Calories: What Are They and How They Work PDF
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Modern Academy
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Summary
This document provides information about calories, their function in the human body, and how they're used to maintain energy. It discusses different aspects of calories, including their association with food items, how they're measured, and how metabolic processes use them in the body. It is a general explanation and does not contain specific exam questions or answers.
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What Are Calories?! Calories Everybody needs to eat to variety of ingredients مكونات survive. People eat all kinds of متعددة foods with a wide variety of Vitamins فيتامينات ingredients, vitamins, nutrients Nutrientsمغذيات and other substances that a...
What Are Calories?! Calories Everybody needs to eat to variety of ingredients مكونات survive. People eat all kinds of متعددة foods with a wide variety of Vitamins فيتامينات ingredients, vitamins, nutrients Nutrientsمغذيات and other substances that are helpful مفيدة helpful for the body. One of the calories سعرات حرارية things many people give close per serving في مقابل كل وجبة مقدمة attention to, though, is the number of calories a food or drink product may contain. A calorie is a unit of energy. Nearly every food and drink product contains some calories, and some have many more calories than others. Calories are usually listed as a number per serving. Calories Calories are usually associated associated with ترتبط بـ with food items, but other motorized vehicles مركبات تدار substances contain calories as بالمحركات well. For example, a gallon of raise يرفع gasoline contains about common شائع 31,000,000 calories. (Do not physical sciences العلوم الفيزيائية drink gasoline.) Gasoline contains energy for a car and other motorized vehicles. A calorie is the amount of energy or heat, it takes to raise the temperature of 1 gram of water 1.8 degrees Fahrenheit, and one calorie is equal to 4.184 joules, which is a common unit of energy used in physical sciences. Calories In addition, when calories listed يكتب-يدرج are listed on food items, the label شعار-عالمة-ملصق calories are actually kilocalories because 1,000 calories = 1 kilocalorie. A food calorie contains 4,184 joules. With this in mind, a can of soda with 200 food calories listed on its label contains 200,000 regular calories. The gallon of gasoline would contain 31,000 kilocalories. If a person burns 100 calories, it actually means they burned 100 kilocalories. Calories Calories are necessary Survive -البقاء على قيد الحية because they contain العيش energy for a human to pumping blood ضخ الدم survive, which includes food productمنتج غذائي breathing, moving, and pumping blood. The energy humans need come from the calories in the food eaten each day. The number of calories in a food product is measured by how much potential energy the food contains. Calories For example, a gram of Carbohydratesكربوهيدرات carbohydrates has 4 Determine يقرر-يحدد calories, a gram of protein Nutritional labels ملصقات has 4 calories, and a gram التغذية of fat has 9 calories. To a single serving حصة-وجبة determine the number of واحدة calories a food item contains, a person can find the number of carbohydrates, fats, and proteins a food product contains which then determines the amount of energy provided by the food. Nutritional labels of all food items show the Calories Once a person eats the food metabolic processes عمليات item, the body burns or uses األيض-التمثيل الغذائي the calories through metabolic Sugars أنواع أخرى من السكريات processes, which break fatty acidsأحماض دهنية carbohydrates into glucose amino acidsأحماض أمينية and other sugars, the fats into Moleculesجزيئات glycerol and fatty acids and the Bloodstreamتيار الدم-مجرى proteins into amino acids. All Absorbed يمتص nutrients your body needs to survive. The molecules are then transported through the bloodstream to the cells of the body, where they are either absorbed for immediate use or sent to a final stage of metabolism where they are stored. Calories The number of calories Average متوسط needed is different for Diet حمية غذائية-نظام every person. The Needed الالزمة average number of calories most people need is about 2,000 per day. The food labels usually show the nutrients and vitamins needed based on a 2,000 calorie per day diet. The height, weight, gender, age, and activity level of a person determines the Calories If a person takes in more Gain يكتسب calories than needed, the Lose يفقد-يخسر person will usually gain Exercising ممارسة التمارين more weight. If a person الرياضية does not get enough calories needed for their body, they will lose weight. However, the speed in which the body burns calories may change as well. Exercise increases a person's metabolism, which means the calories will be burned faster. In addition, some people have a higher metabolism rate than other Calories Finally, not all serious health calories from foods consequences عواقب are healthy. For غير حميدة-صحية وخيمة example, calories from carbohydrates and proteins are healthier than sources of calories from fats. An excess of fat can sometimes have serious health consequences.