15. Which of the following glycans can be released from proteins using ?β-elimination? a. Complex N-linked glycans b. Glycosaminoglycans c. Mucin type O-glycans d Hyaluronic acid
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15. Which of the following glycans can be released from proteins using ?β-elimination?
16. Which of the following glycans are made by the addition of sugars to the reducing end of a growing glycan chain?
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- 1.One of the main sources of sphingosine in the body is in the cell membrane. What complication could arise from the biological synthesis of ceramide?1. What is the distinguishing structural feature of O-glycans? 2. What other prominent class of glycoproteins besides mucins is known for the presence of O-linked glycans?1. How would you demonstrate whether a GAG chain assembles from the reducing end versus the nonreducing end? 2. What factors can affect the fine structure of sulfated glycosaminoglycans in cells?
- 1. Explain why sucrose is non reducing sugar?8. When digesting a complex carbohydrate, water is added and, a simple sugar is obtained through which process? * A. Condensation B. Dehydration C. Hydrolysis D. Esterification1- What are 3 (arysulfatase B) synonyms? 2- what is the name of metabolic reaction/pathway in which the enzyme (aryaulfatase B) doing/function is the cell? 3- what disease may occur with the deficiency of arysulfatase B?
- 6. Why would the lack of lactase cause Carol so much distress? Where would the undigested lactose travel from the small intestine. a) what could the production of gas from the breakdown of sugar. 7) Are enzymes only important for digestion, as is the case with lactase? 8. Why would it be important to regulate the function of an enzyme at all? Please read the reading, and then answer the questions.Each of the following statements concerning penicillin is correct EXCEPT: a. Penicillin is a bacteriostatic drug because autolytic enzymes are not activated. b. Penicillin inhibits transpeptidases, which are required for cross-linking peptidoglycan. C. The structure of penicillin resembles that of a dipeptide of alanine, which is a component of peptidoglycan. D. An intact β-lactam ring of penicillin is required for its activity.1. Draw all the forms of Tyrosine at pH 10.5. I have the predominant form and the protonation and deprotonation values written out, but I'm not sure how to draw the other forms now. 2. Draw the peptide chain arginyl-alanyl-histidyl-cysteinyl-isoleucyl-asparagine at pH 7
- 6. When a concentrated alkali solution acts on the purine cycle, it breaks down? A. Ester group B. Imidazole nucleus C. Dioxopyrimidine nucleus D. Lactone cycle.2 If a protein is predominantly made up of aliphatic and aromatic amino acids, which of the following is most likely true about such protein? Select the correct responses): a. It is a protein with a net negative charge b. It is most probably a structural protein. c. It is a protein that is cationic in nature. d. It is a protein that is hydrophobic in nature. e. It is most probably a catalytic protein. f. It is a water-solube protein. g. It is most probably a carrier protein.1. Discuss the difference between an ⍺-D-glucose and a β-D-glucose. How can the structure of a monosaccharide affect its bioactivity?