________________________________________ describes all of the processes that occur within the animal
Fill in the blank(s) with correct word
Metabolism
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An adipose (fat) cell responds to the presence of the hormone epinephrine by increasing cytosolic cyclic AMP production, which leads to the catabolism of both glycogen and fat. What is the most likely explanation for this phenomenon?
A. Cyclic AMP-dependent protein kinase activates two kinds of enzymes. B. Cyclic AMP directly activates enzymes that catabolize glycogen and fat. C. Epinephrine is binding to two types of receptors in the plasma membrane. D. The activated receptor complex stimulates production of two different second messengers.
When myosin moves along the actin, it goes through cycles of binding and releasing (duty cycle). How does myosin keep from losing its place on the actin when it releases?
A) The time of the duty cycle is large (.99) so that it is only unattached a short time. B) The myosin is still attracted to the actin by weak electrostatic forces that prevent it from moving too far away during release. C) The myosin is attached to the actin by another protein that it uses as a safety line to prevent it from slipping too far back. D) The myosin is arranged in dimers so that when one releases, the other is bound.
Explain neural plasticity in the brain, in the context of recovery from injury.
What will be an ideal response?
How does a depolarizing graded potential lead to the propagation of action potentials?
What will be an ideal response?