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BIL 150 - Mallery Practice test 1 Questions With 100% accurate Solution Scored A
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The tertiary level of 3D protein structure is stabilized by a) ester bonds only b) hydrogen bonds only c) interaction with the molecular environment d) glycosidic bonds e) none of these is correct - CORRECT ANSWER-c) interaction with the molecular environment Which one of these chemical b...

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  • November 22, 2024
  • 29
  • 2024/2025
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  • bil 150 mallery practice test 1 questions with 1
  • bil 150 mallery practice test 1 questions stuvia
  • the tertiary level of 3d protein structure is stab

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BIL 150 - Mallery Practice test 1
Questions With 100% accurate Solution
Scored A

The tertiary level of 3D protein structure is stabilized by



a) ester bonds only

b) hydrogen bonds only

c) interaction with the molecular environment

d) glycosidic bonds

e) none of these is correct - CORRECT ANSWER-c) interaction with the molecular
environment



Which one of these chemical bonds is planar?



a) C-C

b) peptide bond

c) glycosidic bond

d) hydrogen bond

e) ionic bond - CORRECT ANSWER-b) peptide bond



in the figure the protein structure depicted by the letter D can be best described as
which of the following?



a) an alpha helix

,b) a quaternary structure

c) a beta sheet

d) the enzyme's substrate

e) none of these is correct - CORRECT ANSWER-c) a beta sheet



protein that has the same catalytic reactivity as another protein, but has a different
amino acid sequence is referred to as a(n)



a) homologous protein

b) contractile protein

c) ubiquitin

d) polymorphic protein

e) none of these is correct - CORRECT ANSWER-d) polymorphic protein



the 3D shape most often seen in proteins, especially enzymes, is



a) linear

b) globular

c) tetrahedral

d) fibrous

e) helical - CORRECT ANSWER-b) globular



A protein fingerprint produced by 2 dimensional gel electrophoresis involves which of
the following techniques?



a) gel filtration and affinity chromatography

, b) ion exchange and gel filtration chromatography

c) isoelectric focusing & SDS electrophoresis

d) affinity chromatography & isoelectric focusing

e) none of these is correct - CORRECT ANSWER-c) isoelectric focusing & SDS
electrophoresis



a 20,000g centrifugation spin that results in pelleting of mitochondria and small
organelles is done by



a) differential centrifugation

b) affinity chromatography

c) isoelectric focusing

d) 2D electrophoresis - CORRECT ANSWER-a) differential centrifugation



The pH where there is no net charge on an ionizable molecule is known as its



a) zwitterion

b) ionization point (pK)

c) isoelectric point

d) D-optical isomer

e) none of these is correct - CORRECT ANSWER-c) isoelectric point



the movement of water to the top of very tall trees is due to which of the following
properties of the water molecules



a) its specific heat

b) its heat of fusion

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