The international unit for energy is the joule. Specifically for food, an old-fashioned unit, the kilocalorie (often just written Calorie, with an uppercase "C"), is often used instead. One kilocalorie is about 4200 joules.
Calorie
how much energy the food molecules have
No, kilocalories measure the amount of energy in foods. There is between 4 and 9 kilocalories per gram in the digestible portion of any foods.
an energy pyramid shows the amount of energy that moves from one feeding level to another feeding level in a food web
in food there are calories which is the amount of energy the food has. in fuel there is no actual name for the energy because there are so many measurements of energy, and that includes calories.
The recommended unit to use for any type of energy is the joule. That way, no conversion factors are required, when converting from one type of energy to another. In practice, the calorie or kilocalorie is still sometimes used for food.
Cal means calories. It is a measure of the amount of energy that a particular food has. So, if we eat that particular food, then we will obtain that amount of energy.
Calories
The number of links in a food chain is ultimately limited by the amount of energy in the producers of the particular ecosystem.
calories a+
calories a+
Calories
The amount of energy that you can get from that food. We get our energy from calories. And when we burn energy, we burn calories. So, we measure calories to see how much energy we will get from that particular food. This tells us how much of that food we should eat, compared to how much energy we expend.
who gets the least amount of energy in the food chain
The amount of energy in food is measured in kilojoules (kL)
energy food barley or oats
The amount of oxygen that's consumed when you burn your food is an indirect measure of the amount of energy that's released from the food. Bomb calorimeters are sometimes used to measure the energy content in food.
fats oil and sweets have largest amount of energy.