Match each term with its correct definition.

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Question

Match each term with its correct definition.

1._______ Organisms whose presence in water indicates contamination from feces

2._______Refers to water that is fit to drink

3._______Used in the processing of animal wastes; mimics primary and secondary wastewater treatment

4._______Water that is not bound by solutes

5._______Undesirable fermentation reactions in food, leading to poor taste, smell, or appearance

6._______Brief heating of foods during processing

7._______Descriptor of the level of organic material present in wastewater

8._______Fermentative products produced by microorganisms during stationary phase

A. Spoilage

B. Water activity

C. Coliforms

D. Pasteurization

E. Secondary metabolites

F. Potable

G. BOD

H. Oxidation lagoon

Accepted Answer

Hello, everyone. Let's take a look at the next problem. This is a matching problem. It says match the descriptions below with their corresponding terms. And rather than read everything multiple times format is we've got um five descriptions and then five terms to match them with and then four answer choices, matching them in different combinations. So I'm going to read all the terms first and then we'll work through the descriptions one at a time and match them. So our terms are a spoilage B Oxidation Lagoon, C pasteurization D potable or Ebod. So let's look at our descriptions. Number one says refers to water that is fit to drink. So water that's safe to drink low enough pathogens, not any chemicals um is choice D potable is the term for that. So we'll cross up D there number two used in the processing of animal wastes mimics primary and secondary wastewater treatment. So a technique of processing animal wastes so that you can then release the effluent into um local water without worrying about pathogens or the um amount of ox of organic matter is by means of choice B an organic or excuse me, an oxidation lagoon. So these are manmade pools that are filled with microorganisms that will digest the organic matter in the waste. And this is important because that process um has a high amount of oxygen demand. And if you just release all that into bodies of water, they will become depleted of oxygen. So to prevent that, you release your waste into these manmade pools that are, you know, shallow ponds with dirt around them, you let them sit there for a period of time. The various microbes in those pools break down the organic matter so that they're not consuming the oxygen in the natural bodies of water. And then it also protects against pathogen contamination. Pathogens become inactivated just sitting there in this pool with nothing to do. So you can then after a few days release the effluent from that pool into bodies of water without those dangers. So that's number two, number three, undesirable fermentation reactions on food leading to poor taste, smell or appearance. Well, you would say then your food is spoiled. So that's a spoilage for number three, number four, brief heating of foods during processing. Well, that heating to make food safe and re reduce their microbial load is to see pasteurization. Now note this is not sterilization doesn't destroy all microbes but just the ones that would be hazardous to human health. And then number five descriptor of the level of organic material present in wastewater. This is probably the trickiest but by a process of elimination, we know it must be EBOD and that stands for biochemical oxygen demand. And it is a measure of the amount of oxygen consumed by micro organisms as they decompose organic matter in water. And it also measures the chemical oxidation of inorganic matter, which is basically extracting oxygen from the water by chemical reactions. So it looks at in this wastewater, how much oxygen is being removed from the water? So let's look and find our answer choice that has a correct matching here. So we see number one is D. So choice A has one, D choice B has one, B. Choice C has one D and choice D has one C. So we've eliminated B and D number two is matched with B. So choice A has that choice. C has two match with B. Number three is matched with A and both A and C have that match. Number four is matched with C. So choice A has four matched with E. So that's incorrect. So we're on Detroit, C which has four matched with C and then five correctly matched with E. So our correct matching here is choice C one, D two B, three A four C and five. E see you in the next video.

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