Describe the major structural differences between membranes of Bacteria and Archaea.
Answer to relevant QuestionsCells of Escherichia coli take up lactose via lac permease, glucose via the phosphotransferase system, and maltose via an ABC- type transporter. For each of these sugars describe: (1) the components of the transport system ...Why are amino acids so named? Write a general structure for an amino acid. What is the importance of the R group to final protein structure? Why does the amino acid cysteine have special significance for protein structure? A structure commonly seen in circular DNA during replication is the theta structure. Draw a diagram of the replication process and show how a theta structure could arise. Describe a habitat where you would find a psychrophile, and one where you would find a hyperthermophile. How can these organisms survive under such harsh conditions? How do cells of Escherichia coli that carry a mutation in mreB ( the gene encoding the protein MreB) look different microscopically from wild- type ( unmutated) cells? What is the reason for this?
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