(29) Two B-vitamins are shown below. Examine their structures in order to answer the related questions. но HO H но он H3C но- но. H- CH, 8 H,C. N. Vitamin B5 NH Pantothenic acid Vitamin B, Riboflavin a. Do one or both contain aromatic rings? Which one(s)? b. What is the longest straight carbon chain in either vitamin? c. Write the chemical formula for each vitamin. d. Would you consider these vitamins to be water-soluble or lipid-soluble? What characteristics or features support your answer? e. Does your answer to the previous question agree with the following information? Vitamins Bs and B2 are known to be more easily expelled in urine and so they need to be more frequently consumed in the diet or through supplements, unlike with vitamins A, D, E and K.

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(29) Two B-vitamins are shown below. Examine their structures in order to answer the related questions.
но
но
но
он
H3C
HO
но
NH
H-
CH3
Vitamin B5
NH
H3C
Pantothenic acid
Vitamin B,
Riboflavin
a. Do one or both contain aromatic rings? Which one(s)?
b. What is the longest straight carbon chain in either vitamin?
c. Write the chemical formula for each vitamin.
d. Would you consider these vitamins to be water-soluble or lipid-soluble? What characteristics or features support your answer?
e. Does your answer to the previous question agree with the following information? Vitamins Bs and B2 are known to be more easily expelled in urine and so they
need to be more frequently consumed in the diet or through supplements, unlike with vitamins A, D, E and K.
Transcribed Image Text:(29) Two B-vitamins are shown below. Examine their structures in order to answer the related questions. но но но он H3C HO но NH H- CH3 Vitamin B5 NH H3C Pantothenic acid Vitamin B, Riboflavin a. Do one or both contain aromatic rings? Which one(s)? b. What is the longest straight carbon chain in either vitamin? c. Write the chemical formula for each vitamin. d. Would you consider these vitamins to be water-soluble or lipid-soluble? What characteristics or features support your answer? e. Does your answer to the previous question agree with the following information? Vitamins Bs and B2 are known to be more easily expelled in urine and so they need to be more frequently consumed in the diet or through supplements, unlike with vitamins A, D, E and K.
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