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Penicillin is an irreversible inhibitor of the transpeptidases, enzymes that cross-link components of the bacterial cell wall. The cell wall is thus fragile and the bacteria die.
Penicillin and its derivatives are structural analogs of the natural substrates of these enzymes.
Why doesn't penicillin normally kill humans, unless a severe allergic reaction (anaphylaxis) develops? How does penicillin inhibit transpeptidase (what kind of inhibitor is it)?
eukaryotic cells are the most structurally advanced of the major cell types. describe the structure and function of
The same domains and/or motifs are found in many proteins. In fact, a protein's tertiary structure is more conserved (stays the same or same over many generations) than its amino acid structure.
Draw a graph which indicates the relationship between power output and oxygen consumption (exact numbers are not required; label axes and include units).
In quest to produce a perfect rose, you have crossed two related species, a rose that has extra large booms and a cold resistant rose. you have been successful producing a rose buch that survives cold temps and continuous blooming.
What is the phenotypic ratio for the F2 generation? Demonstrate the work, including your key. what are Harry and Sally's blood types? Show your work. What if blood typing exposed Harry had type O blood.
Two common blisters of the integument are watery blisters, filled with a clean fluid, and blood blisters, filled with blood. Based on your knowledge of the blood supply to the integument, describe what layer might be damaged in the these two blist..
The purpose of this activity is to learn how to graph tidal data from locations in the United States and to interpret your results.
q1. an alien dna- like molecule is isolated from frozen remains of a life- form found beneath the martian polar ice
The elongation of the leading strand during DNA synthesis
Draw a restriction map of the plasmid. Label the respective restriction sites (H and E for HindIII and Eco RI respectively) and indicate the distances between each of the fragments.
What is carbohydrate loading, and why do marathon runners eat past adinners the night before a big race? What is the pentose phosphate pathway? When does it operate?
Briefly explain potential benefits(advantages) of a cell using a signaling pathway (like the glucagon – to- glycogenphosphorylase example we discussed in class) that consists of lots of steps involving many proteins.
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