MCQ on Sphingolipids

Sphingolipids are a class of lipids characterized by a sphingoid base backbone. Found in cell membranes, they play roles in signal transduction and structural integrity. Variations in their composition contribute to diverse biological functions, including cell recognition and apoptosis regulation. This is an MCQ on Sphingolipids Structure, Functions and Examples.

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1. 
Sphingosine, a key component of sphingolipids, is a long-chain amino alcohol with how many carbon atoms?

2. 
Which class of sphingolipids plays a crucial role in forming the myelin sheath around nerve fibers?

3. 
Ceramides, a type of sphingolipid, consist of a sphingosine backbone linked to what other component?

4. 
Which sphingolipid class contains a phosphorylcholine or phosphorylethanolamine head group and is a major component of cell membranes?

5. 
Glycosphingolipids are sphingolipids with one or more sugars attached. They are involved in cell recognition and adhesion and can be classified into two main groups, based on the number of sugar residues. What are these groups?

6. 
Which sphingolipid class is known for its role in forming the ABO blood group antigens on red blood cells?

7. 
What is the significance of the "dihydroceramide" form of ceramides in sphingolipid metabolism?

8. 
Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid involved in cell signaling. What role does S1P play in regulating various physiological processes?

9. 
In the synthesis of sphingolipids, what is the primary role of ceramide?

10. 
Sphingolipidoses are a group of inherited metabolic disorders resulting from defects in sphingolipid metabolism. Which of the following is an example of a sphingolipidosis?

11. 
The enzyme deficiency responsible for Gaucher disease leads to the accumulation of which sphingolipid in cells?

12. 
Sphingolipids are found not only in cell membranes but also in small vesicles that play a crucial role in intracellular transport. What are these vesicles called?

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mcq on sphingolipids




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