True or False. Replace bold words to make statment true if false.
When two protein chains combine to form an active protein, the structural level is quaternary.
The peptide bonds that combine amino acids in a protein are ester bonds.
The dipeptide Gly-Lis is the same as the dipeptide Lis-Gly
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True or False. Replace bold words to make statment true if false. When two protein chains...
True or False. Replace bold words to make statment true if false. When two protein chains combine to form an active protein, the structural level is quaternary. The dipeptide Gly-Lis is the same as the dipeptide Lis-Gly
1.Under anaerobic conditions pyruvate is converted to acetly CoA True or false? 2.Expect for glycine, all of the amino acids in a protein have the D configuration. True or false? 3.The side chain of the amino acid lysine is -CH2-CH2-CH2-CH2-NH2. TO which category does this amino acid belong? 4. which statment below describes the primary structure of a protien? - peptide bonds join amino acids in a polypeptide chain? - two polypeptide chains are held together by hydrogen bonds and...
true or false. at physiological PH, nearly all amino acids have overall positive charge True False 1) At physiological pH, nearly all amino acids have an overall positive charge. 2) The dipeptide abbreviated as Gly-Lys is the same as the dipeptide abbreviated as Lys-Gly. tide 3) The peptide sequence Gly-Gly-Gly gives the primary structure of a tripeptide. 4) The u-helix is a secondary structure. 5) The triple helix of collagen is a tertiary structure.
1. What is the name for the dipeptide shown below 2. Label each as primary, secondary, tertiary, or quaternary 3. Indicate whether each is hydrophobic or hydrophilic: Ananine, Tyr, Lysine, V CH, O CH OH NH-CH=C-NHCHCOOH The protein folds into a compact structure stabilized by interactions between R groups. the combination of two or more protein molecules to form an active protein pleated sheet the peptide bonds between the amino acids the structural level achieved when hydrogen bonds form between...
True or false? True False Phenylalanine's side chain is more polar than tryptophan's or tyrosine's side chains. True False Almost all peptide bonds in proteins are in the trans configuration. True False In folded globular proteins, the side chains of hydrophobic amino acids are mostly buried in the interior of the protein. True False The peptides I-A-G-Y-L-S and S-L-Y-G-A-I are different molecules with different properties. True False Poly lysine will tend to form an alpha helix in solution at pH 6.8. True False Amyloidoses such as...
When you drink a cup of milk, what happens to the protein in the milk after it has been swallowed? To describe these processes, you must be able to use the vocabulary effectively. FILL IN THE BLANKS tripeptide is the active form of a digestive enzyme in the stomach that breaks polypeptide chains into smaller acid group polypeptides. dipeptide 2. Cleavage of proteins by pepsin in the stomach results in formation of which get broken down amino acids further in...
When you drink a cup of milk, what happens to the protein in the milk after it has been swallowed? To describe these processes, you must be able to use the vocabulary effectiv Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) Reset Help proteases is the active form of the digestive enzyme pepsinogen. portal vein , which get dipeptide 2. Cleavage of proteins by pepsin in the stomach...
Determine whether the sentences are true or false 27-( ) The only acidic amino acid is aspartic acid. 36-( ) The quaternary structure is physically very strong because many polypeptides are clustered together. 37-( ) The amino acid sequence consisting of I-V-V-F-V is judged to form a β strand. 38-( ) The amino acid sequence consisting of A-E-A-E-L-A-L-E is judged to form an α-helix. 39-( ) If the molecular weight of glycine is 75, the molecular weight of the peptide...
What happens when a primary structure forms a secondary structure? Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Terms may be used once, more than once, or not at all. Reset Help carboxylic acid a helix When atoms in the backbone of a protein or peptide form within a single or between chains, a secondary structure results. The two most common...
Question 5. Which of the following pairs of bonds within a peptide backbone show free rotation around both bonds? A) Ca-C and N-C B) C-O and N-C C) C-O and N-Ca D) N-C and Ca-C E) N-Ca and N-C Question 6. In the diagram below, the plane drawn behind the peptide bond indicates the: A) absence of rotation around the C-N bond because of its partial double-bond character. B) plane of rotation around the C-N bond. region of steric hindrance...