For a typical protein length of 300 amino acids, more than ______ different polypeptide chains could theoretically be made
举一反三
- 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
- In the process of protein digestion and absorption, the following form with the highest absorption efficiency is A: Dipeptide B: Amino acids C: Polypeptide D: Intact protein
- The spatial conformation of a protein mainly depends on A: α-helix and β-sheet B: the sequence of amino acids in polypeptide chain C: disulfide bonds in polypeptide chain D: hydrophobic effects in polypeptide chain E: hydrogen bonds in polypeptide chain
- 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
- Only protein contains amino acids in living organism.