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At 1 AM, a researcher places a healthy squid giant axon in a bath of normal squid physiological extracellular saline and internally perfuses the axon with normal squid intracellular saline.
Its resting potential at 1:55 AM is -70 millivolts. For this question, ignore any possible effects due to the sodium-potassium pump. At 2 AM, the researcher changes the
A. Intracellular perfusion fluid so that its concentration of potassium ion is decreased. This will cause an increase in the Nernst equilibrium potential for potassium ion.
B. Intracellular perfusion fluid so that its concentration of potassium ion is increased. This will cause a decrease in the resting membrane voltage.
C. Extracellular saline so that its concentration of potassium ion is decreased. This will cause a decrease in the Nernst equilibrium potential for potassium ion.
Ventilation of Tracheal System – Passive Suction Ventilation Many active insects and insects that live in environments where water is scarce cannot depend on diffusion alone t
Air pollutants - Effects on plants Particulate matter such as cement, coal, petro coke, dust, and fly-ash screen the light and thus change its quantity and quality. Dust plug
Q What are the few examples of annelids? Earthworms, lugworms and leeches. Q. Which are the morphological features that differentiate the beings of the phylum Annelida from
To test the effects of temperature on the activity of yeast Make up a quantity of bread dough .Stir a yeast cake in water and methodically mix the yeast with the dough. Divide
What are the three main signs of diabetes? The three main signs of diabetes mellitus are called as the diabetic triad: polyuria, polydipsia and polyphagia. Polyuria is the e
a. Which amino acid can form disulfide bonds? b. Which level of protein structure do disulfide bonds affect? How? c. Cytoplasmic proteins rarely form disulfide bonds, even if they
Care required by a HIV infected person: 1) An HIV infected person needs acceptance and support from the family members. The home is very important place for a person with AIDS.
State two ways in which cardiac muscle is microscopically similar to skeleton muscle.
Q. What is the acrosome of the sperm cell? How is it formed? The acrosome is a structure that contains a great number of digestive enzymes it is formed by the union of Golgi ap
Observing where soil bacteria live Dig up a clover, alfalfa or soy-bean plant. Carefully increase all the soil from the roots and see if you can find the little white nodules o
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