
a.
To determine: The name of the phenomenon that explains the signal cascade for rhodopsin.
Introduction: Receptors are the structures that compose of proteins and promote binding of certain molecules that act as signaling molecules and bring changes in the functioning of the cell. The receptors are specific and allow the binding of molecules only from a specific family. There are three different ways in which receptors function namely amplification, integration, and relaying of the signal.
b.
To determine: The total number of GMP molecules that will be formed by a single rhodopsin molecule.
Introduction: Rhodopsin pigment is found in the rods of the retina, and it is highly sensitive to light. Hence, these cells play an important in visualization in the dark. Rhodopsin triggers a series of reactions and leads to photobleaching. Rhodopsin is important for visual phototransduction reaction in the rod cells.

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Chapter 6 Solutions
Human Physiology: An Integrated Approach (8th Edition)
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- The following figure is from Caterina et al. The capsaicin receptor: a heat activated ion channel in the pain pathway. Nature, 1997. Black boxes indicate capsaicin, white circles indicate resinferatoxin. a) Which has a higher potency? b) Which is has a higher efficacy? c) What is the approximate Kd of capsaicin in uM? (you can round to the nearest power of 10)arrow_forwardWhat is the rate-limiting-step for serotonin synthesis?arrow_forwardWhat enzyme is necessary for synthesis of all of the monoamines?arrow_forward
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