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- 4. Which one of the following is NOT a nonessential amino acid? A. Alanine B. Cysteine C. Proline D. Methionine 5. True / False: Protein digestion and absorption can take place in the small intestine A. True B. False 6. Which one of the following is not a good source of protein? A. rice B. meat C. fish D. dried beans E. poultry1. Effects of amino acid composition and sequence to protein folding3. Which of the following is an example of a conservative substitution. MARK ALL THAT APPLY. Group of answer choices lysine to aspartate valine to arginine glutamate to isoleucine phenylalanine to tyrosine tryptophan to glutamine
- 8. Loss of native conformation by a protein: a) is always reversible b) is always irreversible c) always causes a loss of function d) is always valence variableThe bonds that are broken down inside the proteasome are: a. Hydrogen bonds b. Ionic bonds c. Disulfide bridges d. Peptide bonds3. How many amino acids are there in the polypeptide (protein)?
- 2. The rising of nanotechnology paved way to discover new trends, one of which is the discovery of newly synthesized amino acid. Which of the following is a newly synthesized amino acid which was translated from the sequence of UAG? * A. Pyrrolysine B. Selenocysteine C. Threonine D. ProteoglycanMatch the amino acid description with their 3-letter abbreviation has the guanidino group on its side chain Has the phenolic group side chain is a methyl group Capable of forming a covalent bond Acidic amino acid A. Arg B. Tyr C. Ala D. Cys E. Asp F. Phe2- Some proteins contain additional amino acids that arise by modification of an amino acid already present in a peptide , examples include: a) Gamma Amino Butyric Acid. b) 5 - hydroxy Lysine c) 4 - hydroxy proline d) All of the above e) None of the above
- 4. Which of the following is the CORRECT pair of a protein and its function? * A. Hemoglobin: helps regulate blood sugar levels B. Actin and myosin: supplies amino acids to baby mammals C. Rhodopsin: provides strength and flexibility to connective tissues D. Enzymes: speed up reactions in the body and eventually used up in the process6. Please describe the events that may result in a mature protein not having methionine asthe N-terminal amino acid.1. Which type of proteins are also known as denatured proteins? A. Primary proteins B. Secondary proteins C. Conjugated proteins D. None of the above 2. High density lipoproteins is an example of which kind of protein? A. Regulatory proteins B. Conjugated proteins C. derived proteins E. none of the above