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Home Q & A Board Biology-Related Homework Help Biochemistry
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Hog95 Hog95
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11 years ago
Where stereoisomers of biomolecules are possible, only one is usually found in most organisms;
for example, only the L amino acids occur in proteins. What problems would
occur if, for example, the amino acids in the body proteins of herbivores were in the L
isomer form, whereas the amino acids in a large number of the plants they fed upon were
in the D isomer form?
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#1
Educator
11 years ago
All metabolic reactions in an organism are catalyzed by enzymes that are generally specific for either the D or the L isomeric form of a substrate. If an animal (an herbivore in this case) is to be able to digest the protein from a plant and build its own protein from the resulting amino acids, both the animal and the plant must make their proteins from amino acids having the same configuration.
Hog95 Author
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#2
11 years ago
Thank you!
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