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Questions and Answers
What is a characteristic of lipids?
What is a characteristic of lipids?
What is true about lipids?
What is true about lipids?
What is different about lipids compared to polysaccharides and proteins?
What is different about lipids compared to polysaccharides and proteins?
What is a property of lipids that distinguishes them from other biomolecules?
What is a property of lipids that distinguishes them from other biomolecules?
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What is NOT a characteristic of lipids?
What is NOT a characteristic of lipids?
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What are fats and oils classified as?
What are fats and oils classified as?
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Which of the following is a characteristic of oils?
Which of the following is a characteristic of oils?
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What is the main difference between fats and oils?
What is the main difference between fats and oils?
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Where are oils typically found?
Where are oils typically found?
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What is true about the saturation of oils?
What is true about the saturation of oils?
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What is the name of the phospholipid that contains glycerol as the alcohol?
What is the name of the phospholipid that contains glycerol as the alcohol?
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What is the alcohol component in Cephalin?
What is the alcohol component in Cephalin?
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What is the name of the phospholipid that contains Sphingosine as the alcohol?
What is the name of the phospholipid that contains Sphingosine as the alcohol?
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What is the component that is common to both Glycero-phospholipids and Sphingophospholipids?
What is the component that is common to both Glycero-phospholipids and Sphingophospholipids?
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What is the name of the specific phospholipid that contains Sphingosine, fatty acid, phosphate, and choline?
What is the name of the specific phospholipid that contains Sphingosine, fatty acid, phosphate, and choline?
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What is the primary function of VLDL?
What is the primary function of VLDL?
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Where are the lipids transported to by VLDL?
Where are the lipids transported to by VLDL?
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What type of lipids are mainly transported by VLDL?
What type of lipids are mainly transported by VLDL?
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What is the source of the lipids transported by VLDL?
What is the source of the lipids transported by VLDL?
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What is the name of the lipoprotein that transports dietary lipids?
What is the name of the lipoprotein that transports dietary lipids?
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Which type of lipoprotein carries cholesterol from the peripheral tissues to the liver?
Which type of lipoprotein carries cholesterol from the peripheral tissues to the liver?
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What is the function of low-density lipoproteins (LDL) in the body?
What is the function of low-density lipoproteins (LDL) in the body?
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Which of the following lipoproteins is responsible for transporting excess cholesterol from the peripheral tissues to the liver for excretion?
Which of the following lipoproteins is responsible for transporting excess cholesterol from the peripheral tissues to the liver for excretion?
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What is the direction of cholesterol transport by high-density lipoproteins (HDL)?
What is the direction of cholesterol transport by high-density lipoproteins (HDL)?
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What is the term for the 'good' cholesterol that carries cholesterol from peripheral tissues to the liver?
What is the term for the 'good' cholesterol that carries cholesterol from peripheral tissues to the liver?
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Study Notes
General Properties of Lipids
- Lipids are not polymers, but rather small molecules.
- Lipids are insoluble in water.
Structure of Lipids
- Fats and oils are esters of fatty acids with glycerol.
- Oils are liquid and unsaturated, commonly found in plants.
- Fats are solid at room temperature.
Phospholipids
- Phospholipids contain glycerol as an alcohol, such as:
- Glycero-phospholipids (glycerol + phosphate + fatty acid + choline or ethanolamine)
- Examples: Cephalin (glycerol + unsaturated fatty acid + phosphate + ethanolamine) and Sphingophospholipids (Sphingosine + fatty acid + phosphate + choline)
Lipid Transport
- Chylomicrons transport dietary lipids (exogenous) from the small intestine to peripheral tissues.
- Very Low Density Lipoproteins (VLDL) transport lipids (endogenously synthesized) mainly triglycerides (TG) from the liver to peripheral tissues.
- High Density Lipoproteins (HDL) or "good" cholesterol, carry cholesterol from peripheral tissues to the liver.
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Description
Explore the characteristics of lipids, including their insolubility in water, and contrast them with other biomolecules. Learn about the properties of lipids and their differences from other molecules.
