I believe the positive control receives a treatment with a known response, so that this positive response can be compared to the unknown response of the treatment. This is used in electrophoresis to compare the DNA strands to the DNA standard. The negative control is used when no response is expected, which is also used in the process of electrophoresis. Electrophoresis is a technique used in laboratories in order to separate macromolecules based on size. It applies a negative charge so proteins move towards a positive charge. It is sued for the analysis of both DNA and RNA.
The correct formula for solving this question is: VC = IRV + ERV + TV, where VC is vital capacity, IRV is inspiratory reserve volume, ERV is expiratory reserve volume and TV is tidal volume. From the given information, TV =500, ERV =1200 and the standard IRV for male is 3100ml, therefore,
VC= 3100 + 1200 + 500 = 4800ml.
Proteins, nucleic acids, and carbohydrates are grouped by common structural features found within their group. lipids can be grouped based on their high solubility in nonpolar solvents, and their preponderance of nonpolar groups.
Non-polar solvents cannot dissolve a polar compounds since no opposite charge exist, and the polar compound is not attracted. It is this becuase of absence of partial charge that also makes these molecules non-polar. Some of examples of non-polar solvents include benzene, hexane, pentane, toluene, etc.
Higher the solubility of a compound is that the larger the amount of the compound which can dissolve in a solution.
Learn more about nonpolar solvents here
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Explanation:
Many factors can affect the rate of diffusion , including , but not limited to , concentration gradient , size of the particles that are diffusing , and temperature of the systems , diffusion of substances in and out of cells is mediated by the plasma membrane .
