Bio 181 ASU Exam 3 Questions and Answers 100% Verified

Bio 181 ASU Exam 3 Questions and Answers 100% Verified T or F: Potassium ions are at high concentrations inside of cells, including neurons - answerTrue The action potential is a result of: - answerthe movement of ions The post-synaptic cell can be: - answerin glands, muscle cells and neurons Th resting potential of a neuron is - 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 - answerfalse T or F: Voltage gated ion channels open when a protein binds to the receptor - answerfalse T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells - answerfalse T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid - answerfalse In the motor end plate, the event that is the immediate trigger for exocytosis is - answercalcium ions T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion channel. - answerFalse T or F: Only pre-synaptic neurons are coated with myelin. - answerFalse T or F: When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - answerTrue T or F: Receptors are made from membrane-bound polyribosomes. - answerTrue The terminal web: - answeris a site of exocytosis T or F: Excitatory synapses cause depolarization of the post-synaptic cell - answerTrue T or F: The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. - answertrue