______________________________________ Date: ________________________ Student Exploration: Identifying Nutrients Vocabulary: carbohydrate‚ disaccharide‚ lipid‚ monosaccharide‚ polysaccharide‚ protein‚ starch Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What are the major types of nutrients you can get from food? Proteins‚ lipids‚ carbohydrates‚ minerals and vitamins 2. How are these nutrients used by your body? Nutrients are used by your body for everyday functions
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nutrients without any excess or deficiency. There are 6 key components… Carbohydrates: Carbohydrates are compounds composed of carbon‚ hydrogen and oxygen and are generally classified according to their structure and digestibility. Carbohydrates provide energy for the body’s activities and are obtained from grains‚ cereals‚ bread‚ rice‚ pasta‚ fruits‚ vegetables‚ pulses‚ dairy products and sugars. Fibre also forms part of the carbohydrate group. These are your body’s main source of energy as it provides
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Monosaccharide also called SIMPLE SUGAR‚ any of the basic compounds that serve as the building blocks of carbohydrates. Monosaccharides are polyhydroxy aldehydes or ketones; that is‚ they are molecules with more than one hydroxyl group (-OH)‚ and a carbonyl group (C=O) either at the terminal carbon atom (aldose) or at the second carbon atom (ketose). The carbonyl group combines in aqueous solution with one hydroxyl group to form a cyclic compound (hemi-acetal or hemi-ketal). Monosaccharides are
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Title: Benedict ’s test for Reducing Sugars Testable Question: Are all carbohydrates reducing sugars? Hypothesis: If the carbohydrate contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes
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to these substances to give them a better taste. 6. Which food substances contained starch? Are these results expected? Explain. The potato contained starch. This was expected because I know a medium sized potato can contain up to 30 grams of carbohydrates. 7. Which substances contained protein? Are these results expected or not? Explain. The chicken and the eggs contained protein. This was expected
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There is a huge difference between no carb diets and low carb diets. The no carb diet is where there is total elimination of all carbohydrates in everyday meals. This means that the person has to rely on fats from animal source foods as the main source of energy. This diet is particularly well suited for people who need to go on ketogenic diets‚ particularly a small number of epileptic children with difficult-to-cure conditions. People often mistake this kind of diet with the low carb diets. It should
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for muscle and tissue repairment. A dancers diet should be composed of 12-15% of protein. In addition‚ protein provides amino acids necessary for metabolism. Examples of good protein sources for dancers are tofu‚ beans and meat. The benefit of carbohydrates is to provide energy production to the body. The muscles are stored with glycogen through the
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human body needs a certain amount of nutrients for proper functioning and in order to maintain a healthy weight. The diet holds some key essential guidelines that will allow for optimal body performance. These include: High protein intake‚ Low carbohydrate intake (less than 15% of diet)‚ Drinking a gallon of water per day‚ low salt consumption‚ and Low complex sugar intake. At first glance‚ these dietary restrictions
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1. Foster-Powell‚ Holt SHA‚ Brand-Miller JC. International table of glycemic index and glycemic load values: 2002. Am J Clin Nutr. 2002;76(1):5–56. 2. Jenkins DJH‚ Wolever TM‚ Taylor RH‚ et al. Glycemic index of foods: a physiological basis for carbohydrate exchange. Am J Clin Nutr. 1981 Mar;34(3):362–6. 3. Klöting N‚ Fasshauer M‚ Dietrich A‚ et al. Insulin sensitive obesity. Am J Physiol Endocrinol Metab. 2010 Jun 22. 4. DeMarco VG‚ Johnson MS‚ Whaley-Connell AT‚ Sowers JR. Cytokine abnormalities
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bar sit still on the shelf in the grocery store? Indeed‚ candy bars have a significant amount of carbohydrates (mostly simple‚ such as sugar) in their composition. The energy stored within these carbohydrates is chemical potential energy‚ and cannot actually be released or converted into usable chemical energy until it is eaten and taken up into the body‚ where various cells break down the carbohydrate molecules and contribute to the body’s metabolism via the different pathways (e.g.‚ citric acid
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