Gated channels - Study guides, Class notes & Summaries

BIOS-252: | BIOS 252 ANATOMY & PHYSIOLOGY II WITH LAB PRACTICE TEST 48 WITH CORRECT MARKING SCHEME When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance C. Fulcrum. Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? A. Ligand-gated Ca++ channe...

Phosphatase correct answers This myosin-actin interaction forms the basis of the cross-bridge cycle (CBC), which causes muscle contraction, as in skeletal -bridge cycling (CBC) requires phosphorylation of the myosin light chain (LC20). A .............. is an enzyme that removes a phosphate group from its substrate composed of actin and are dynamic and are lengthen by polymerization or shortened by depolarization correct answers microfilaments are provide strucule support for the cell ...

Neuron Structure - dendrites, cell body, axon dendrites - short, highly branched signal receptive regions of the nerve cell. Convey incoming message toward cell bodies each nerve cell (neuron) has only one - axon axon - impulse generating and conducting region of neuron myelin sheath - Whitish fatty protein layer that protects and electrically insulates the axon. Increases the speed of transmission of nerve impulses myelin sheath is only associated with - axons, not dendrites what determ...

Exam 2: BIO1201/ BIO 1201 Study Guide (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: transport proteins allow passage of hydrophilic substances across the membrane Q: carrier proteins Answer: bind to molecules and change shape to shuttle them across the membrane Q: passive transport Answer: the diffusion of a substance across a membrane with no energy investment Q: Diffusuion Answer: Spreading out of partic...

NURS 5315 Advanced Patho Exam 1 with Complete Solutions Steps of the Action Potential Correct answer Depolarization Repolarization Hyperpolarization Depolarization Correct answer movement of the intracellular charge towards zero (more positive charge) Voltage gated Na channels open and allow Na to enter the cell -> voltage inside the cell moves towards zero Repolarization Correct answer Once the intracellular charge reaches zero, the negative polarity of the inside of the cell i...

LIFSCI 7B XL - Animation: Reading Phylogenies Copy Questions and Answers Rated A+ What is the role of the axon hillock in neural signaling? The axon hillock integrates incoming signals and determines whether to initiate an action potential. How does myelination affect the speed of action potential propagation along an axon? Myelination increases the speed of action potential conduction by enabling saltatory conduction, where the signal jumps between nodes of Ranvier. Why do vo...

Straighterline A&P II Quiz 2 Latest Version Graded A+ What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left atrium. c. right ventricle. d....

NSG 531 Advanced Pharmacology Exam 3 Questions With Correct Answers Latest Updated 2024/2025 / Graded A+. what is the difference between cardiac myocyte action potential and that of the CNS or ANS? - ANSWER nerve cell action potential is very short cardiac action potential is much longer they are longer to have adequate filling time in order to get a good contraction for a reasonable bolus of blood the only way this can happen is if the action potential is longer this will also mean that t...

Action potentials are first generated at the axon hillock because this is where a high concentration of _______ are located. a. non-gated K+ channels b. voltage-gated Na+ channels c. transporters d. Na+/K+ pumps - ANSWER b

BIOS 252 COMP EXAM QUESTIONS AND ANSWERS 100% VERIFIED. When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance - correct answer. C. Fulcrum. When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance - correct answer. C. Fulcr...