MCQ on Glycosaminoglycans: Structure and Functions




Glycosaminoglycans (GAGs) are long, unbranched polysaccharides made of repeating disaccharide units. Found in connective tissues, they provide structural support, regulate hydration, and contribute to the lubrication and resilience of cartilage, skin, and other extracellular matrix components in organisms. This is an MCQ on Glycosaminoglycans (MCQ on GAGs).

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1. 
What are glycosaminoglycans (GAGs)?

2. 
Which of the following is a common example of a glycosaminoglycan?

3. 
GAGs are composed of repeating disaccharide units. What are the two major monosaccharides found in these units?

4. 
What is the primary function of hyaluronic acid, a type of GAG, in the body?

5. 
Where is chondroitin sulfate, another GAG, commonly found in the body?

6. 
Heparan sulfate is a GAG that plays a key role in what biological process?

7. 
Which type of GAG is involved in the formation of the mucus layer that protects the gastrointestinal tract?

8. 
What is the significance of GAGs in the extracellular matrix of tissues?

9. 
Which enzyme is responsible for the degradation of glycosaminoglycans in the body?

10. 
Which of the following is a therapeutic use of heparin, a GAG?

11. 
What is the structure of GAGs that imparts their high viscosity and water-binding capacity?

12. 
Which of the following diseases is associated with abnormal glycosaminoglycan storage, leading to various physical and cognitive impairments?

13. 
What is the role of GAGs in the regulation of cell behavior and signaling?

14. 
Which of the following is NOT a function of glycosaminoglycans in the body?

15. 
In the context of GAGs, what is the importance of the sulfate groups often found in their structure?

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MCQ on Glycosaminoglycan






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