Exam (elaborations)
BCH 400 exam 1 Ellison questions with complete solutions
BCH 400 exam 1 Ellison questions with complete solutions
[Show more]
Preview 3 out of 28 pages
Uploaded on
October 12, 2024
Number of pages
28
Written in
2024/2025
Type
Exam (elaborations)
Contains
Questions & answers
Institution
BCH
Course
BCH
$19.49
Also available in package deal from $61.20
100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached
Also available in package deal (1)
$ 760.53
$ 61.20
47 items
1. Exam (elaborations) - Bch exam 2 questions with verified answers 2024-2025 updated
2. Exam (elaborations) - Bch final exam questions well answered graded a+ passed
3. Exam (elaborations) - Bch final exam set questions with correct answers
4. Exam (elaborations) - Bch exam 1 questions with 100% correct answers
5. Exam (elaborations) - Bch exam 1 questions and correct answers
6. Exam (elaborations) - Bch exam 1 questions with 100% correct answers
7. Exam (elaborations) - Bch exam 3 questions and correct answers
8. Exam (elaborations) - Bch final exam review updated already passed
9. Exam (elaborations) - Bch exam 3 questions well answered to pass
10. Exam (elaborations) - Bch exam 1 (questions with complete solutions)
11. Exam (elaborations) - Bch exam 1 questions with correct answers
12. Exam (elaborations) - Bch exam 1 questions and answers a+ rated
13. Exam (elaborations) - Bch exam 2 questions with verified answers 2024-2025 updated
14. Exam (elaborations) - Bch 3053 exam 2 questions well answered to pass
15. Exam (elaborations) - Bch 5413 exam 1 notes questions well answered
16. Exam (elaborations) - Bch 351 exam 1 questions and correct answers graded a+
17. Exam (elaborations) - Bch exam 1 hw questions with complete solutions
18. Exam (elaborations) - Bch exam 2 questions with verified answers 2024-2025 updated
19. Exam (elaborations) - Bch 403 3rd exam questions with correct answers graded a+
20. Exam (elaborations) - Bch 100 final questions with correct answers
21. Exam (elaborations) - Bch 5413 exam 1 questions well answered
22. Exam (elaborations) - Bch 371 - final exam questions well answered
23. Exam (elaborations) - Bch 367 exam 1 review (updated)questions n answers
24. Exam (elaborations) - Bch 369 exam 2 (final review grabner) questions well answered to pass
25. Exam (elaborations) - Bch exam 3 past qs with complete solutions
26. Exam (elaborations) - Bch 400 exam 1 practice questions well answered to pass
27. Exam (elaborations) - Bch 400 final review (updated)questions well answered to pass
28. Exam (elaborations) - Final exam bch 361 questions correctly answered
29. Exam (elaborations) - Bch final exam questions with complete solutions
30. Exam (elaborations) - Bch exam 4 questions with 100% correct answers
31. Exam (elaborations) - Bch 4024 exam 1 questions with complete solutions
32. Exam (elaborations) - Bch 400 exam 1 ellison questions with complete solutions
33. Exam (elaborations) - Bch exam 3 questions and correct answers graded a+
34. Exam (elaborations) - Bch 369 exam 1 questions with correct answers
35. Exam (elaborations) - Bch 361 exam 4 questions well answered
36. Exam (elaborations) - Bch 3025 exam 2 questions and answers a+ rated
37. Exam (elaborations) - Bch 330 exam 1 questions with complete solutions
38. Exam (elaborations) - Bch 461 final exam questions well answered to pass
39. Exam (elaborations) - Bch 339m exam 1 questions well answered already passed
40. Exam (elaborations) - Bch exam 2 practice questions well answered to pass
41. Exam (elaborations) - Bch 100 mt 1 questions with 100% correct answers graded a+ already passed
42. Exam (elaborations) - Bch 403 final exam questions with complete solutions
43. Exam (elaborations) - Bch 4053 final exam questions correctly answered already passed
44. Exam (elaborations) - Bch 3023c exam 2 questions & answers
45. Exam (elaborations) - Bch 4024 exam 3 questions well answered to pass
46. Exam (elaborations) - Bch 330 final exam questions n answers graded a+
47. Exam (elaborations) - Bch 371 - exam 1 (ch. 2-5) questions and correct answers
Show more
BCH 400 exam 1 Ellison
An object is alive if: - correct answer ✔✔1. uses energy from some source to drive chemical rxns
2. reproduces
3. undergoes evolution
all life on Earth: - correct answer ✔✔-nucleic acid as hereditary molecule
-same genetic code
-same AA to make proteins
-1 or more cells
-complex organism
-evolution
Why is life carbon based? - correct answer ✔✔-C forms single, double, triple bonds
-bonds w/ H,N,S,O,P & others
Ochem performed by living systems is highly stereospecific - correct answer ✔✔-generally only deal with
1 stereoisomer not mix
geometric isomers - correct answer ✔✔cis or trans
-diff physical + chem properties
enantiomers - correct answer ✔✔mirror images around chiral centers
-identical physical (except polarized light)
-react identically with achiral reagents
diastereomers - correct answer ✔✔non-mirror around chiral ctr
-diff physical + chem properties
,living organisms exist in a dynamic steady state and are never @ equilibrium w/ surroundings - correct
answer ✔✔-energy coupling
-biological catalysts
-entropy inc= creating and maintaining order requires energy
how to speed reactions up: - correct answer ✔✔-inc. temps (stability of macromolecules is limiting)
-inc. concent. of reactants (costly)
-change rxn by coupling to a fast one (universally used)
-lower activation barrier by catalysts (universally used)
Miller & Urey in 1953 - correct answer ✔✔demonstrated that organic compounds could form under
primitive conditions
van der waals - correct answer ✔✔-attractive force (London dispersion) depends on polarizability
-repulsive force (steric repulsion) size of atoms
-attraction dominates at longer distances
-repulsion at shorter
-weak individually
importance: determines steric complementarity, stabilizes biological macromolecules )stacking in DNA),
facilitates binding of polarizable ligands
hydrophobic effect - correct answer ✔✔-association/interaction of nonpolar molecules in aqueous sol
-main factor behind: protein folding, protein-protein association, formation of lipid micelles, binding of
steric hormones to their receptors
-does NOT arise b/c of some attractive force b/w 2 nonpolar molecules
How hydrophobic effect happens - correct answer ✔✔-nonpolar portions of amphipathic molecule
aggregate so fewer molecules are ordered= entropy inc.
-micelles, bilayer, vesicles
, hydrophobic effect favors ligand binding - correct answer ✔✔-binding sites in enzymes + receptors are
often hydrophobic
-displace water= inc. entropy
-drugs take advantage of hydrophobic effect
h bonds - correct answer ✔✔-strong dipole-dipole interactions
-strongest when bonded molecules allow for linear bonding
-not unique to water
water is medium for life - correct answer ✔✔-protection from UV (life evolved in water)
-organisms= 70-90% water
-chemical rxns occur in aqueous
-structure of water molecule: sp^3, octet, H bond donor+acceptor
-water: high BP, MP, large surface tension
-good solvent for polar molecules, bad for nonpolar
solutes change properties of water: colligative properties - correct answer ✔✔-BP, MP, osmolarity
-do not depend on nature of solute, just concentration
solutes change properties of water: noncolligative properties - correct answer ✔✔-viscosity, surface
tension, taste, color
-depend on chemical nature of solute
osmotic pressure - correct answer ✔✔high conc. to low conc.
proton hopping - correct answer ✔✔protons do not exist free in solution
what does a high Ka mean? - correct answer ✔✔-low pH