Physioex Study guides, Class notes & Summaries

PhysioEx--Exercise 1 question well answered 2023 latestthe driving force for diffusion is - correct answer the kinetic energy of the molecules in motion. in diffusion, molecules move - correct answer from high concentration to low concentration. Which of the following dialysis membranes has the largest pore size? - correct answer 200 MWCO Avogadro's number is a constant for the number of - correct answer molecules. The reason sodium chloride didn't diffuse left to right is that - c...

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...

Neurophysiology of Nerve Impulses. Physioex 3 qestions with complete solutions 2024

Physioex 1 : Cell Transport Mechanism and Permeability 2023 already passedIf the molecular weight of urea is 60.07, will urea diffuse through a 20 MWCO membrane? - correct answer No Glucose is a six-carbon sugar. Albumin is a protein with 607 amino acids. The average molecular weight of a single amino acid is 135 g/mole. There is no reason to run these solutes at the 20 MWCO because - correct answer glucose and albunim are both too large to pass The rate of diffusion for urea - correct ans...

PhysioEx Exercise 11 question with complete solution graded A+ 2023 PASSED Oxygen is attached to _______. - correct answer an iron atom located on the heme portion of hemoglobin The oxygen-carrying capacity of the blood is evaluated using _______. - correct answer hematocrit measurements and hemoglobin measurements Release of which of the following hormones results in higher levels of erythrocytes? - correct answer testosterone and erythropoietin Which type of anemia is a genetic disor...

Physioex questions correctly answered to pass latest 2023Which of the following statements describing the mechanics of breathing is false? - correct answer Ventilation relies exclusively on contracting skeletal muscles The contraction of which of the following muscles will increase the thoracic cavity volume during inspiration? - correct answer the external intercostals At the beginning of inspiration, the - correct answer thoracic cavity volume increases At the beginning of expiration,...

Physioex Exercise 3: Neurophysiology Of Nerve Impulses Compete Tests The two types of cells in the nervous system are neurons, neuroglia neuroglia is also known as _____ cells glial sensory neurons in the nose generate an electrical signal called receptor potential travels along the membrane of the sensory neuron's axon to the brain action potential the action potential releases chemical neurotransmitters chemical neurotransmitters bind to receptor proteins on the membrane of brain ____...

PHYSIOEX question with complete solution graded A+ already passed What is the equation of flow? - correct answer Flow= pressure gradient/ resistance Blood flow - correct answer The amount of blood moving through a body area or the entire cardiovascular system in a given amount of time. Total blood flow is proportional to cardiac output (the amount of blood the heart is able to pump per minute). - correct answer TRUE Resistance - correct answer A measure of the degree to which the blood...

Neurophysiology of Nerve Impulses. Physioex 3 correctly answered 20231. 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...

PhysioEx Exercise 8 graded A+ already passed 2023Which of the following describes the effect of boiling and freezing? - correct answer Boiling denatured the enzyme, but freezing had no effect. What does a strong IKI result indicate? - correct answer Substrate is present. The presence of reducing sugars _______. - correct answer is detected using Benedict's reagent Which tubes demonstrated amylase activity with a small amount of reducing sugar produced? - correct answer tubes 7 and ...