When a protein is completely hydrolyzed will the further analyse: ( )
A: Only detect amino acids in S conformation
B: Often detect other molecules besides amino acids
C: Never detect more than 20 standard amino acids
D: Never detect fewer than 20 standard amino acids
E: Only detect the 20 standard amino acids
A: Only detect amino acids in S conformation
B: Often detect other molecules besides amino acids
C: Never detect more than 20 standard amino acids
D: Never detect fewer than 20 standard amino acids
E: Only detect the 20 standard amino acids
B
举一反三
- Proteins are large biological molecules consist of which of the following amino acids?: D-α-amino acids|D-β-amino acids|L- and D-β-amino acids|L-α-amino acids|L-β-amino acids
- Only protein contains amino acids in living organism.
- The final products of digestion are ? A: fatty acids, starch, glucose B: protein, amino acids, glucose C: protein, fat, carbohydrate D: glucose, amino acids, fatty acids
- The covalent bond between two adjacent amino acids in a protein chain is called a ___________; the chain of amino acids is also known as a polypeptide.
- The correct descriptions about peptide are A: A compound formed of two or more amino acids linked by peptide bonds. B: The amino acids that make up the peptides are residues. C: The peptide chain has amino terminus and carboxyl terminus. D: Oligopeptides less than 10 amino acids don’t have function.
内容
- 0
Only protein contains amino acids in living organism. A: 正确 B: 错误
- 1
Which of the following amino acids doesn’t belong to essential amino acids?? Methionine|Isoleucine|Valine|Cysteine
- 2
For a typical protein length of 300 amino acids, more than ______ different polypeptide chains could theoretically be made
- 3
Which is not essential amino acids? ( )
- 4
The structure of amino acids consists of an amino group, a carboxyl group, a hydrogen atom and an R group.