17. The role of Voltage Sensitiveli o goltage gated) Na Channeis (n nouron signa

Question

17. The role of Voltage Sensitiveli o goltage gated) Na Channeis (n nouron signaling) is: b)Initiation of depolarization b propagation an a of depolarization space from o Drelease I membrane of a neuron te membrane of next neur of neurotransmitter@Dnone of the ive (Neurotransmiter Gated) Na channels ( of depolarization 18. The role of Neurotran mifter Sensit heuron signating) Is ation of pace from an axonal mombrane of a neuron to dendrite membrane of nest neuron Enrelease of neurotransmitter to synapsenone of those 19. The synapse (in neuron signaling) is@Initiation of dopolarization of depolarization from an axonal membrane of a neuron to de membrane of next neuron Erelease of neurotransmitter to synapse e none 20. The role of secretion( or exocylosis) in neuron to neuron s signaling is:)Initiation of from an axonal mémbrane r to depolarization b)propagation of depolarization of a neuron to dendrite membrane of next neuron release of neur synapsee) none of these 21. What structures are found in the cytoplasm, near the plasma membrane, at the Neurotransmitter axonal end of neuronan)voltage sensitive Na" channels Receptors Secretory vesicles mitochondria nucieu 22. What protein is found (evenly distributedT along the entre ngth of the cells plasma membrane (a)Voltage sensitive Na. channels- Neurotransmitter Receptors Secretory vesicles@nucleusO)mitochondría 23. Proteins found exclusively at the dendritic end of the neuron a) Voltage sensitive Na' channels D)Neurotransmitter Receptors )Secretory vesicles nucleus mitochondri 24. What lipid is the major component of the plasma membrane )long chain fatty acyls steroldsphospholiplds E)eminolipids@ none of the 25 Selective permeablity allows al biological membranes to be freely permeable to: a)CO2, Oz, H20 (b Na.. Cr, H2OC polymers glycerol and small nonpolar monomers(d)all 26. What is the name when the signal molecule that travels from the producer cell to the target cell through the circulatory system (in the bloods stream):)autocrine aracrine en docrine @exocrine eiduocrine 27.What is the name when signal molecules that are made by producer cells that are adjacent to target cell (cells are physically close to each other), and the signal molecules travel through (diffuses) the extracellular fluid that both producer and target cells share auto ocrin aracrine CDendocine dexocineeduocrine 28. What is the name when he producer and the target cell are same cell acrine endocrine exocrine duocrine 29. Which is responsible for establishing and maintalning the resting membrane otential of all cells Acetylcholine receptors Na'K ATPase epolarization potential d)buabain-Insensitive-Na /Ca" antipo in or out of cells to equilibriu of these om low to 30. Facilitated diffusion moves solute high concentrations@lat the expense of ATP@)atbtc none of these 31. Passive diffusion moves solutesa in or out of cells to equilbnium from low to high concentrations(@lat the expense of ATPatbro hone of thes

Explanation / Answer

Please find the answers below:

Answer 17: Choice a (opening of membrane bound sodium channels caused depolarization initiation and hence increases the membrane potential)

Answer 18: Choice b (The neurotranmitter sensitive sodium channels play a role in propagation of the impulse across the neuron and between two neurons by mediating a channel current of sodium and potassium ions. This mode of transmission is mostly seen in saltatory conduction)

Answer 19: Choice c (Synapse represents the physical gap between the ending of one neuron and starting axon of another neuron)

Answer 20: Choice d (exocytosis is mediated by clathrin-dependent or independent manners and hence neurotranmitters are transmitted out of the cells)

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