Leak channels - Study guides, Class notes & Summaries

PNB 2274 UCONN Exam 2 Tanner Questions And Answers Rated A+ Principles Electrostatic Attraction ANS - charge attraction - positively charged ions will be attracted to negatively charged ions Principles Chemical (diffusional) Gradients ANS - when a membrane is selectively permeable positively charged ions will flow to the one side making the other side negative due to leak channels. - making one side harder to diffuse with the outside of the cell because it is attracted to the more charg...

sodium potassium pump - ️️enzyme that transports 3 sodium to the outside, and it transports 2 potassium to the inside using the hydrolysis of ATP - creates more sodium outside and more potassium inside and creates a concentration gradient Midline, ipsilateral and contrelateral - ️️line separating left and right of the entire nervous system - ipsilateral means the same side of something and contralateral means the opposite side of something Nissl stain showed (Nissl) - ️️Nissl u...

Which ion has greatest influence on resting membrane potential? Potassium (potassium has more leak channels on the membrane than sodium, which is why potassium has a higher permeability value and has more impact of resting membrane potential) Concerning resting membrane potential, the inside of the membrane is _______ compared to the ________ charged outside. negative, positively. T or F: The diffusion of K+ and Na+ down their chemical gradients contributes to the resting membrane potenti...

IBHRE Exam Questions with Answers Functional Refractory Period (FRP) - Answer-the coupling interval which first results in a measurable degree of delay in impulse conduction effective refractory period - Answer-the longest coupling interval to be associated with block resting (transmembrane) potential - Answer-the voltage difference between the inside and outside of the cell fiber (negative inside cell) action potential - Answer-the cellular characteristics of depolarization and repol...

ap chpt 11know fig 11.1 - correct answer 11.3 - correct answer 11.5 - correct answer The resting membrane potential is maintained by Na+-K+ pumps that actively transport ? into and ? out of the cell. The membrane is more permeable to ?. The concentration of ? is higher outside than inside the cell. The concentration of ? is higher inside than outside the cell. - correct answer 1. k+, na+ 2. k+ 3. Na+ 4. k+ Ions are unequally distributed across the plasma membrane of all cell...

Mutually owned co-operative financial institutions offering benefits to members through a trust-like structure" describes which type of Insurer/Fund Manager? - Answer- Friendly Society Which is the decision-making process of framing? - Answer- To remove the 'noise' from an issue to allow us to see the problem for what it is Under the RG271 what is the maximum timeframes for IDR response for a Superannuation trustee complaints? - Answer- 45 days after receiving the complaint In the se...

BIOL 235 Midterm 2 Exam Questions and Answers Latest Updated 2024/2025 Graded A+. between the origin and insertion which is usually located proximally in limbs ? - Origin What happens during REVERSE MUSCLE ACTION? - specific movements of the body the actions are reversed THEREFOR the positions of the origin and insertion of a muscle are switched What is a mechanical advantage using the example of a lever? - if the load is closer to the fulcrum and the effort is farther from the fulcrum only ...

What does it mean when the plasma membrane of the neuron is polarized? - Answer - When there is a separation of charge across the membrane. Specifically, a polarized neuron is one where the inside is more negative and the outside is more positive. This is the state when the neuron is at rest. What gives rise to the gradient across the membrane? - Answer - The chemical and voltage gradients of potassium and sodium. Potassium wants to move from inside to outside. Sodium wants to move from out...

PNB 2XB3 Final UPDATED Exam Questions and CORRECT Answers Central Nervous System - CORRECT ANSWER- All parts within the spine and brain Brainstem - CORRECT ANSWER- Medulla, Pons, Midbrain Peripheral Nervous System - CORRECT ANSWER- Parts of the nervous system not within bone Cerebrospinal Fluid - CORRECT ANSWER- Fluid surrounding the neurons; contains ions Sodium Potassium Pump - CORRECT ANSWER- 2 K+ in, 3 Na+ out Negative Resting Potential - CORRECT ANSWER- K+ is greater inside than out...

Kin 1A03 McMaster Final Exam Review (2023/2024) 100% Pass excitation-contraction coupling AP from NS turns into muscle contraction -MAP propagated along sarcolemma into t-tubules -Ca+ channels in SR open and release into sarcoplasm -Ca+ binds to troponin and tropomyosin detaches -X bridge forms myofibril entire muscles length - series of sarcomeres state of each of the bands when muscle is relaxed vs contracted A band (all of myosin) H zone - only myosin I band - only actin A band doesn't ch...