BIOL 348 WVU EXAM 1 QUESTIONS AND 100% APPROVED CORRECT ANSWERS GRADED A+ 2025 FIRST CLASS PASS

BIOL 348 WVU EXAM 1 QUESTIONS AND 100% APPROVED CORRECT ANSWERS GRADED A+ 2025 FIRST CLASS PASS 2025 EXAM  BIOL 348 WVU EXAM 1 QUESTIONS AND 100% APPROVED CORRECT ANSWERS GRADED A+ 2025 FIRST CLASS PASS Graded Potentials - CORRECT ANSWER small changes in voltage over space and time 4 Functions of Glia - CORRECT ANSWER 1. Structural integrity 2. Metabolism of NTs/waste 3. Critical periods (stepping stones from one location to the next) 4. Electrical insulation Cytoskeletal protein functions (3) - CORRECT ANSWER 1. Structural support for neuronal morphology 2. Scaffolding for protein localization 3. Platform for transportation Microtubules are located in... - CORRECT ANSWER axons an dendrites Microtubules consist of... - CORRECT ANSWER hollow alpha/beta tubulin dimers. Alpha and beta give directionality because they repel each other Functions of Microtubules - CORRECT ANSWER Path for transport to the membrane, dynamic instability (GTP to grow, GTP hydrolysis to decay), supports broader/large structural changes Microtubule-associated proteins (MAPs) - CORRECT ANSWER Tau proteins (4 MT binding domains) that stabilizes MTs in a dephosphorylated state to prevent catastrophe Where are actin microfilaments located in a neuron? - CORRECT ANSWER Axons and dendrites Functions of actin microfilaments - CORRECT ANSWER - supporting fine processes - small structural changes - scaffold for protein localization - Path for transport to the membrane Where are intermediate filaments located in a neuron? - CORRECT ANSWER Mostly axons Intermediate filaments consist of... - CORRECT ANSWER 4 alpha helices with C- and N- terminal head domains Functions of Intermediate filaments - CORRECT ANSWER - assembles and disassembles quickly - develops/regenerates axons