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marusya05 [52]
3 years ago
12

Why is the membrane filter technique useful for a sanitarian?

Biology
1 answer:
Ostrovityanka [42]3 years ago
7 0
<span>Used to determine presence of fecal coliforms in water.
Water is drawn thru thin filter.
Bacteria are retained on the filter which is placed on suitable nutrient agar.
Each bacterium that is trapped on the filter will develop into a colony.
Count colonies growing.</span>
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The two routes of transport of substances across the epithelium of the gut are by transcellular method and paracellular method.

Transcellular transport refers to the transport of solutes across a epithelial cell layer through the cells.  The best example is the movement of glucose from the intestinal lumen to the extracellular fluid by the epithelial cells. The epithelial cells use the active transport to generate the transcellular transport. Active transport refers to the transport of substances from a region of its lower concentration to a region of its higher concentration against the concentration gradient using cellular energy.

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Explanation: hope this helps

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<h3>The hindbrain</h3>

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More on the hindbrain can be found here: brainly.com/question/5427915

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