On a trip to Cozumel, you forget about Montezuma’s revenge a…

On a trip to Cozumel, you forget about Montezuma’s revenge and ask the nice waiter for ice. He promptly brings ice and you add it to your favorite soda. Pathogenic Escherichia coli in the rapidly melting ice cube, enters your stomach and finally your intestine where it normally colonizes and can cause infection. Which of the following adjustments might the bacterium make to maintain the same level of membrane fluidity in your intestine?

You are working in a biotech company that has discovered a d…

You are working in a biotech company that has discovered a drug. Experiments demonstrate that addition of the drug increases the affinity of LDL for cholesterol and prevents cholesterol from dissociating from the LDL receptor even in the acidic endosome. Which of the following is a reasonable prediction of what may happen when you add the drug to cells?