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Which one of the following statements about enzyme catalyzed reactions is FALSE?a. Enzymes lower the free energy change for the reactions they catalyze.b. Many enzymes change shape upon substrate binding.c. Enzymes form complexes with their substrates.
Robert, a smoker, is 52 years old. He has elevated blood pressure, in part, due to an elevated erythrocyte count. Knowing that smokers often have reduced plasma O2 levels, explain in detail (in a paragraph) why his erythrocyte count is elevated.
Why is DNA replication continuous on one strand and discontinuous on another strand?
What is a hierarchy? Are complex things built from simple parts? Give examples from everyday life.
chemosynthesis and fermentation are both ancient metabolic pathways and were probably used by some of the earliest life
CTP differs from UTP by a single nitrogen atom in place of oxygen on the pyrimidine ring. What serves as the source of the nitrogen atom in the reaction catalyzed by CTP Synthetase?
The Triton Lysis Buffer (TLB) you used to extract the cells in this experiment contains pepstatin, antipain and leupeptin (PAL). Why are these included in the lysis buffer?
Movement of glucose from one side to the other side of the intestinal epithelium is a major example of transcellular transport.
Describe why heritablility only applies to population (not individuals or species), and how heritability can change without any genetic change occurring.
Chemicals produced by virus infected cells that alert neighboring cells to prepare a defense are called A) antigens
How do structural differences affect cellular functions: (e.g. If plants don't have lysosomes, then how do they deal w/cleaning up intracellular debris or worn-out organelles? Why don't animal cells have cell walls?
Would you agree that this is a good way to disinfect mail? explain your answer. Which disinfectant methods would be both more effective and more practical?
A bacterial operon encodes enzymes needed to synthesize ahypothetical protein, Snk. When a second gene, mck, is mutated, nosnk is transcribed even in the presence of inducer. In the thirdgene, ops, mutation leads to constitutive Snk production. Ho..
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