Bio 181 study guide - Study guides, Class notes & Summaries

When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - ANSWER TRUE Briefly explain why the action potential flows only from the axon hillock to the terminal web. - ANSWER During the course of an action potential there is a refractory period that makes sure the action potential can't trigger backwards by the use of caps on gated sodium channels. The caps close and keeps the action potential flowing in one direction. How do the glial cells (i.e., m...

Bio 181 Exam 3 Study Guide Updated with All Questions from Actual Past Exam and 100% Correct Answers from Expert

Bio 181 Exam 1 Study Guide Solutions ATP - ANSWER-(adenosine triphosphate) main energy source that cells use for most of their work Cancer - ANSWER-any malignant growth or tumor caused by abnormal and uncontrolled cell division Cell - ANSWER-(biology) the basic structural and functional unit of all organisms Cell theory - ANSWER-(biology) the theory that cells form the fundamental structural and functional units of all living organisms Cell wall - ANSWER-a thin membrane around the cytoplas...

Bio 181 Lab Midterm Study guide (GCU)

1 BIO 181 EXAM 3 STUDY GUIDE: 1. Receptors are made from membrane-bound polyribosomes. 2. Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to start the action potential in the postsynaptic cell. 3. The axon from a pre-synaptic cell contacts the axon of another neuron. 4. In the motor end plate, the event that is the immediate trigger for exocytosis is: Calcium Ions 5. The receptors in post-synaptic cells are the basis on which the synapse can be ...

ASU BIO 181 Exam 3 Study Guide 2023 Questions with Answers (Verified) The post-synaptic cell can be: - ANSWER In glands, muscle cells, neurons T/F Excitatory synapses cause depolarization of the post-synaptic cell. - ANSWER True T/F Only pre-synaptic neurons are coated with myelin. - ANSWER False T/F Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that results in a myelin coating. - ANSWER False T/F The axon from a pre-synaptic cell contac...

ASU BIO 181 Exam 3 Study Guide 2023 (Questions with Answers 100% Correct) T/F Excitatory synapses cause hyperpolarization of post-synaptic cells. - ANSWER False The resting potential of neurons is: - ANSWER -60 mv (The answer is not on this list.) T/F The autonomic nervous system contains the sympathetic and the parasympathetic nervous system. - ANSWER True In the motor end plate, the event that is the immediate trigger for exocytosis is: - ANSWER Calcium Ions Draw an action potential in...