In plants and bacteria, phenylalanine and tyrosine are synthesized from chorismate in pathways much more complex than the tryptophan pathway.
举一反三
- The branch amino acids involved in “the hypothesis of plasma amino acid imbalance” include A: Valine, leucine and isoleucine B: Valine, leucine and tyrosine C: Leucine, isoleucine and phenylalanine D: Tyrosine and phenylalanine E: Valine, tyrosine and phenylalanine
- Polylines are much more complex than lines，construction lines and ray lines.
- Carotenoids belong to a parent class of molecules called flavonoids synthesized via the phenylpropanoid pathway.
- 34.Actually, personalities are__________ than this. A: complex B: complexing C: more complex D: more complexly
- Which of the following call be inferred from the passage about cotton production in the United States after the introduction of Whitney's cotton gin（） A: More cotton came from sea island cotton plants than befor B: More cotton came from short-staple cotton plants than befor C: Most cotton produced was sold domesticall D: Most cotton produced was exported to Englan