OLESTRA is a fat replacer used in food processing that can bind to fat soluble vitamins and thereby reduce their absorption. As a fat substitute, olestra does not add fat, calories or cholesterol to products. It is normally used in the preparation of high fat foods in order to lower their fat contents.
Answer: False, it is transported as bicarbonate
Explanation: Carbonic anhydrase is an enzyme belonging to the family of metalloenzymes that catalyzes the conversion of carbon dioxide and water to ions and carbonic acid. This enzyme is found in red blood cells where carbon dioxide enters by diffusion. Once it diffuses through it is then converted by carbonic anhydrase to bicarbonate and hydrogen ions.
That is how its transported in bloodstream, passes through the heart via the venous system, to the lungs. Therefore the answer is False.
DNA → RNA → protein
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When the upper water layers warm in the summer months, they become separated from deep water by a transition zone known as a thermocline. In a thermocline, the temperature decreases rapidly with small increases in depth. This phenomenon linking temperature change with depth is called temperature stratification.
