Once formed, the and forms of D-glucose are a. not capable of interconversion. b

Question

Once formed, the and forms of D-glucose are
a. not capable of interconversion.
b. interconvertible directly with no intermediate and arein equilibrium with one another.
c. interconvertible only through a linear, noncyclicintermediate with which they are both in equilibrium.



Glycosidicbonds
a. connect sugar molecules in both linear and branches ofcomplex carbohydrates.
b. only connect carbon-1 of one sugar to carbon-4 ofanother.
c. destroy the asymmetric character of the participatingcarbons.


Human blood groups(ABO) are
a. the result of the same oligosaccharides being attachedto different proteins.
b. the result of differing glycotransferases.
c. the result of the presence or absence of certainsugars.


Glycoproteins are proteins to which carbohydrates havebeen covalently attached. The amino acid R groups that serve as thesites for such attachment include
a. negatively charged amino acid R-groups.
b. cysteine.
c. hydroxyl-containing R-groups.


The processes of N-linked and O-linkedglycosylation
a. both take place in the endoplasmicreticulum.
b. both take place in the Golgi apparatus.
c. both occur while the protein is being synthesized onthe ribsosome.

Explanation / Answer

2.A 3. C 4. C 5.B 5.B

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