cAMP cGMP receptor channels IP 3 DAG Question 54 0 1 point When calcium becomes

Camp cgmp receptor channels ip 3 dag question 54 0 1

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cAMP cGMP receptor-channels IP 3 DAG Question 54 0 / 1 point When calcium becomes available inside a cell, it comes from _______. extracellular fluid only intracellular storage only
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extracellular fluid and intracellular storage it is always available as a major cytosol cation none of the above Question 55 0 / 1 point Norepinephrine (NE) and epinephrine both bind to alpha receptors and elicit the same response. NE is therefore _____ of epinephrine. an agonist an antagonist a competitor an agonist and competitor an antagonist and competitor Question 56 0 / 1 point Which of the following gases is a vasodilator? O 2 He NO N 2 H 2 Question 57 0 / 1 point Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that prevents inflammation by inhibiting ___________.
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calmodulin lipoxygenase cyclooxygenase (COX) hydrogen sulfide (H 2 S) nitric oxide (NO) Question 58 0 / 1 point The diameter of a blood vessel is controlled by varying the rate of a single output signal. This observation is best described by which of Walter Cannon's postulates used to explain control of homeostasis? The nervous system has a role in preserving the "fitness" of the internal environment. Some systems of the body are under tonic control. Some systems of the body are under antagonistic control. One chemical signal can have different effects in different tissues. None of the above are correct. Question 59 1 / 1 point Which of the following represents the correct order of the steps in a reflex control pathway? stimulus → input signal → integrating center → sensor → output signal → target → response stimulus → sensor → input signal → integrating center → output signal → target → response stimulus → sensor → input signal → output signal → target → integrating center
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→ response Question 60 1 / 1 point Which of the following is more characteristic of the nervous system than the endocrine system? very rapid response uses both chemical and electrical signals very specific duration of action is very short all of the above are more characteristic of the nervous system Question 61 0 / 1 point An enzyme that catalyzes the breakdown of glycogen into glucose monomers might be named __________. glucose hexokinase sucrase glycogenase name cannot be predicted Question 62 0 / 1 point What is the final acceptor of electrons at the end of the electron transport chain? NADH ATP FADH 2 oxygen
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water Question 63 0 / 1 point When a molecule is transported via facilitated diffusion _____. transport increases linearly with the concentration gradient an input of energy is required there is a transport maximum because transport proteins are required there is no transport maximum it moves directly through the phospholipid bilayer Question 64 1 / 1 point Which of the following statements about the Na + /K + pump is FALSE? It transports Na + out of the cell and K + into the cell.
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