Physioex Study guides, Class notes & Summaries

PhysioEx Exercise 6 Questions and Answers Graded A+

PhysioEx 4: Physiology Lab 4 Test 100% Correct

Neurophysiology of Nerve Impulses. Physioex 31. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. - correct answer Increasing the extracellular K+ reduces the steepness of the concentration gradient and so less K+ diffuses out of the neuron. 2. Explain why increasing the extracellular K+ causes the membrane potential to change to a less negative value. - correct answer The membrane potential became less negative because les...

Physioex Exercise 3 Activity 1-6 Questions And Answers | 100% Correct What is the approximate concentration of K+ inside a typical cell (intracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM 150 mM What is the approximate concentration of K+ outside a typical cell (extracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM 5 mM What is the approximate concentration of Na+ inside a typical cell (intracellular concentration)? a. 150 mM b. 5 mM c. 0 mM d. 15 mM 5...

Physioex 1 Quiz Complete Verified Solutions Graded A+ Which of the following is NOT a passive process? Osmosis Filtration Vesicular transport Facilitated diffusion Vesicular Transport When the solutes are evenly distributed throughout a solution, we say the solution has reached _______. Equilibrium Velocity Diffusion Permeability Equilibrium Which of the following does NOT describe the plasma membrane?

PhysioEx Exercise 7 question and answers graded A+ 2023D - correct answer Internal and external respiration depends on several factors. Which of the following is NOT an important factor in gas exchange? A) partial pressure of the gases B) rate of blood flow through the tissue C) available surface area D) the molecular weight of the gas D - correct answer During inhalation, A) the volume of the thoracic cavity decreases. B) the diaphragm relaxes. C) oxygen molecules move into the lu...

PhysioEx Activity 2 fully solved graded A+ 20231. Define the terms skeletal muscle fiber, motor unit, skeletal muscle twitch, electrical stimulus, and latent period - correct answer Skeletal muscle fibers: a long cylindrical cell with multiple oval nuclei just beneath its sarcolemma. Motor unit: consists of a motor neuron and all of the muscle cells it stimulates. Skeletal muscle twitch: a single stimulated contraction of whole skeletal muscle. Electrical stimulus: the elicitatin of ...

PhysioEX Exercise 4 correct answers rated A+ 2023 passed Which of the following statements about metabolism is false? - correct answer All of the energy from metabolism is ultimately stored in the chemical bonds of ATP. An injection of TSH to an otherwise normal animal will cause which of the following? - correct answer goiter development How would you treat a thyroidectomized animal so that it functions like a "normal" animal? - correct answer Provide the animal T4 supplements. As a...

PhysioEx Exercise 3 quiz with well answered questionsWhat is the approximate concentration of K+ inside a typical cell? - correct answer 150mM What is the approximate concentration of Na+ inside a cell? - correct answer 5mM What is the approximate concentration of Na+ outside a cell? - correct answer 150mM What is the approximate concentration of K+ outside a typical cell? - correct answer 5mM A negative membrane potential was recorded when the tip of the microelectrode was - correct...