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Team:SDU-Denmark/Tour54
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Manuscript
Boy walks into a burger joint and orders a cheeseburger.
| 1. | Burger with or without bacteria? |
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Burger mama: ”Hello there, kid.” Boy: ”Hello there, burger mama.” Burger mama: ”What can I do for you today, mister?” Boy: ”I would like one juicy cheeseburger, please.” Burger mama: ”Okay then, coming right up. Do you want it with or without bacteria?” (Boy looks confused into camera – CHOICE: 1.1 or 1.2) |
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| 1.1 | With: |
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Burger mama: ”Well, I couldn’t really prevent your burger from containing bacteria either, since there are bacteria everywhere. If we imagined a bacteria free or sterile burger, this would be ruined already after your first touch and breath on it, since bacteria is a big and important part of the environment on your skin and in your mouth. In addition to this, you would have to lose the cheese in cheeseburger. The cheesemaking process, apparently, involves fermentation of milk, which is performed by lactic acid bacteria. These converts milk sugar into lactic acid. When the lactic acid accumulates, the structure of milk proteins changes and this causes texture of the product. At least somebody told me so.” Boy: ”I could never lose the cheese!” (Boy gets burger) To 1.1.1 |
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| 1.2 | Without: |
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Burger mama: ”Well, we just give it some time in the autoclave then, to sterilize this bad boy.” (Autoclaving burger) (Boy grabs burger and reaches his mouth with it – Burger mama takes it out of his hands instantly) ”Well, you can’t eat this now, since you contaminated it with your hands and breath.” (*BOOM* to the classroom) Professor: ”Did you know that bacteria are found everywhere. Relatively few are bad for your health and can cause diseases – most are thought to be harmless and some even necessary for your body’s function. Bacteria are considered microorganisms and can’t be seen with the human eye. The human body consists of approximately 10 times as many bacterial cells as human cells – many of these are found lining the gastrointestinal tract. The surface of the human body, like the intestines, mouth and skin, is thus covered inside and out with millions of microorganisms, known as our normal body flora, which in fact helps to protect us from infectious microorganisms. At the same time, the air we breathe is full of bacteria as well. Largely by stirring up material from the floor, left by previous persons’ attendance, a person can add about 37 million bacteria to the air every hour, just by his or her mere presence in a room. In addition to this, the manufacturing of many food products involves the activity of different microorganisms. Cheesemaking involves fermentation of milk by lactic acid bacteria, and a yeast called Saccharomyces cerevisiae causes the expansion of dough for making bread, by its fermentation of sugar to carbon oxide gas. So for instance this burger, you were just trying to buy, could never be made without containing bacteria.” Boy: ”Oh, nasty shit. But I understand – bacteria are kind of awesome then!” (*BOOM* to burger joint) To 1.2.1 |
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| 1.1.1 | French fries with or without DNA?* |
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Boy: ”Oh, burger mama. I forgot to order some french fries with my burger.” Burger mama: ”Coming up, boy. But do you want them with or without DNA?” (Boy looks confused into camera – CHOICE: 1.1.2 or 1.1.3) |
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| 1.1.2 | With: |
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Burger mama: ”Well, good choice there boy. I’m not sure I really could make you any french fries without DNA, since french fries are made of potatoes and potatoes are tubers from a tuberous crop. Plants consist of cells and every cell contains DNA, which makes french fries full of DNA, I think?!” (Burger mama shows french frie → potato → potato plant) Boy: ”Yeah, that’s what I thought too.” (Boy gets french fries) Burger mama: ”But kid, can you tell me what exactly DNA is?” (Boy looks confused into camera – CHOICE – 1.1.2.1 or 1.1.2.1) |
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| 1.1.2.1 | Yes: |
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Boy: ”DNA stands for deoxyribonucleic acid. It is a macromolecule found in every cell, forming a living organism. DNA encodes genes, a given cell and organism’s characteristics, by the sequence of four different bases; Adenine, Thymine, Guanine and Cytosine. It’s also the genetic inheritance of every cell and living organism, since these genes can be passed on to the next generation.” Burger mama: ”Well, that is truly awesome! You’re a clever fella, huh?!” To 2. |
