Bio 181 ASU exam 3 with complete solutions

Bio 181 ASU exam 3T or F: Potassium ions are at high concentrations inside of cells, including neurons - correct answer True The action potential is a result of: - correct answer the movement of ions The post-synaptic cell can be: - correct answer in glands, muscle cells and neurons Th resting potential of a neuron is - correct answer -60mV T or F: The cell body refers to the part of the neurons that begin at the dendrites and extend to the axon terminal - correct answer false T or F: Voltage gated ion channels open when a protein binds to the receptor - correct answer false T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells - correct answer false T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid - correct answer false In the motor end plate, the event that is the immediate trigger for exocytosis is - correct answer calcium ions T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion channel. - correct answer False T or F: Only pre-synaptic neurons are coated with myelin. - correct answer False