The case is the same for biological cells designed to detect pollutants in the water supply ideally, they'd generate a very large signal (for example, quantities of bright fluorescent proteins) when they detect a small amount of a pollutant.
For example, a quantity of iodine as small as two ten-thousandths of a gram can spell the difference between health and disease.
In the following example, the quantity of money in existence in a hypothetical community is $1 million, and the total income of the community is $10 million per year.
If, for example, the quantity of silver designated as the monetary equivalent of 1 ounce of gold (15 to 1) was less than the quantity that could be purchased in the market for 1 ounce of gold (say 16 to 1), no one would bring gold to be coined.
Take the glucose-TBA mixture as the example, the quantity of adsorbed TBA on the surface of TiO2 is more than that of glucose because the adsorption ability of TBA is stronger than glucose.
The knowledge of reference values may be important to estimate, for example, the quantity of lung edema and its distribution, which may be measured as excess tissue mass, relative to normal subjects.
For example, the quantity of NB-ARC-LRR, the largest class of R proteins, ranges from 92 in Brassica rapa [ 80] and 150 in Arabidopsis thaliana [ 81] to 438 in potato [ 57].
If you were doing a direct mail campaign, as an example, what quantity of folks do you typically reach?
Now assume, in the case of this example, that the quantity of money in this community is somehow doubled, but in such a way that no one expects the quantity to change again.
For example, higher quantities of crude papain may be extracted from female trees compared with male trees and from older fruits compared with younger fruits.
