What is the difference between triglycerides and phospholipids?

Asked By: Olaya Gehman | Last Updated: 22nd March, 2020
Category: healthy living nutrition
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But a triglyceride contains three fatty acids attached to the glycerol backbone, while a phospholipid has two fatty acids plus a phosphate group attached to the glycerol. The phosphate group, a charged molecule made up of phpsohorus and oxygen, not only alters the structure of the lipid, but also its function.

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In respect to this, what is the difference in function between triglycerides and phospholipids?

However, they differ slightly in structure and function. Triglycerides have glycerol and three fatty acids, which makes them fats. Phospholipids are not fats, since they have glycerol, two fatty acids and phosphorus. Fat cells store triglycerides, while phospholipids help break down fats in the body.

Similarly, what is the difference between fatty acids and triglycerides? The backbone of a triglyceride molecule is glycerol, consisting of a small chain of three carbon-based groups. A fatty acid is attached to every carbon group, resulting in a complete triglyceride. The number of hydrogen atoms in each fatty acid determines the physical characteristics of the triglyceride.

One may also ask, what is the difference between triglycerides phospholipids and steroids?

Triglycerides can be found in oils and fats from plants and animals. Phospholipids are the main components of the cell membrane and are composed of glycerol, two fatty acids, and a phosphate group. Steroids function as hormones and are composed of carbon, hydrogen, and oxygen, arranged in rings.

What are 3 functions of triglycerides?

Triglycerides and cholesterol are different types of lipids that circulate in your blood:

  • Triglycerides store unused calories and provide your body with energy.
  • Cholesterol is used to build cells and certain hormones.

36 Related Question Answers Found

Is cholesterol a phospholipid?

Cholesterol is referred as an amphipathic molecule, that it contains its hydrophilic and hydrophobic parts. The hydroxyl group (-OH) in cholesterol is aligned with the phosphate head of the phospholipid on cell membrane, which the rest of the cholesterol goes with the fatty acid of the membrane.

What are two major types of sphingolipids?

What are the two major types of sphingolipids? Sphingolipids: sphingolipids are lipids that are not derived from glycerol. The sphingolipids are amphipathic which are having polar head group with two nonpolar fatty acid tails and also have long chain nitrogen containing amino alcohol (sphingosine).

What are the three fatty acids in triglycerides?

Triglycerides are esters in which three molecules of one or more different fatty acids are linked to the alcohol glycerol; they are named according to the fatty acid components; e.g., tristearin contains three molecules of stearic acid, and oleodistearin, one of oleic acid and two of stearic acid.

What is the structure of triglycerides?

Triglycerides are tri-esters consisting of a glycerol bound to three fatty acid molecules. Alcohols have a hydroxyl (HO–) group. Organic acids have a carboxyl (–COOH) group. Alcohols and organic acids join to form esters.

What are the properties of triglycerides?


Physical properties of triglycerides • Physical properties depend on the fatty acid components. ? Melting point increases as the number of carbons in its hydrocarbon chains increases and as the number of double bonds decreases. ? Oils: Triglycerides rich in unsaturated fatty acids are generally liquid at room.

Why can't triglycerides form bilayers?

Triacylglycerols lack a polar headgroup, so they cannot orient themselves to form a bilayer (To form a bilayer, the non-polar acyl chains of triglycerides would have to be buried in the interior, and the glycerol moiety would have to be at the surface in contact with the water.)

What are the main functions of cholesterol in the body?

Functions of cholesterol in the body
Cholesterol is essential for making the cell membrane and cell structures and is vital for synthesis of hormones, vitamin D and other substances. Cell membrane synthesis – Cholesterol helps to regulate membrane fluidity over the range of physiological temperatures.

How do the properties of triglycerides related to their function?

Triglycerides provide your body with energy, but their main function is to store energy for later use. The food you eat contains calories in the form of carbohydrates, protein and fat. When you consume more calories than your body can use, it stores those calories in the form of triglycerides.

What is the function of Diglyceride?

A diglyceride, or diacylglycerol (DAG), is a glyceride consisting of two fatty acid chains covalently bonded to a glycerol molecule through ester linkages. Two possible forms exist, 1,2-diacylglycerols and 1,3-diacylglycerols. DAGs can act as surfactants and are commonly used as emulsifiers in processed foods.

Do triglycerides dissolve in water?


Triglycerides are completely insoluble in water. However, due to the ionic organic phosphate group, phospholipids demonstrate properties because the ionic group is attracted to water.

How do triglycerides provide energy?

When there is an excess of triglycerides in the body, they can be stored in the liver or in fat cells to supply the body with energy when it is required. This allows the triglycerides to circulate in the blood stream once again to provide energy to cells that require it.

What causes high triglycerides?

Cause
  • The most common causes of high triglycerides are obesity and poorly controlled diabetes.
  • Other causes of high triglycerides include hypothyroidism, kidney disease, and certain inherited lipid disorders.
  • Estrogen therapy, which may be used for menopause symptoms, may also raise triglyceride levels.

What are the 3 types of lipids?

Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules. The three main types of lipids are triacylglycerols (also called triglycerides), phospholipids, and sterols.

Are triglycerides Amphipathic?

Triglycerides comprise three fatty acids bonded to glycerol, yielding a hydrophobic molecule. Phospholipids contain both hydrophobic hydrocarbon chains and polar head groups, making them amphipathic and capable of forming uniquely functional large scale structures.

Are phospholipids good for you?


Phospholipids, a class of lipids, are especially crucial to the health of both cell membranes and neurotransmitters. Brain cell membranes are rich in two phospholipids in particular: phosphatidylserine (PS) and phosphatidylcholine (PC), with PC accounting for a larger percentage.

Why are triglycerides not polymers?

The definition of a polymer is a long chain of monomers held together by chemical bonds. That is to say, nothing but polarity and weak van der Waals' attraction is holding the triglyceride molecules together and it is because the “monomers” aren't joined together that they can't be considered a polymer.

What is the function of sterols?

Sterols, the third lipid class, also regulate biological processes and sustain the domain structure of cell membranes where they are considered as membrane reinforcers [2]. While cholesterol (CHO) is the major sterol of vertebrates, ergosterol (ERG) plays a key role in fungi.