What electrolyte causes depolarization by movement into the cell<\/p>\n\n\n\n
The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n The electrolyte that causes depolarization by moving into the cell is sodium (Na\u207a)<\/strong>.<\/p>\n\n\n\n Depolarization is a crucial process in the functioning of excitable cells, such as neurons, muscle cells, and cardiac cells. It refers to a change in the cell’s membrane potential from its resting state, making it more positive. This change is primarily driven by the movement of specific ions across the cell membrane.<\/p>\n\n\n\n The resting membrane potential of a cell is typically negative, with the inside of the cell being more negatively charged compared to the outside. This resting state is mainly maintained by the sodium-potassium pump (Na\u207a\/K\u207a ATPase)<\/strong>, which actively transports sodium ions out of the cell and potassium ions into the cell. This pump ensures that there is a high concentration of sodium outside the cell and a high concentration of potassium inside.<\/p>\n\n\n\n When the cell receives a stimulus (such as an action potential), voltage-gated sodium channels<\/strong> open, allowing sodium ions (Na\u207a) to flow into the cell. The influx of sodium ions, which are positively charged, causes the inside of the cell to become less negative (more positive). This shift in voltage is what is called depolarization<\/strong>.<\/p>\n\n\n\n The depolarization process is crucial for the transmission of electrical signals in neurons and the contraction of muscle fibers. In neurons, depolarization spreads along the axon as an action potential, leading to the release of neurotransmitters at synapses. In cardiac and skeletal muscle cells, depolarization triggers contraction.<\/p>\n\n\n\n After depolarization, the cell must return to its resting potential. This is achieved by the opening of potassium channels, which allow potassium (K\u207a) to exit the cell, restoring the negative charge inside the cell, a process known as repolarization<\/strong>.<\/p>\n\n\n\n In summary, the influx of sodium ions (Na\u207a) into the cell is the primary cause of depolarization, playing a critical role in the function of excitable cells in the body.<\/p>\n","protected":false},"excerpt":{"rendered":" What electrolyte causes depolarization by movement into the cell The Correct Answer and Explanation is : The electrolyte that causes depolarization by moving into the cell is sodium (Na\u207a). Explanation: Depolarization is a crucial process in the functioning of excitable cells, such as neurons, muscle cells, and cardiac cells. It refers to a change in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-164950","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/164950","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=164950"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/164950\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=164950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=164950"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=164950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n