Answer:
(d) None of the above
Explanation:
The pH of your stomach must be highly acidic, because the optimum pH for pepsin, the chief stomach enzyme, is 1.5.
(a) and (b) are wrong, because both conditions are basic.
(c) is wrong, because pH 7 is neutral.
Thier are 37.2 trillion
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Answer:
The correct answer is "random coils".
Explanation:
Random coil is a type of polypeptide secondary structure comprised of conformation that do not follow an established conformation but rather are oriented randomly. These random coils conformations provides flexibility to proteins, since the lack of a particular structure (such as alpha helices or beta sheets), allows the protein to bend, fold or move.
Some of the main functions of skin cells are to provide protection, perceive and transmit sensation, control evaporation and regulate temperature.<span> Skin cells, which are epithelial cells, are also self-repairing and reproduce quickly.</span>
<span>D is the correct answer. Lipids only dissolve (are soluble) in non polar solvents, which are liquid solvents whose electrical charges (from electrons) are not present or are cancelled out. Lipids include fats, waxes, some vitamins that are fat-soluble and other molecules.</span>
