Which equation best describes the relationship between an ion gradient and the equilibrium potential that will form when the membrane is permeable to only that ion?
A) Huxley equation
B) Goldman equation
C) Nernst equation
D) Hodgkin equation
E) Katz equation
Answer: C
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Fifteen high school students visited a local farm in central Wisconsin for a weekend where they enjoyed petting farm animals, riding horses, and campfire meals
With sanitation in mind, only one individual remembered to wash her hands with water pumped from a well after petting the animals before dinner. After two weeks of the girl passing out at random occasions, she was rushed into the emergency room where doctors determined she was severely dehydrated. Explain how it took direct observation of a fecal sample to solve this potential life-threatening disease and how this disease was treated in the otherwise healthy girl. Also mention any necessary precautions the individual should have taken after being diagnosed with the disease. What will be an ideal response?
The length of a DNA sequence is _____ than the mature mRNA transcribed from it, because
A. shorter it does not contain exons. B. equal it was transcribed from the DNA sequence. C. longer it does not contain introns. D. shorter each codon of three bases encodes only one amino acid. E. longer each codon of one amino acid encodes three bases.
Skeletal muscle appears striped because of the
A) way the sarcoplasmic reticulum wraps around the myofibril. B) arrangement of thick and thin filaments. C) accessory proteins in thin filaments. D) orientation of T tubules. E) arrangement of ions across the sarcoplasmic reticulum membrane.
Which of the following uses glucose for carbon and energy?
A) chemoautotroph B) chemoheterotroph C) photoautotroph D) photoheterotroph