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Fats, higher calorie content.
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∙ 16y ago
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Do single cell organisms make their own food?
>> biology >> requirements >> living and > information item >> definition >> [good energy and food definitions will identify this overlap in definition (i.e. food (which includes light) = energy for an organism)] also a definition for "life" is required
How do all convert stored energy in food to chemical energy?
Plants utilize sunlight during photosynthesis to convert carbon dioxide and water into glucose (sugar) and oxygen. This glucose has energy stored in its chemical bonds that can be used by other organisms. This stored energy is released whenever these chemical bonds are broken in metabolic processes such as cellular respiration. Cellular respiration is the process by which the chemical energy of "food" molecules is released and partially captured in the form of ATP. Cellular respiration is the general term which describes all metabolic reactions involved in the formation of usable energy from the breakdown of nutrients. In living organisms, the "universal" source of energy is adenosine triphosphate (ATP). Carbohydrates, fats, and proteins can all be used as fuels in cellular respiration, but glucose is most commonly used as an example to examine the reactions and pathways involved. Marathon runners eat a large plate of pasta the night before a competition because pasta is a good source of energy, or fuel for the body. All foods contain energy, but the amount of potential energy stored will vary greatly depending on the type of food. Moreover, not all of the stored energy is available to do work. When we eat food, our bodies convert the stored energy, known as Calories, to chemical energy, thereby allowing us to do work. A calorie is the amount of heat (energy) required to raise the temperature of 1 gram (g) of water 1 degree Celsius (°C). The density of water is 1 gram per milliliter (1g/ml) therefore 1 g of water is equal to 1 ml of water. When we talk about caloric values of food, we refer to them as Calories (notice the capital "C"), which are actually kilocalories. There are 1000 calories in a kilocalorie. So in reality, a food item that is listed as having 38 Calories has 38,000 calories. Calories are a way to measure the energy you get from the food you eat. Just as pasta can provide a runner energy to run a marathon, a tiny peanut contains stored energy that can be used to heat a container of water. For this lab exercise, you will indirectly measure the amount of Calories in couple of food items using a calorimeter. A calorimeter (calor = Latin for heat) is a device that measures the heat generated by a chemical reaction, change of state, or formation of a solution. There are several types of calorimeters but the main emphasis of all calorimeters is to insulate the reaction to prevent heat loss. We will be using a homemade calorimeter modeled after a constant-volume calorimeter. A particular food item will be ignited, the homemade calorimeter will trap the heat of the burning food, and the water above will absorb the heat, thereby causing the temperature (T) of the water to increase. By measuring the change in temperature (∆T) of a known volume of water, you will be able to calculate the amount of energy in the food tested.
How is chemical energy transformed into heat?
Energy can only really be changed into other forms of energy. However, you can use energy to generate force, pressure, torque, etc. For example, when gasoline is burned in a car engine, chemical energy gets converted into mechanical energy (sort of like force times speed).
What 10 things are necessary for an item to be alive?
one is a heart/organs two is a way for breathing three is blood
Identify the item that has kinetic energy?
Anything that has mass, and moves.
What is heat a transfer of?
Heat transfer is the transition of thermal energy from a heated item to a cooler item.
What is a description of heat?
Heat transfer is the transition of thermal energy from a heated item to a cooler item.
What is a description of heat transfer?
Heat transfer is the transition of thermal energy from a heated item to a cooler item.
What is the amount of thermal energy in an item?
heat
Minnesota produces more of this food item than any other state?
corn
What is heat transfer?
Heat transfer is the process of increasing the kinetic energy of a material's particles from a material of high temperature to one of lower temperature.
Which item requires the least energy to increase its temperature lounge chair sand or water Explain your answer in terms of this item's specific heat?
Sand needs least energy to increase the temperature as its specific heat is very low compared to that of water. Water needs more energy to increase its temperature as its specific heat capacity is higher.
Why is air required for cooking?
Air will let heat fully envelope a food item.
Which common household item does not directly create heat energy?
Coiled electric wires inside a toaster(:(:(: SWAGGERIFFIC(:<3
Which food item has the most energy and provide evidence?
The food item with the most energy is whey powder with added caffine. Whey powder is made by creating cottage cheese form milk. The whey is dried out creating a high protein powder. This is how whey powder is created.
What is an energy using item?
the answer to this question is a television is an energy using item!
Which food item has the least amount of energy?
Tertiary consumer has the least amount of energy.....
