Question

1. Which of the following occurs last in the sequence of light transduction?

   		Glutamate release is attenuated
   		11-cis retinal is converted to 11-trans retinal
   		Photoreceptor cells depolarize
   		GMP levels rise

1. Simulation of the _______ region of the basilar membrane will convey low pitch information through cranial nerve ____?

2. Simulation of the _______ region of the basilar membrane will convey low pitch information through cranial nerve ____?

   		Base: 9
   		Apex: 8
   		Apex: 9
   		Base: 8

3. Where would you find the highest concentration of horizontal cells?

   		Inner segments
   		Bipolar layer
   		Outer segments
   		Inner Plexiform layer

4. CHRM2 (M2 receptor) is expressed in cardiac muscle and pacemaker cells of the heart. What will occur to intracellular signaling networks when M2 receptors are active?

   		Increased PKC activity
   		Higher levels of cAMP
   		Increased Adenylate Cyclase activity
   		Decreased PKA activity

Answer 1