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Answer:
polypeptide chain
Explanation:
each amino acid unit in a polypeptide is called a residue. A polypeptide chain has polarity because its ends are different, with an α-amino group at one end and an α-carboxyl group at the other.
Answer:
Two main functions of keeping the stomach highly acidic are:
C) Denature proteins to ease their breakdown
D) Kill bacteria to prevent food borne disease
As, the stomach maintained a high acidic to kill the all bacteria and denture the protein for ease in the digestion system. The diaphragm keeping acid in out stomach. It basically help stomach in the activation of enzymes pepsin which helped in the breakdown of the proteins. And the acidic stomach prevents from the certain microbes produced in our stomach.
The high specific heat capacity of water moderates our climate and allows for life on Earth.
Because it takes a great deal of heat to warm up water, water stays cool longer, and acts as an effective coolant. This is why cool "sea breezes" are welcome on a hot summer's day.
On the contrary, once the water is warmed up, it takes a great deal of heat release to cool the water. This keeps warm winds blowing in off large lakes and oceans in the fall and into the winter, making the temperatures not as frigid as they otherwise could be.
This also accounts for the amounts of precipitation that occur around large lakes, such as the Great Lakes, and oceans.
The correct answer is option A, that is, a solution with a pH of 1.
pH refers to the unit of measure utilized to articulate the extent of acidity of a substance. The pH scale varies from 0 to 14. A pH of 0 means a very high acid activity, the hydrochloric acid, and nitric acid are very strong with pH values of 0, while the stomach acid exhibits a pH of 1.
Technically, the scale of pH, in reality, depicts the amount of positively charged H+ ions and negatively charged OH- ions in a solution. The pH scale is a logarithmic one, that is, each unit of pH exhibits 10 times as more ions of hydrogens in comparison to the unit above it.
Therefore, in a solution of pH 1, there are 10^9 times more hydrogen ions in comparison to the solution at pH 10.