Hyperpolarisation Study guides, Class notes & Summaries

HUBS 191 Nervous System Latest Update 100% Solved Resting membrane potential -70mV Open Voltage gated ion channels are ? at -60mV Inactive Voltage gated ion channels are ? at+30mV Na+ Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ Intercellular fluid has a high ? concentration and is therefore slightly negative in comparison to the ECF Depolarisation The change from a negative resting potential to a positive action poten...

Resting membrane potential - ️️-70mV Open - ️️Voltage gated ion channels are ? at -60mV Inactive - ️️Voltage gated ion channels are ? at+30mV Na+ - ️️Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ - ️️Intercellular fluid has a high ? concentration and is therefore slightly negative in comparison to the ECF Depolarisation - ️️The change from a negative resting potential to a positive action potential (caus...

HUBS 191 Nervous System Exam Questions and Answers |100% Verified and Updated 2024 Resting membrane potential -Answer--70mV Open -Answer-Voltage gated ion channels are ? at -60mV Inactive -Answer-Voltage gated ion channels are ? at+30mV Na+ -Answer-Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ -Answer-Intercellular fluid has a high ? concentration and is therefore slightly negative in comparison to the ECF Depolarisation -Answer-The ...

AQA A Level Topic 6 Organisms and response Stimulus A change in an organism's surroundings that causes the organism to react Receptor Detect stimulus. Specific to one type of stimulus. Effector an organ or cell that acts in response to a stimulus. Stimulus response pathway Stimulus - receptor - coordinator - effector - response taxis Movement toward or away from a stimulus. Direction of response determined by direction of the stimulus. positive taxis negative taxis Photota...

HBA FINAL EXAM PART A, Questions with answers, Rated A. 2022/2023 Document Content and Description Below HBA FINAL EXAM PART A, Questions with answers, Rated A. 2022/2023 Studying the function of the brain and spinal cord would best fall under which category? a. peripheral nervous system physiology b. central nervous system physiology c. organic physiology d. cellular physiology e. organic anatomy - b. central nervous system physiology Carbohydrates: a. are found in the nucleus of all cells b....

HUBS 191 Nervous System Exam Questions and Answers |100% Verified and Updated 2024 Resting membrane potential -Answer--70mV Open -Answer-Voltage gated ion channels are ? at -60mV Inactive -Answer-Voltage gated ion channels are ? at+30mV Na+ -Answer-Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ -Answer-Intercellular fluid has a high ? concentration and is therefore slightly negative in comparison to the ECF Depolarisation -Answer-The ...

AQA A Level Biology : Year 2- Nervous Coordination Graded A What is the value of the resting potential of a neurone? Why is the resting potential of a neurone negative? -70mV There are more positive ions outside the cell than inside How is the resting potential maintained? actively transports 3 Na+ out for ever 2 K+ into the neurone (ATP Hydrolysed) Sodium-potassium pump Membrane more permeable to K+ and less permeable to Na+ What happens if the sodium ion channels rema...

lOMoARcPSD| Practice Test 1. What is Homeostasis? The ability to maintain relatively stable internal conditions 2. What is a Receptor? Picks up the change in environment 3. What is the Control center? Analyses the input compares it with the normal input and determines the correct response 4. What is an Effector? Produces the response initiated by the control center 5. What does the negative feedback system do? The variable changes in the opposite direction to that of the initial cha...

2023 Practice Exam for AQA biology alevel paper 2(questions and answers) describe and explain the steps in the light dependent reaction of photosynthesis - CORRECT ANSWER-1. photoionisation: light reaches chlorophyll in PSII, which is absorbed by an electron, which becomes excited and moves to a higher energy level. 2. the electron passes to a carrier protein in the thylakoid membrane, and is passed down a series of carrier molecules called an electron transfer chain. 3. as the electron...

HUBS 191 Progress Test 1 Questions and Correct Answers.214 Questions and Answers. Complete Solution Updated 2024/2025. What makes up the axial skeleton? skull, vertebral column, rib cage What is recruitment? activating more motor units to make more force What are flat bones? Thin plates of compact bone - some cancellous What are flat bones used for? protection and muscle attachment What are irregular bones? Variable in shape size and function What is depolarisation? Membrane potent...