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The journey of the Carbohydrates

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Introduction

Frances Duffy Homework Tea Time. The Start:- We've just been called in for our nutritious balanced tea. Packed to the brim with protein, vitamins, carbohydrates, minerals, and even fat! My mum reckons we all need to eat healthy, balanced meals all the time because we're still growing, and she doesn't want us to become malnourished. She makes sure we have protein for growing and repairing, vitamins for our skin and teeth, carbohydrates for energy, minerals like calcium to avoid rickets and fat to balance it out perfectly by giving us tons of energy and insulating our healthy bodies. My brother and I sit down to eat, and look with despair at the correctly proportioned food in front of us. I instantly push away the broccoli and the cauliflower. I pick a piece of potato out on my fork, and I know it's there because it's loaded with carbohydrates. I know I should eat my greens, because it is important that we digest our food so that we can obtain nutrients and energy from it. ...read more.

Middle

It brings back memories of the Mouth. After we've been turned and churned, what's left of us slides down into the top of the Small Intestine, otherwise known as The Mighty Duodenum. We are given a warm welcome here by being squirted uncaringly with Bile, a nasty piece of work. It's made in the liver, but is adopted by the Gall Bladder and lives there, out of everyone's way. The Bile has a sudden change of heart and decides to be nice to us, by washing away that stinging acid which plagued us from the stomach. At this point, our good friend Amylase returns, with similar backup enzymes this time, and proceeds to finish us off entirely. We are then shoved over to Villi, an area of tissue that is full of creases and folds. Its large surface area maximises the effect of absorption, and we are easily absorbed into the bloodstream and carelessly spread around the body to cells, organs and various other parts. ...read more.

Conclusion

But, if you eat too much of me, I will make you FAT! So, just think of what happens when you eat me...I'm shoved into your mouth, chewed furiously and swallowed quickly with barely a backward glance! You'll be sorry for that. I slip down your oesophagus due to my greasy texture, and land gleefully in your stomach. This is when the fun begins. I speed towards your duodenum, and on the way there I'm squirted with bile! Thanks for that. I swell and enlarge, getting bigger and bigger. I'm being emulsified. This is the worst part now. Lipase appears straight from the pancreas where it was created, and begins breaking me down, breaking me down slowly, slowly, until there's barely anything left of the nutrient they once called Fat...now, in my place, are Fatty Acids and Glycerol. They are then diffused into the bloodstream, and if there are excessive amounts Active transport is used, and I move through cell membranes. From now on it is my job to make you look fat...that is unless you exercise frequently, thus turning me into energy. Please don't do that. Frances Duffy 10H1 ...read more.

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