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Do enzymes act better under acid or basic pH?
Most enzymes act in pH among 6 and 8, a range that corresponds to the general acidic level of cells and blood. There are enzymes, though, that act only under very acid or very basic pH. So enzyme activity depends on pH interval.
In the stomach, for instance, the gastric juice has a very low pH, around 2, and there the enzyme pepsin acts to intensively digest proteins. In the duodenum, pancreatic secretions enhance the pH of the enteric juice for the action of other digestive enzymes, for example, trypsin.
In what ways is water lost from the body? Water is lost from the body by a) Evaporation (lungs and skin), b) Urination and defaecation (faeces always have water).
what are fats
respiratory system in amphibains
What is Mendelian Genetics? Mendelian Genetics : In 1868, an Austrian monk, Gregor Mendel, first published the basics of a study we now call Mendelian genetics. Mendel obser
Suppose you treated butter with a fatty acid desaturase, an enzyme that removes hydrogen from fatty acids and creates double bonds. What would happen?
How is the transport of substances done across the bryophyte tissues? How is this feature related to the general size of these plants? In bryophytes there are no water-conduct
Why do fats have thermal isolation properties? Triglycerides are weak heat conductors and in addition they form thick layers of fat tissue when accumulated by the organism. Tha
How can we increase of total peripheral resistance? A. A decrease in the diameter of every arteriole. B. An increase of sympathetic discharge to all the smooth muscles
The three charges in the are at the vertices of an isosceles triangle. Let q = 7.00 nC and calculate the electric potential at the midpoint of the base.
How are roots affected by water? Grow some seedlings in single end of a glass dish or pan. When they are about 5 cm tall start watering them on one side only and a little dista
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