Graded potentials are - Study guides, Class notes & Summaries

HUBS1416 PRACTICE EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Which of the following would be expected to inhibit the generation of an action potential? a) Inflammation of the myelin sheath b) Stimulating GABA receptors c) Blocking acetylcholine receptors d) Activating adrenalin receptors Correct Answer: b) Stimulating GABA receptors Which is true about neurons? a) At rest a neuron will have a negative membrane potential, due to it having more open K+ channe...

ASET CNIM Exam 2023 Questions With Correct Solutions Latest Update Graded A+. Resting membrane potential is created by differences between the inside and outside of the cell in ion concentrations of 1. K+ 2. K+ and Ca++ 3. K+, Na+ and Cl4. Na+, Ca++ and Cl- - Answer K+, Na+, and ClExcitation of the postsynaptic neuron is caused by the neurotransmitter 1. gamma amino butyric acid 2. glycine 3. para amino butyric acid 4. glutamate - Answer Glutamate Wave III of the BAER is generated by t...

NRSC 434 - EXAM 2 REVIEW QUESTIONS AND ANSWERS, GRADED A+/ What are the differences in the cellular mechanisms underlying short-term and long-term synaptic plasticity? (i.e. where do they occur, how do they occur, and what are their cellular mechanisms). - -Short-term synaptic plasticity (facilitation): Post-synaptic excitatory potentials change, and there are shorter time intervals between pre-synaptic action potentials Facilitation is caused by... - -calcium accumulation in pre-synap...

ASET CNIM Exam 2023 Questions With Correct Solutions Latest Update Graded A+.Resting membrane potential is created by differences between the inside and outside of the cell in ion concentrations of 1. K+ 2. K+ and Ca++ 3. K+, Na+ and Cl4. Na+, Ca++ and Cl- - Answer K+, Na+, and ClExcitation of the postsynaptic neuron is caused by the neurotransmitter 1. gamma amino butyric acid 2. glycine 3. para amino butyric acid 4. glutamate - Answer Glutamate Wave III of the BAER is generated by the...

WCU - PHYS 261 FINAL EXAM LATEST ANSWERS 2023. Nucleic acids are polymers of units called A) ribose. B) bases. C) fatty acids. D) amino acids. E) nucleotides. 6) Cell membranes are said to be A) actively permeable. B) impermeable. C) freely permeable. D) selectively permeable. E) none of the above 7) In humans, only __________ cells have flagella. A) sperm B) intestine lining C) stomach lining D) respiratory tract lining E) two of the above 8) The addition of a phosphate group ...

BIOL 235 Midterm 2 Exam Questions and Answers Latest Updated | Graded A+. 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 a small about of effort is needed to move the load Bones serve as levers and joints serve as ________ for the lever - fulcrum Agonist (Prime Movers) _________ muscles while antagonist ____________ muscles - contract, relax What are muscles that contract and stabilize the i...

Signals that affect nearby target cells after diffusing through interstitial fluid but not blood are... - Answer-paracrine signals The regulation of hear rate is an example of ____ control involving ____ signal-receptor combinations. - Answer-antagonistic; at least two Glucose enters the interstitial epithelial cells by _____ and exits those cells by ___. - Answer-secondary active transport; facilitated diffusion Steroid hormones initiate responses in target-cells by activating... - Answer...

Based on Question 5: Know the typical electrical and concentration/chemical gradients that exist across the plasma membrane of a neuron for Na+, K+ and Cl-. Based on these gradients, be able to state what direction each ion moves across the membrane - -[Na+]out >> [Na+]in -[K+]out << [K+]in -Differences maintained by Na+ K+ ATPase pump; 3 Na+ ions out, 2 K+ ions in, creates a net loss of positive ions -resting membrane potential is -50 to -80 mV -for K+ and Cl-, concentration and...

OCR A Level Biology Exam| Questions And Verified Answers With Complete Solutions| Graded A| 2024 Abiotic components Correct Answer Components of an ecosystem that are non living Abiotic factors Correct Answer Non living components of an ecosystem that effect other living organisms Acetycholine Correct Answer Chemical that acts as a transmitter that diffuses across synaptic cleft Acetycholinesterase Correct Answer Enzyme in synaptic cleft that breaks down acetycholine. After it has tr...

Bio 256 Actual Exam Questions with Correct Answers Signal Transduction Mechanisms - Answer-• Cell-‐cell contact signaling - important in normal development and immunity • Electrical signaling - voltage-‐gated ion channels in nerve and muscle tissue - Channel opens in response to a change in the membrane potential • Voltage across a membrane due to differential concentration and charges of ions inside/outside the cell • Chemical signaling - ligand gated ion channels dete...