Question

The pancreatic B cells that release insulin have potassium channels that close when ATP levels are high. How does closing potassium channels lead to exocytosis of insulin (Hint: it's the same mechanism as in neurons.) A Question 4 (2 points) Voltage-gated sodium channels need to inactivate, but voltage-gated potassium channels do not. Why? Question 5 (1 point) The convergence of two primary sensory neurons onto a secondary neuron is an example of temporal summation spatial summation