ur fine theres no way hsc will be this niche and weird with a million 7 marker questions youll probably get like 85 raw idk u im just guessing might scale to band 6 youll be fine
its not a big part of the syllabus tbh just know that sodium goes in (depolaarisation) and potassium goes out thru the membrane (repolarisation). sodium amkes it psoitive, and potassium gets it back to being negtaively charged. but beacause of this the cell becomes hyperpolarised (too...
jokes here i feel bad: "
An action potential is an electrical impulse that allows neurons to transmit signals over long distances. The process begins with the depolarization of the neuron membrane. When a neuron receives a stimulus, voltage-gated sodium (Na⁺) channels open, allowing Na⁺ ions to...