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The human body has three macromolecule energy sources: carbohydrates, lipids, and proteins. Carbohydrates are made up of many individual sugar units which are linked together in long chains. The chains can be straight, or they can be branched. Carbohydrates have the molecular formula C6nH(10n+2)O(5n+1) so they only contain carbon, oxygen, and hydrogen. Sugars are used for short to intermediate term storage of energy. That's why drinking a sugary drink can give you energy (a sugar rush) for a short time but then it wears off. The amount of energy in sugar is 4 kcal/g.Proteins are usually made of straight chains of linked peptide units. They provide long term energy storage. Proteins contain carbon, oxygen, hydrogen, and nitrogen with small amounts of sulfur with varying molecular formulas. That is why eating a steak will make you feel full for many hours. Proteins are also used to build up many of the structures in the human body so they are necessary to repair damaged tissue. The amount of energy in protein is 4 kcal/g, just like sugar.Fats are made of up clusters of fatty acids, long chains of repeating CH2 units so they are mostly made of just carbon and hydrogen. Fats are used for long term energy storage. Excess sugar and protein that is consumed by most animals are converted to fats to save the energy for later. The amount of energy in fat is very high, 9kcal/g.

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9y ago
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6mo ago

Carbohydrates, fats, and proteins are macromolecules commonly used for energy in the body. Carbohydrates are the body's preferred source of energy, while fats are stored energy reserves. Proteins can also be used for energy when carbohydrates and fats are not available.

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8y ago

Carbohyadrates, but most energy rich are fats.

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8y ago

That is the glucose. It is a monosaccharide

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10y ago

Yes macromolecule such as glycogen and fats are used to store energy for longer period. During fasting, they breaks to form energy. They are regulated by insulin and glucagon hormones.

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9y ago

Glucose is the primary fuel. They are type of monosaccharide

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8y ago

Glycogen, mainly a carbohyadrate.

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10y ago

The main one is glucose.

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12y ago

Mr. Linke?

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11y ago

ATP

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Q: What macromolecules are used for energy?
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Related questions

Which macromolecules can be used for short term energy?

Carbohydrates are the main macromolecules used for short-term energy storage in the human body. When carbohydrates are broken down during digestion, they are converted into glucose, which is then used as a primary source of energy by cells.


Which class of macromolecules is primarly used as rapidly available energy source by living lings?

They are the lipids. They store a lot of energy


How does a red wolf utilize the four macromolecules?

They are used as building blocks for proteins, DNA and energy.


What types of macromolecules provide the body with energy?

Energy


What plant organelle is used to degrade macromolecules?

The plant organelle used to degrade macromolecules is the lysosome. Lysosomes contain enzymes that break down larger molecules into smaller components that can be used by the cell for energy or recycling.


Where does the energy for respiration comes from?

Macromolecules


Why do macromolecules differ in amount of energy they contain?

because different macromolecules have different kinds/quantity of bonds, and these bonds holds energy


Which food contains the macromolecules needed to build muscles but does not contain the macromolecules that give energy quick?

Hamburger


Which macromolecules can be used for long term energy storage in animals?

Glycogen (made up the macromolecule carbohydrates)


What two macromolecules are used as the primary source of energy for cellular functions?

Carbohydrates and lipids are the two macromolecules used as the primary source of energy for cellular functions. Carbohydrates are broken down into glucose, which is the main source of energy for cells. Lipids can store and provide energy for longer periods of time compared to carbohydrates.


What is the name of the organelle involved in the oxygen requiring process by which the energy in the macromolecules is stored in ATP?

The organelle is called mitochondria. It is responsible for cellular respiration, a process in which oxygen is used to convert macromolecules (such as glucose) into ATP, the main energy currency of the cell.


Which class of macromolecules us primarily used as a rapidly available source by living things?

They are the lipids. Lipids can store much energy