Investigating the Energy Content of Different Foods
Aim: To investigate the energy content of different foods.
Introduction: We can show that food is a fuel by burning it, using
this, we are going to investigate the energy content of four different
foods; peanut, bread, pasta and a Brazil nut. Food is also a fuel in
another sense. Plants and animals use food to get their energy.
Different foods contain different types and amounts of energy. When
food, and all other fuels (e.g. coal, oil, etc.), is burned, energy in
the form of heat is transferred to it's surroundings warming them.
The body's most basic need is for energy. To get energy it needs food
as a fuel and oxygen to burn it. The amount of energy foods can
produce is measured in units called calories. A food calorie, or
kilocalorie, is the amount of heat required to raise the temperature
of 1 kilogram (2.2 pounds) of water 1 degree Celsius (1.8 degrees
Fahrenheit). The body changes the calories in food into energy, which
is necessary for every act from blinking an eye to running a race.
Energy is also used for the growing process, for rebuilding damaged
cells, and for regulating body systems.
The number of calories needed each day depends upon how much energy an
individual's body uses. An active child can need more calories than an
adult who works at a desk. The body needs more calories in cold
weather to stay at an even temperature.
Prediction/Hypothesis: I think that the Brazil nut will contain the
most energy. I did some energy amounts each food has, the results are
as below;
Brazil Nut: 265000 joules per gram
Peanut: 24600 joules per gram
Bread: 24600 joules per gram
Pasta: 2500 joules per gram
Although both types of nut contain high levels of energy, they might
contain less of other substances, like protein, for example. Which
Bread and Pasta can provide more of.
Diagram:
Method:
1) Set up apparatus as shown in diagram
In an article titled “Energy Digestibility of Giant Pandas on Bamboo-Only and on Supplemented Diets”, the goal of this study was to figure out the energy digestibility of bamboo by giant pandas using digestibility trials and through analysis using bomb calorimetry. An energy budget is a numerical statement that measures the amount of energy collected and the placement of the energy to various functions. Energy budgets can be described using the equation: E=M+P+U+F (where E is the total amount of energy consumed, M is the energy used for maintenance and activity, P is the energy used for production (which includes growth and reproduction), U is the energy lost in urine, and F is the energy lost in feces.). The total energy consumed minus the energy lost in feces is the digestible energy and shows the ability of the digestive system to process consumed food.
Animal metabolism consists of the utilization of nutrients absorbed from the digestive tract and their catabolism as fuel for energy or their conversion into substances of the body. Metabolism is a continuous process because the molecules and even most cells of the body have brief lifetimes and are constantly replaced, while tissue as a whole maintains its characteristic structure. This constant rebuilding process without a net change in the amount of a cell constituent is known as dynamic equilibrium (Grolier1996). In the combustion of food, oxygen is used and carbon dioxide is given off. The rate of oxygen consumption indicates the energy expenditure of an organism, or its metabolic rate (Grolier1996).
In the experiment, 0.436 Calories per gram were found when dividing the average heat per mass of food by 1000. The standard deviation proved that this number can either be moved up 0.082 Cal/g or down. This is nowhere near the 3.2 Calories per gram which appeared on the label
Soul Food explore the hardships and trials of black family life, and through the characters, setting, and theme of both the story and the film, the issue of class and the search for community is discussed. Big Mama wanted her family to come closer. The more she tried, the farther apart they became. During her struggle, she encountered many obstacles including her own son 's beliefs, but she did not let them curve her appetite to gain higher status in society.
Nutrition, I have learned plays a big part in our life. To be honest I was clueless about how much nutrition affected our everyday lives. I love going to the gym working out, now that I know what should go into my diet I think I will see a lot more improvement. I occasionally follow the latest diet fads because I believed it would be better for my health, but in turn it really hurt more than it helped! This Diet Analysis project has been extremely useful course because I can personally relate to it and can use much of the information learned to my daily routines. The Diet Analysis project was a real eye opener because it let me see what exactly I was putting into my diet.
Freedman convincingly argues that hitting the drive-thru may be a better choice for you and your pockets, rather than spending hours and all of your hard earned cash at a whole foods store. That may sound ridiculous to most people because they’re under the impression to not eat fast food because it is not good for you, while that may be true, neither is the advertised “healthy” foods.
Nutrition and physical activity are important aspects as they improve health and reduce chronic diseases. In June of this year my family physician placed me on a doctor assisted weight loss program that enabled me to eat my favorite foods but in appropriate proportions and in heathier ways. The best part about Supertracker is that it gives me wonderful tools to support me in understanding and meeting my goals. Once I created a profile through Supertracker I was provided a personal plan to follow including the amount of grains, vegetables, fruits, and protein I needed to be successful. For three consecutive days, I entered my food and activity intake into Supertracker and was able to analyze the excesses and deficiencies
Among all the factors that cause obesity, the calorie intake of many Americans could be the largest problem. In the last twenty years, food has been mad...
Keeping track of what I ate for three days forced me to be held accountable. Few people realize just what they eat on a daily basis. Seeing the food log and the analysis helped me have a better understanding of what I put into my body and what my body needs on a daily basis as far as energy and nutrients. The analysis gave a summary for calories, food groups, and nutrients, both macro and micronutrients.
When gasoline burns in the engine of a car, an equal amount of work and heat appears as the energy is released. The heat from the engine warms its surroundings, the car parts, the air, and the passenger area. The heat energy is converted into the electrical energy of the radio, chemical energy of the battery, and radiant energy of the lights. The change in the sum of all of the energies formed from the burnt gasoline is equal to the “.change in energy between the reactants and products.” Biological processes, like photosynthesis, also follow energy conservation.
The foods you eat fall into various categories. There are some foods that are just outright bad for you like heavily processed foods or foods that are high in sugar. Then, there are some foods that are good for you such as chicken breasts, eggs, and most leafy green vegetables. Finally, there are superfoods, which are an extremely healthy category above all of the rest.
Without food you will be starving to death. With foods it keeps your body alive and kicking with the nutrients and minerals you intake it keeps your energy level at high. The food groups that contributes to the sustenance of life includes; Glow foods such as Vegetables and Fruits, Grains. Grow foods such as dairy, meat and other alternatives of meat with rich in protein that helps us grow big and strong. Go foods that provides energy such as bread rice and any other foods that primarily provides carbohydrates.
Food is anything we consume, whether it is for taste or for nutritional value. The nutritional value of a food is the value the food gives to the body to function. To identify whether a food has poor or good nutritional value, people use a nutrition facts chart. These charts can display the amount of fat, sugar, calories, fiber, carbohydrates, cholesterol, calories, and more.
... and nutritious experience by giving people actual experience to see, feel and taste what is nutrition about (Hegler, 2010).
2574) Knowledge of the energy density of foods is a large part of being able to maintain a healthy diet. High energy density foods contain a lot of calories in a small amount of food, while low energy density foods contain a low amount of calories in a large amount of food. (CITE) According to the CDC, “Fat increases the energy density of foods, while water and fiber decrease energy density. Water has the greatest impact on energy density because it adds weight to food without increasing calories, thus decreasing the energy density. Most fruits and vegetables are low in energy density because of their high water and fiber content and their low fat content” (Can, n.d., p. 3). “Eating low-energy-density foods promoted moderate weight loss. In studies lasting longer than 6 months, weight loss was 3 times greater in persons who ate foods of low energy density (low in fat and high in fiber) than those who ate simply low-fat foods” (Can, n.d., p. 3). “Can Eating Fruits and Vegetables Help People to Manage their Weight?” an article from the CDC, describes how diet intervention programs where participants are instructed to specifically incorporate more fruits and vegetables lost more weight and maintained a lower weight as compared to groups that were instructed to lower high fat and high sugar foods (Can, n.d., p. 3). This finding supports the theory that low density foods are crucial to maintaining