Name the three proteins that are important in maintaining the resting potential of a neuron
What will be an ideal response?
The resting potential is affected by the potassium channel, which may or may not be open, the sodium channel, which is typically closed, and the sodium-potassium pump, which uses energy to move ions across the membrane.
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The plasma membrane is composed mostly of ____
a. phospholipids b. cholesterol c. triglycerides d. steroids e. sphingolipids
The best terms for a fish whose body temperature varied between 4oC during the day when it is in deep, cold ocean waters and 26oC during the night when it comes to the surface to feed would be
A. ectothermic and endothermic. B. endothermic and homeothermic. C. ectothermic and homeothermic. D. ectothermic and heterothermic. E. endothermic and heterothermic.
Which of the following is a reason we should care about the extinction of species and work to conserve biological diversity?
A) moral responsibility B) economic benefits C) value of species as indicators of environmental quality D) value of species in maintaining ecosystem function E) all of the above
Microorganisms possess different means in order to avoid host immune components. Which of the following does not help microbe evade the host immune system?
A. Lysozyme B. Proteases C. Cross reactivity with the host D. Antigenic variation E. Capsule