The structure of FAD does not include: A) the vitamin nicotinic acid. B) a pyrophosphate bond....
The structure of FAD does not include:
A) the vitamin nicotinic acid.
B) a pyrophosphate bond.
C) riboflavin
D) an adenine nucleotide.
E) two ribose residues.
Homework Answers
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The structure of FAD does not include:
A) the vitamin nicotinic acid.
B) a pyrophosphate bond....
The structure below represents a NH2 N N N N НО. OH A) nucleic acid B)...
The structure below represents a NH2 N N N N НО. OH A) nucleic acid B) nucleoside. C) glycoside. D) nucleotide. E) riboside. The structural arrangement of DNA is A) -ribose---phosphate-ribose---phosphate — 1 base base B) -ribose -phosphate-ribose-phosphate 1 base base C) -deoxyribose-base-deoxyribose -base- 1 phosphate phosphate D) -deoxyribose---phosphate — deoxyribo se —-phosphate- base base E) — deoxyribose – phosphate-deoxyribose – phosphate — 1 base base The heterocyclic compounds adenine (A) and thymine (T) form base pairs in DNA via...
12. (a) Write the structure of Vitamin C (ascorbic acid). [1] (b) Show the structure of...
12. (a) Write the structure of Vitamin C (ascorbic acid). [1] (b) Show the structure of the specie which exist at pH 7.4. [1] (c) Show how this specie formed reacts with a free radical R.[1] (d) What two products are formed as a result? [1+1] (e) Show (with the help of a chemical equation) why the radical chain reaction does not proceed any further? [1] (1) Explain why Vitamin C acts as a radical scavenger? [1]
A niacin vitamin tablet specifies that each tablet contains 100 mg nicotinic acid. A student looking...
A niacin vitamin tablet specifies that each tablet contains 100 mg nicotinic acid. A student looking for extra credit in general chemistry lab asks the instructor if it is OK if the vitamin tablet is titrated to determine if the amount the manufacturer claims to be there is correct. Two tablets are crushed and combined, and together weigh 0.3813 g, and require 18.80 mL of 0.1000 M NaOH to titrate to the equivalence point. The ingredients list on the bottle...
The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the...
The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the ______ bases are synthesized separately and then coupled to ribose-5-phosphate via the C-N glycosidic bond. Select one: a. inosine : adenine b. inosine : uracil c. uracil : inosine d. uracil : adenine e. None of these
1.) What is the reduced form of flavin adenine dinucleotide? a. FAD+ b. FAD c. NADH...
1.) What is the reduced form of flavin adenine dinucleotide? a. FAD+ b. FAD c. NADH d. FADH2 e. none of the above 2.) The conversion of pyruvate kinase to pyruvate consumes one ATP. A. True b. False
2. Vitamin C is ascorbic acid. Yet, in the structure given in the Background, one does...
2. Vitamin C is ascorbic acid. Yet, in the structure given in the Background, one does not see a -COOH group. Instead, one sees a lactone in the structure. Circle the lactone. Explain from what functional groups it is formed, and how it is formed.
Which of the following vitamins would most likely accumulate in the body? A. Folic acid B....
Which of the following vitamins would most likely accumulate in the body? A. Folic acid B. Vitamin C C. niacin D. Vitamin A E. riboflavin
Matching A watch the vitamin in Colu COLUMNA Vitamin A A with the name in Column...
Matching A watch the vitamin in Colu COLUMNA Vitamin A A with the name in Column COLUMNS B. Ascorbic acid G. Betacarotene Vitamin Vitamin B Vitamin 6. Polic acid Niacin & Vitamin C Vitamin D 10. Vitamin E D. Thiaming Phytona Folate 6. Calciferol HL Tocopherol 1. Pyridoxine J. Cyanocobalamin K. Nicotinic acid 11. Vitamin Matching B description in Column B. Note that the de COLUMNB Water soluble B. Pat soluble watch the vitamin in Column A with the can...
Tertiary structure is maintained by Select one: o peptide bond o hydrogen bond o disulphide bond...
Tertiary structure is maintained by Select one: o peptide bond o hydrogen bond o disulphide bond o all of the above Myoglobin binding of oxygen depends on: Select one: O a. the oxygen concentration O b. the haemoglobin concentration O c. the affinity of myoglobin for the oxygen d. a) and c) e. a), b) and c) Amino acid residues commonly found in B-turns are: Select one: o alanine (Ala) and glycine (Gly). O two cysteine (Cys) residues. o proline...
Humans and guinea pigs are among the few species that can't synthesize A. ascorbic acid B....
Humans and guinea pigs are among the few species that can't synthesize A. ascorbic acid B. pantothenic acid C. thiamin D. riboflavin 2.A good source of beta carotene is A. mango B. sweet potato C. broccoli D. all the above 3.Berberi is the deficiency in what? A. niacin B. riboflavin C. thiamin D. folate 4.Which vitamin can only be found in animal foods? A. B6 B. B12 C. C D. B2 5.A deficiency of niacin results in A. pellagra. B....
The structure below represents a NH2 N N N N НО. OH A) nucleic acid B) nucleoside. C) glycoside. D) nucleotide. E) riboside. The structural arrangement of DNA is A) -ribose---phosphate-ribose---phosphate — 1 base base B) -ribose -phosphate-ribose-phosphate 1 base base C) -deoxyribose-base-deoxyribose -base- 1 phosphate phosphate D) -deoxyribose---phosphate — deoxyribo se —-phosphate- base base E) — deoxyribose – phosphate-deoxyribose – phosphate — 1 base base The heterocyclic compounds adenine (A) and thymine (T) form base pairs in DNA via...
12. (a) Write the structure of Vitamin C (ascorbic acid). [1] (b) Show the structure of the specie which exist at pH 7.4. [1] (c) Show how this specie formed reacts with a free radical R.[1] (d) What two products are formed as a result? [1+1] (e) Show (with the help of a chemical equation) why the radical chain reaction does not proceed any further? [1] (1) Explain why Vitamin C acts as a radical scavenger? [1]
A niacin vitamin tablet specifies that each tablet contains 100 mg nicotinic acid. A student looking for extra credit in general chemistry lab asks the instructor if it is OK if the vitamin tablet is titrated to determine if the amount the manufacturer claims to be there is correct. Two tablets are crushed and combined, and together weigh 0.3813 g, and require 18.80 mL of 0.1000 M NaOH to titrate to the equivalence point. The ingredients list on the bottle...
2. Vitamin C is ascorbic acid. Yet, in the structure given in the Background, one does not see a -COOH group. Instead, one sees a lactone in the structure. Circle the lactone. Explain from what functional groups it is formed, and how it is formed.
Matching A watch the vitamin in Colu COLUMNA Vitamin A A with the name in Column COLUMNS B. Ascorbic acid G. Betacarotene Vitamin Vitamin B Vitamin 6. Polic acid Niacin & Vitamin C Vitamin D 10. Vitamin E D. Thiaming Phytona Folate 6. Calciferol HL Tocopherol 1. Pyridoxine J. Cyanocobalamin K. Nicotinic acid 11. Vitamin Matching B description in Column B. Note that the de COLUMNB Water soluble B. Pat soluble watch the vitamin in Column A with the can...
Tertiary structure is maintained by Select one: o peptide bond o hydrogen bond o disulphide bond o all of the above Myoglobin binding of oxygen depends on: Select one: O a. the oxygen concentration O b. the haemoglobin concentration O c. the affinity of myoglobin for the oxygen d. a) and c) e. a), b) and c) Amino acid residues commonly found in B-turns are: Select one: o alanine (Ala) and glycine (Gly). O two cysteine (Cys) residues. o proline...
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