What reaction is catalyzed by a b-lactamase enzyme? The biosynthesis of the penicillin structure from valine and cystein...
What reaction is catalyzed by a b-lactamase enzyme?
The biosynthesis of the penicillin structure from valine and cysteine
The hydrolysis of the acyl side chain present in penicillins
The hydrolysis of the four-membered ring present in penicillins
The final cross-linking reaction to form the bacterial cell wall
Homework Answers
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What reaction is catalyzed by a b-lactamase enzyme? The biosynthesis of the penicillin structure from valine and cystein...
You are studying an enzymatic reaction catalyzed by Lysozyme, an enzyme present in human mucous. Lysozyme...
You are studying an enzymatic reaction catalyzed by Lysozyme, an enzyme present in human mucous. Lysozyme is one of the first lines of defense against bacterial infection because it catalyzes the hydrolysis of glycosidic bonds present in bacterial cell walls. You discover that the overall DG for the reaction that you have set up containing peptidoglycan (a carbohydrate polymer that is a component of bacterial cell walls) and 5 nM Lysozyme is -50 kcal/mol. You now set up another reaction...
Need the solution Chapter 21 Homework ● Can you write down the pathway from glucose to fatty acid? What is the rate-limiting enzyme of fatty acid biosynthesis? Who can regulate it? Can you list th...
Need the solution
Chapter 21 Homework ● Can you write down the pathway from glucose to fatty acid? What is the rate-limiting enzyme of fatty acid biosynthesis? Who can regulate it? Can you list the four enzyme-catalyzed steps involved in fatty acid synthesis? And the full name of the four enzymes. precursors, coenzymes and energy should the cell prepare? kinds of enzyme does the cell need? synthesis O If the cell wants to synthesize the C16:0 fatty acids, how many...
2. What is the enzyme being tested? 3. What is the substrate if the enzyme? 4....
2. What is the enzyme being tested? 3. What is the substrate if the enzyme? 4. For what purpose do bacteria that have the enzyme utilize it? 6. What will occur if the plate is incubated right side up? 7. What will occur if the plate is incubated for more than 24-48 hours? Exercise 7: Selective and Differential Growth Medium and Tests 95 Exercise 7.9 Hydrolytic Exoenzymes: Lipase and Casease LIPASE TEST Lipids are fatty acids used by some bacterium...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
What is the primary method used by microbes to have water cross the membrane? Choose one:...
What is the primary method used by microbes to have water cross
the membrane?
Choose
one:
A. pumps
B. Membranes do not allow water into or out of cells.
C. diffusion
D. pinocytosis
E. aquaporins
Which of the following is the best example of an
extremophile?
Choose
one:
A. the facultative anaerobe Bacillus cereus
B. the Gram-negative plague-causing bacteria Yersinia
pestis
C. the hyperthermophile bacteria Methanopyrus
kandleri
D. the barotolerant bacterial strain DSK1
Of the reactions that involve reactive oxygen...
1. Bacteria such as E.coll and staph belong to which Domain? A. Animalia B. Eukarya C....
1. Bacteria such as E.coll and staph belong to which Domain? A. Animalia B. Eukarya C. Archaea D. Bacteria 2. In general terms, prokaryotic cells are cells that? A. Have a nucleus B. Do not have a nucleus. 3. Think about the name E. coli 4X56. In that name which refers to the serotype? A E B. coli C4X56 4. Which of the following best describes the type of bacteria that are important to ecology, and once were thought to...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
Need the solution
Chapter 21 Homework ● Can you write down the pathway from glucose to fatty acid? What is the rate-limiting enzyme of fatty acid biosynthesis? Who can regulate it? Can you list the four enzyme-catalyzed steps involved in fatty acid synthesis? And the full name of the four enzymes. precursors, coenzymes and energy should the cell prepare? kinds of enzyme does the cell need? synthesis O If the cell wants to synthesize the C16:0 fatty acids, how many...
2. What is the enzyme being tested? 3. What is the substrate if the enzyme? 4. For what purpose do bacteria that have the enzyme utilize it? 6. What will occur if the plate is incubated right side up? 7. What will occur if the plate is incubated for more than 24-48 hours? Exercise 7: Selective and Differential Growth Medium and Tests 95 Exercise 7.9 Hydrolytic Exoenzymes: Lipase and Casease LIPASE TEST Lipids are fatty acids used by some bacterium...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
What is the primary method used by microbes to have water cross
the membrane?
Choose
one:
A. pumps
B. Membranes do not allow water into or out of cells.
C. diffusion
D. pinocytosis
E. aquaporins
Which of the following is the best example of an
extremophile?
Choose
one:
A. the facultative anaerobe Bacillus cereus
B. the Gram-negative plague-causing bacteria Yersinia
pestis
C. the hyperthermophile bacteria Methanopyrus
kandleri
D. the barotolerant bacterial strain DSK1
Of the reactions that involve reactive oxygen...
1. Bacteria such as E.coll and staph belong to which Domain? A. Animalia B. Eukarya C. Archaea D. Bacteria 2. In general terms, prokaryotic cells are cells that? A. Have a nucleus B. Do not have a nucleus. 3. Think about the name E. coli 4X56. In that name which refers to the serotype? A E B. coli C4X56 4. Which of the following best describes the type of bacteria that are important to ecology, and once were thought to...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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