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Q1. The basic structural unit of a biomembrane is the phospholipid bilayer. Acetic acid and ethanol are each collected of two carbons, hydrogen and oxygen, and both enter cells by passive diffusion. At pH 7' one is much more membrane permeable than the other' that is more permeable and why? Calculate how the permeability of each is altered when the pH is reduced to 1.0, a value typical of the stomach.
Q2. Suppose that in particular protein made up of 564 amino acids, a lysine residue at position 17 is replaced by asparagine. Would you expect this change to demolish the function of this protein? Explain briefly.
Experts describe nursing as a cycle of nursing research, practice, and theory. Experts also propose that entry into this cycle can be made from any point. Explain your agree
When oxygen is unavailable, some cells use anaerobic(fermentation) pathways to make ATP. Another textbook saysregarding fermentation: "The final steps serve only toregenerate
List two types of macromolecules that have been partly digested by the time acid chyme moves into the intestine. Where did this digestion take place and what enzymes were invo
You have discovered a novel compound (U-500), which is an inhibitor of mitochondrial ATP synthesis. You observe that when U-500 is addedto cells or isolated mitochondria, th
Design an experiment in which I will test the effect of an acidic fluid on enzymatic activity. I need to an outline of how an acidic fluid will modify the outcome of an enzyma
At 4.00 rm L, an expandable vessel contains 0.864 rm mol of oxygen gas. How numerous liters of oxygen gas should be added at constant temperature and pressure if you require a
What is the controversy around the history of the discovery of the structure of DNA? Who do you think should receive credit? How does giving credit only to Watson and Crick
Why is it an advantage to the cell that enzymes that generate as well as break down hydrogen peroxide (catalase) are compartmentalized within the membrane-bound peroxisome?
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