Answers...

He was a popular senator and also the author of some influential books on Roman history. - Correct Answers Tacitus Nat Turner of the USA could be compared to one of the following from Ancient Rome. - Correct Answers Spartacus The name 'Manumission' in Ancient Rome was related to one of the following? - Correct Answers Slavery Which one of the following Ancient Rome poet became popular with his poetry about love and sex but angered Emperor Augustus. - Correct Answers Ovid Name o...