what is the oxygenase activity of Rubisco? If you had an O=O molecule labeled with 18O...
what is the oxygenase activity of Rubisco? If you had an O=O molecule labeled with 18O in both positions where in the products of the glyoxylate pathway would the 18Os end up? Draw the structures and indicate where the label would be.
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what is the oxygenase activity of Rubisco? If you had an O=O
molecule labeled with 18O...
If an ester labeled in the carbonyl oxygen with 18O is reacted with aqueous NaOH, what...
If an ester labeled in the carbonyl oxygen with 18O is reacted with aqueous NaOH, what would be the result? Hint 1. How to reason this out In light of the addition-elimination mechanism, consider the fate of the tetrahedral intermediates formed in the reaction. ANSWER: Recovered ester would have less of the label than at the beginning of the reaction. The alcohol from the hydrolysis would contain the 18O label. Recovered ester would now have the 18O in the alkoxy...
3. You are given 90 mg of the following radioactively labeled carbohydrate, which contains a total...
3. You are given 90 mg of the following radioactively labeled carbohydrate, which contains a total of 3 uCi of 14C (14C = *). Draw the specific degradation pathway required to metabolize this molecule into a 3-Carbon subunit (pyruvate). Noting in this pathway we also incubated with a triose phosphate isomerase inhibitor (assume 100% inhibition). Specifically label the radioactive position(s) in the final product(s) and account for all radioactivity observed as this starting compound progresses through the pathway. Finally, calculate...
Question: You buy a sample of glucose that has the radioactive carbon-14 (C) isotope at the...
Question: You buy a sample of glucose that has the radioactive carbon-14 (C) isotope at the second position (Carbon #2). All other carbon positions in the glucose molecules have the "C isotope. "C is only a label and does not alter the biochemical behavior of the molecules in which it is found. This glucose sample is mixed with all the enzymes derived from liver cells, which initially contain no other C-labeled chemicals. A) Draw the Haworth structure of glucose and...
Need some help with these two questions. Thank you! 8. The bond indicated in the molecule...
Need some help with these two questions. Thank you!
8. The bond indicated in the molecule below can undergo homolytic and heterolytic cleavage. Draw the products for both pathways. Show correct mechanism arrows and label each pathway. (10 points) (ainoabstelle adoloso w olt. HM o bagnsballbunari arwoled slusalomat bosta 9. Arrange the leaving groups in the molecules below from best leaving group to worst leaving group. Assume CN is the nucleophile. Explain your ordering. (5 points)
The molecule shown below is chlorogenic acid, a component of coffee beans. When the ester linkages...
The molecule shown below is chlorogenic acid, a component of coffee beans. When the ester linkages in this acid break to form two different acid products. What are the products? coffee beans are roasted, structures of these acid OH Our textbook shows examples of radiolabeling experiments in the hydrolysis of labeled esters, but actually leaves out one of the most significant radiolabeling examples! If you had an ester labeled as shown below, what would the products of base-promoted hydrolysis be?...
1. Consider the following substituted alkanes. Indicate if the molecule would prefer to undergo an SN1...
1. Consider the following substituted alkanes. Indicate if the molecule would prefer to undergo an SN1 reaction, an reaction, BOTH S1/E1 or neither: -BOK 2. Briefly explain why you selected what you did for question 1a, 1b, and 1c. 3. Provide the missing reactant(s) or product(s) as necessary for the following Sy1 reactions. Be sure to use wedges/dashes to indicate stereochemistry where relevant. осн. HOCH,CH, heat 4. Draw the complete mechanism for the following reaction. Include all lone pairs, formal...
2) a) Consider the following molecule Given what you have learned about hybridization theory, draw an...
2) a) Consider the following molecule Given what you have learned about hybridization theory, draw an image or images explaining the bonding situation in this molecule. I want you to draw out all of the orbitals, hybrid orbitals and how they overlap to form the bonds in the molecule. Indicate the % sorp character in the given atomic and hybrid orbitals. Which CC bond or bonds are the longest? In a paragraph or so explain the image or images you...
1. If DNA polymerase III was going to attach a new nucleotide onto the DNA molecule shown to the right, where would it attach it? 2. Why are the ends labeled A and C different? a. The diagram is...
1. If DNA polymerase III was going to attach a new nucleotide onto the DNA molecule shown to the right, where would it attach it? 2. Why are the ends labeled A and C different? a. The diagram is drawn incorrectly, they should be the same One is o pure onsa pyrimidine. c. One is a purine, one is a pyrimidine d. Double-stranded DNA is antiparallel. e. This is after DNA replication -before DNA replication, they look the same. 3....
Questions 7-15 The molecule is ethane 71 2 O ACTIVITY 1.2.1 Biological Macromolecules in 3-D 7....
Questions 7-15 The molecule is ethane
71 2 O ACTIVITY 1.2.1 Biological Macromolecules in 3-D 7. Orient the two molecules so that portions of the mo lecules that would normally form intermolecular bonds lie next to each other. In this activity, you will build molecular models of biologically important molecules using ball-and-spring molecular model 1) What intermolecular forces help to hold these mo- building kits and then you will view these and other molecules lecules together! of interest using computer-generated...
2. Use the molecule below to answer questions 21-2d. Ong NH2 in HOSN o dohop e...
2. Use the molecule below to answer questions 21-2d. Ong NH2 in HOSN o dohop e Tolon OCHS NH o=p-O b clum OH olson be views OOCH3 od bono (nog) Octo O=P-O OH | 0 O=p-O D r ew bigodarodontol O (no onero O HO o=po -O NH2 Онон 20. What type of molecule is this? There are 2 ways to describe this and I am looking for both names. (2 points) Nuulic Acid, RNA 2b. Label each of the...
3. You are given 90 mg of the following radioactively labeled carbohydrate, which contains a total of 3 uCi of 14C (14C = *). Draw the specific degradation pathway required to metabolize this molecule into a 3-Carbon subunit (pyruvate). Noting in this pathway we also incubated with a triose phosphate isomerase inhibitor (assume 100% inhibition). Specifically label the radioactive position(s) in the final product(s) and account for all radioactivity observed as this starting compound progresses through the pathway. Finally, calculate...
Question: You buy a sample of glucose that has the radioactive carbon-14 (C) isotope at the second position (Carbon #2). All other carbon positions in the glucose molecules have the "C isotope. "C is only a label and does not alter the biochemical behavior of the molecules in which it is found. This glucose sample is mixed with all the enzymes derived from liver cells, which initially contain no other C-labeled chemicals. A) Draw the Haworth structure of glucose and...
Need some help with these two questions. Thank you!
8. The bond indicated in the molecule below can undergo homolytic and heterolytic cleavage. Draw the products for both pathways. Show correct mechanism arrows and label each pathway. (10 points) (ainoabstelle adoloso w olt. HM o bagnsballbunari arwoled slusalomat bosta 9. Arrange the leaving groups in the molecules below from best leaving group to worst leaving group. Assume CN is the nucleophile. Explain your ordering. (5 points)
The molecule shown below is chlorogenic acid, a component of coffee beans. When the ester linkages in this acid break to form two different acid products. What are the products? coffee beans are roasted, structures of these acid OH Our textbook shows examples of radiolabeling experiments in the hydrolysis of labeled esters, but actually leaves out one of the most significant radiolabeling examples! If you had an ester labeled as shown below, what would the products of base-promoted hydrolysis be?...
1. Consider the following substituted alkanes. Indicate if the molecule would prefer to undergo an SN1 reaction, an reaction, BOTH S1/E1 or neither: -BOK 2. Briefly explain why you selected what you did for question 1a, 1b, and 1c. 3. Provide the missing reactant(s) or product(s) as necessary for the following Sy1 reactions. Be sure to use wedges/dashes to indicate stereochemistry where relevant. осн. HOCH,CH, heat 4. Draw the complete mechanism for the following reaction. Include all lone pairs, formal...
2) a) Consider the following molecule Given what you have learned about hybridization theory, draw an image or images explaining the bonding situation in this molecule. I want you to draw out all of the orbitals, hybrid orbitals and how they overlap to form the bonds in the molecule. Indicate the % sorp character in the given atomic and hybrid orbitals. Which CC bond or bonds are the longest? In a paragraph or so explain the image or images you...
1. If DNA polymerase III was going to attach a new nucleotide onto the DNA molecule shown to the right, where would it attach it? 2. Why are the ends labeled A and C different? a. The diagram is drawn incorrectly, they should be the same One is o pure onsa pyrimidine. c. One is a purine, one is a pyrimidine d. Double-stranded DNA is antiparallel. e. This is after DNA replication -before DNA replication, they look the same. 3....
Questions 7-15 The molecule is ethane
71 2 O ACTIVITY 1.2.1 Biological Macromolecules in 3-D 7. Orient the two molecules so that portions of the mo lecules that would normally form intermolecular bonds lie next to each other. In this activity, you will build molecular models of biologically important molecules using ball-and-spring molecular model 1) What intermolecular forces help to hold these mo- building kits and then you will view these and other molecules lecules together! of interest using computer-generated...
2. Use the molecule below to answer questions 21-2d. Ong NH2 in HOSN o dohop e Tolon OCHS NH o=p-O b clum OH olson be views OOCH3 od bono (nog) Octo O=P-O OH | 0 O=p-O D r ew bigodarodontol O (no onero O HO o=po -O NH2 Онон 20. What type of molecule is this? There are 2 ways to describe this and I am looking for both names. (2 points) Nuulic Acid, RNA 2b. Label each of the...
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