What is the key chemical difference between a phospholipid and a triglyceride?

What is the key chemical difference between a phospholipid and a triglyceride?

The main difference between the structures of phospholipid and triglycerides is that a phospholipid molecule is composed of a glycerol backbone attached to two fatty acids and a phosphate group whereas triglyceride is composed of three fatty acid groups.

What is the difference between a triglyceride and a phospholipid quizlet?

A triglyceride consists of a “backbone” of glycerol with three fatty acids attached. Phospholipids have a choline or other phosphorus-containing acid in place of one of the fatty acids, enabling them to function as emulsifiers in the body.

How are triglycerides different from phospholipids and sterols?

Triglycerides (fats) Fat is just one type of lipid and an abbreviation for fatty acids. Three fatty acids attach to glycerol to create a triglycerides, also called triacylglycerol. Phospholipids and sterols are not fats. Sterols are lipids and triglycerides are lipids, but cholesterol is not a fat.

What are the differences between phospholipids triglycerides 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 two major types of sphingolipids?

There are three main types of sphingolipids: ceramides, phosphosphingolipids (sphingomyelins), and glycosphingolipids, which differ in the substituents on their head group. Sphingolipids are often found in neural tissue, and play an important role in both signal transmission and cell recognition.

What do both triglycerides and phospholipids have in common?

Triglycerides and phospholipids both have single glycerol molecule in common.

What are the 7 main groups of triglycerides?


  • Saturated fat.
  • Unsaturated fat. Monounsaturated fat. ω−7. ω−9. Polyunsaturated fat. ω−3. ω−6. Trans fat. Interesterified fat.

What are the main parts of a triglyceride?

A triglyceride is composed of glycerol and three fatty acids. When all of the fatty acids in a triglyceride are identical, it is termed a “simple” triglyceride.

What are 3 functions of triglycerides?

Fat Functions Triglycerides, cholesterol and other essential fatty acids–the scientific term for fats the body can’t make on its own–store energy, insulate us and protect our vital organs. They act as messengers, helping proteins do their jobs.

What is the main function of phospholipids?

Phospholipids serve a very important function by surrounding and protecting internal cell components. Since they do not mix with water, they provide a structurally sound membrane that contributes to both the shape and functionality of cells.

What do phospholipids and triglycerides have in common?

What do phospholipids and triglycerides have in common? They both have a glycerol backbone. What type of functional group results when the alcohol group on glycerol reacts with the carboxylic acid group on a fatty acid?

What are examples of sphingolipids?

Sphingolipids attached to a glycan (or a carbohydrate) is referred to as glycosphingolipid. Examples are cerebrosides and gangliosides. Cerebrosides are glycosphingolipids found in the cell membranes of the neurons and the muscle cells. The cerebroside has a sphingosine core.

What are the similarities between triglycerides and phospholipids?

Phospholipids are similar to triglycerides, but they do vary slightly in form and function. While triglycerides have glycerol and three fatty acids, phospholipids have glycerol, two fatty acids and a phosphate. Phosphates are molecules with charges and have oxygen and phosphorus .

How do phospholipids benefit you?


  • Cell Membranes.
  • Functional Phospholipids.
  • Considerations.
  • How are phospholipids different from other lipids?

    Short answer: Phospholipids have several distinct features, but two major differences from other lipids are that they are amphiphilic — i.e., they are both hydrophilic (head end: attracts water) and hydrophobic (tail end: repels water) — with the polar head end including a phosphate group.

    Do phospholipid contain three fatty acids?

    Like triacylglycerols, phospholipids have a glycerol backbone. But unlike triacylglycerols, phospholipids are diglycerides (two fatty-acid molecules attached to the glycerol backbone) while their third fatty-acid chain has a phosphate group coupled with a nitrogen-containing group. This unique structure makes phospholipids water soluble.