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Fragen in diesem Quiz (26)
1The following two compounds are: https://moodle.oakland.edu/pluginfile.php/3553447/question/questiontext/2902254/30/7103254/isomers.jpg
- AConstitutional Isomers
- BStereoisomers
- CGeometric Isomers
- DDiasteromers
- ENot isomers
2If carbon 1 is the carbonyl group of a 6 carbon aldose (aldohexose), which carbon determines if the sugar is a D- or L- stereoisomer
- A1
- B2
- C3
- D4
- E5
3Which of the following sugars does not contain an A (1--> 4) O-glycosidic bond?
- Aamylose
- Bamylopectin
- Cglycogen
- Dcellulose
4The configuration around the atom labeled "1" in this molecule is ____. The angles between the bonds are expected to be approximately ___ degrees.
- ATetrahedral 109 degrees
- BTriagonal planar 120 degrees
- CTetrahedral 120 degrees
- Dtrigonal planar 109 degrees
- Enone of the answers are correct
5Which of the following does NOT contain a guanidium group?
- Aarginine
- Bcreatine
- Cguanidium ion
- Durea
6Geometric isomers:
- ADo not have the same molecular weight
- BAre mirror images of each other
- CHave different configuration around a double bond
- Dall of the above
- Enone of the above
7In which o the following functional groups ionization is stabilized by resonance?
- AHydroxyl
- BPhosphoric acid
- Camine
- Daldehyde
- Eall of the above
8Which of the following compounds results from the cyclization of glucose?
- Aa. alpha-D-glucopyronose
- Bb. beta-D-glucopyronose
- Cc. alpha-D-glucofuranose
- Dd. beta-D-glucofuranose
- Ee. All of the above
9A cyclic hemiacetal with a five membered oxygen containing ring can be referred to as an
- Aketo-furanose
- Baldo-pyranose
- Caldopentose
- Daldohexose
- Esorbitol
10Which of the following is CORRECT? Diastereomoers:
- Aare optical isomers of enantiomers
- Bare mirror images
- Care a sub-group of enantiomers
- Dall of the above
- Enone of the above
11Enantiomers:
- AHave the same molecular weight
- BHave the same connectivity
- CAre mirror images
- DAre non-superimposable
- EAll of the above
12Primary amines can
- Areact with carboxyl to form an amide
- Brelease a proton to become R-NH2+
- Cabsorb a proton to become R-NH4+
- Drelease a proton to become R-NH3+
- EAmines cannot either absorb or release a proton
13A glycosidic bond would be present in:
- Aacetone
- Bmethyl-alpha-D-glucose
- C2-deoxy-beta-D-ribose
- Dglucose-6-phosphate
- Efructose-1, 6-biphosphate
14D- and L- glucose are
- Astereoisomers
- Bconfigurational isomers
- Coptical isomers
- Denantiomers
- Eall of the above
15Which is FALSE? Structural isomers --
- Ahave the same molecular weight
- Bhave the same composition
- Calways have the same physical properties
- Dhave different connectivity
16D-glucose differs from D-galactose only in tea arrangement around carbon 4. Therefore D-glucose and D-galactose are
- Aenantiomers
- Bdiastereomers
- Cmirror images at carbon 5
- Depimers
- Eanomie's
17As a result of mutorotaion, D-glucose exists in the following forms EXCEPT
- Aglucopyranose
- Balpha-anomer
- Cfree aldehyde (linear)
- DL-glucose
- ED-glucopyranose
18Which of the following is FALSE? Water can be created by...
- Athe formation of ATP
- Bthe formation of a hemiacetal
- Cthe formation of a peptide bond
- Dthe formation of a thin-ester
- Ethe formation of an organic ester
19Which of the following pairs of functional groups cannot react with each other by a dehydration reaction?
- ACarboxyl; hydroxyl
- Baldehyde; hydroxyl
- Camino; carboxyl
- Dphosphate ; hydroxyl
- Ecarboxyl; sulfhydryl
20Which are examples of ester-type formation?
- AWhen a carbolic group reacts hydroxyl
- Bwhen a fat acid reacts with a glycerol
- Cwhen a phosphoric acid reacts with hydroxyl
- Dwhen a carboxylic reacts with a sulfhydryl
- Eall of the above
21Propane boils at -46 degrees C. Propanol boils at 97 degrees C. Therefore
- Acan form more dispersion bonds than propane does
- Bcan form more hydrogen bonds than propane does
- Cforms less intermolecular bonds than propane
- Drequires less energy to reach the BP
- Eall of the above
22Carbohydrate characteristic features include the following, EXCEPT
- Athe potential to form hydrogen bonds
- Bthe existence of one or more asymmetric centers
- Cthe capacity to form strong hydrophobic interactions in water
- Dthe ability to exist in either linear or ring structures
- Ethe capacity to form polymeric structures
23Which of the following functional groups does not contain a carbonyl?
- Aaldehyde
- Bcarboxyl
- Corganic ester
- Damide
- Ethey all contain a carbonyl
24Which of the following compounds contains an amine?
- Apalmitate
- Bacetate ion
- Curea
- Dacetaldehyde
- Eacetone
25Which of the following are structural isomers?
- AButane and propane
- BButane and 2 methyl-propane
- Cbutane and pentane
- Disobutane and isopentane
- Eall of the above
26Which of the following groups is NOT ionizable?
- Aguanidinium
- Bimidazole
- Cketone
- Damine
- Ephosphoryl
Informationen
- Beschreibung
- Quiz am Ohne Titel, erstellt von genny stubbs am 24/05/2017.
- Autor
- genny stubbs
- Sprache
- English
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- 0
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