Bio 181 ASU exam 4 questions with complete solution

Bio 181 ASU exam 4 questions with complete solution T or F: Potassium ions are at high concentrations inside of cells, including neurons - Correct Answers True The action potential is a result of: - Correct Answers the movement of ions The post-synaptic cell can be: - Correct Answers in glands, muscle cells and neurons Th resting potential of a neuron is - Correct Answers -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 Answers false T or F: Voltage gated ion channels open when a protein binds to the receptor - Correct Answers false T or F: Excitatory synapses cause hyperpolarization of post-synaptic cells - Correct Answers false T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid - Correct Answers false In the motor end plate, the event that is the immediate trigger for exocytosis is - Correct Answers calcium ions T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion channel. - Correct Answers False T or F: Only pre-synaptic neurons are coated with myelin. - Correct Answers False T or F: When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - Correct Answers True T or F: Receptors are made from membrane-bound polyribosomes. - Correct Answers True The terminal web: - Correct Answers is a site of exocytosis T or F: Excitatory synapses cause depolarization of the post-synaptic cell - Correct Answers True T or F: The membrane potential (resting potential) is largely set by the Na-K- ATPase pump. - Correct Answers true The neural tissues are: - Correct Answers spinal cord, sensory neurons and brain T or F: the axon from a pre-synaptic cell contacts the axon of another neuron - Correct Answers false T or F: The rece