Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 12.5, Problem 5CC
Summary Introduction
Proteins are made up of a chain of amino acids. There are 22 gene-encoded amino acids synthesized by the cell biological system. These amino acids are termed as non-essential amino acids Apart from this there are few amino acids which cannot be synthesized by the biological system and it should be supplied through an external source. Hence, they are called essential amino acids.
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Chapter 12 Solutions
Prescott's Microbiology
Ch. 12.1 - Prob. 1CCCh. 12.1 - Prob. 2CCCh. 12.1 - Prob. 3CCCh. 12.1 - Retrieve, Infer, Apply What is self-assembly? What...Ch. 12.3 - MICRO INQUIRY How might acetyl-CoA be used by the...Ch. 12.3 - Retrieve, Infer, Apply Briefly describe the three...Ch. 12.3 - Retrieve, Infer, Apply Which two enzymes are...Ch. 12.4 - Prob. 1MICh. 12.4 - MICROINQUIRY What is the difference between Lipid...Ch. 12.4 - Retrieve, Infer, Apply What is gluconeogenesis?...
Ch. 12.4 - Retrieve, Infer, Apply Describe the formation of...Ch. 12.4 - Retrieve, Infer, Apply Suppose a microorganism is...Ch. 12.4 - Retrieve, Infer, Apply Diagram the steps involved...Ch. 12.4 - Retrieve, Infer, Apply What would happen to a cell...Ch. 12.5 - Prob. 1MICh. 12.5 - Prob. 2MICh. 12.5 - Prob. 1CCCh. 12.5 - Prob. 2CCCh. 12.5 - Prob. 3CCCh. 12.5 - How do organisms assimilate sulfur? How does...Ch. 12.5 - Prob. 5CCCh. 12.5 - Prob. 6CCCh. 12.5 - Describe the glyoxylate cycle. How is it similar...Ch. 12.5 - Prob. 8CCCh. 12.6 - How is phosphorus assimilated? What roles do...Ch. 12.6 - Explain the difference between a purine and a...Ch. 12.6 - Outline the way in which purines and pyrimidines...Ch. 12.7 - Prob. 1CCCh. 12.7 - How are unsaturated fatty acids made?Ch. 12.7 - Briefly describe the pathways for triacylglycerol...Ch. 12.7 - Prob. 4CCCh. 12.7 - Activated carriers participate in carbohydrate,...Ch. 12 - Prob. 1RCCh. 12 - Prob. 2RCCh. 12 - Prob. 3RCCh. 12 - Prob. 4RCCh. 12 - Prob. 5RCCh. 12 - Prob. 6RCCh. 12 - Prob. 7RCCh. 12 - What would happen if a microorganism that depended...Ch. 12 - Intermediary carriers are in a limited supply:...Ch. 12 - Prob. 3AL
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- Are all amino acids degraded in the same pathway? Why?arrow_forwardWhich of the 20 amino acids can be synthesized directly from a common metabolic intermediate by a transamination reaction?arrow_forwardWhich three amino acids are substrates or products of serine hydroxymethyltransferase?arrow_forward
- a) Based on the mechanism shown in Figure 2A, what type of enzyme is transpeptidase? : Lyase Isomerase Ligase Hydrolase Oxidoreductase Transferase b) Transpeptidases have two substrates. From Figure 2A, what type of mechanism do they most likely adopt in processing the two substrates? sequential or ping-pong c) β-lactams inactivate transpeptidases by forming a covalent bond with the serine residue in the active site. Based on this description and Figure 2B caption, what type of inhibitor are β-lactams? _________________________________________ d) Based on the mechanism for lactamase shown in Figure 3, what type of enzyme is lactamase? Lyase Isomerase Ligase Hydrolase Oxidoreductase Transferase e) Based on your answer in d, what other reactant, in addition to the antibiotic substrate, needs to be in the active site of lactamase for the hydrolysis reaction to proceed? ____________________arrow_forwardIn the context of protein synthesis, what is meant by an activated amino acid?arrow_forwardWhat reaction does synthine aminotransferase catalyze? what are the precursors and products? why is it described as "ping-pong" reactionarrow_forward
- What is a major difference between the amino acid biosynthetic capacity of prokaryotic organisms and humans?arrow_forwarda) This molecule is produced when what amino acid is transaminated? b) What are the one- and three-letter abbreviations for this amino acid?arrow_forwardExplain how the g-glutamyl cycle acts to transport aminoacids across a membrane. How does the location of theg-glutamyl transpeptidase help drive this process?arrow_forward
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