Question 16 of 40What components are or can be present in cellular passive transport? A. phospholipidsB. ATPC. concentration gradientD. carrier proteinsE. amphiphilic molecules Feedback: Correct Question 17 of 40You and your roommate are grocery shopping. “I don’t get it,” she says. “My doctorsaid I should buy this special milk because I don’t digest it well. But this brand says ‘lactose-free’and this brand says ‘lactase added’ – which do I want?”You reply: “The_______________ is a sugar in milk that you have trouble digesting, and_________________ is an enzyme that will digest it for you.
2.5/ 2.5 Points 2.5/ 2.5 Points 2.5/ 2.5 Points 2.5/ 2.5 Points Feedback: Correct! Question 18 of 40What examples describe the second law of thermodynamics? Select all that apply. Question 19 of 40What are actin filaments? Feedback: Correct Question 20 of 40Why does water boil at a higher temperature than butter, which is non-polar? A. breaking of hydrogen bonds requires a lot of energyB. removing hydrogen from the liquid requires a lot of enegyC. energy is used to cool the water as it undergoes from liquid to gasD. energy is consumed to form hydrogen bond Feedback: Learning Objective: Describe the properties of water that are critical to maintaining life Question 21 of 40_________________ prevent material from moving in or out of the brain’s capillaries
2.5/ 2.5 Points 2.5/ 2.5 Points 2.5/ 2.5 Points 2.5/ 2.5 Points 2.5/ 2.5 Points Feedback: Learning Objective: Summarize the roles of tight junctions, desmosomes, gap junctions, and plasmodesmata Question 22 of 40Hiking in the snowy woods, you peek inside a cave and encounter a hibernatinggrizzly bear! Its metabolic rate seems to be very low. What do you predict is the predominant type ofreaction occurring in this bear? Question 23 of 40Baking soda can be swallowed to combine with excess hydrogen ions. Baking sodaacts as a buffer.
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- Spring '14