Question:
Which of the following is present in the cornea?
Which of the following is present in the cornea?
Show Hint
Pair each GAG with its tissue; the clear cornea uses keratan and this sulfated GAG.
Updated On: Jun 24, 2026
- Hyaluronic acid
- Chondroitin sulfate
- Dermatan sulfate
- Heparan sulfate
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Glycosaminoglycans (GAGs) are long unbranched sugar chains attached to core proteins, and each type has a characteristic tissue distribution.
Step 2: The cornea is rich in keratan sulfate and chondroitin sulfate. These GAGs are arranged with the precisely spaced collagen fibrils that keep the cornea transparent. Hence chondroitin sulfate is the GAG found in the cornea among the options.
Step 3: Hyaluronic acid (option a) is abundant in synovial fluid, vitreous humor and loose connective tissue. Dermatan sulfate (option c) is typical of skin, blood vessels and heart valves. Heparan sulfate (option d) is found in basement membranes and cell surfaces.
Step 4: Matching each GAG to its tissue, the cornea corresponds to chondroitin sulfate, so option b is correct.
Step 2: The cornea is rich in keratan sulfate and chondroitin sulfate. These GAGs are arranged with the precisely spaced collagen fibrils that keep the cornea transparent. Hence chondroitin sulfate is the GAG found in the cornea among the options.
Step 3: Hyaluronic acid (option a) is abundant in synovial fluid, vitreous humor and loose connective tissue. Dermatan sulfate (option c) is typical of skin, blood vessels and heart valves. Heparan sulfate (option d) is found in basement membranes and cell surfaces.
Step 4: Matching each GAG to its tissue, the cornea corresponds to chondroitin sulfate, so option b is correct.
Was this answer helpful?
0
0
Top NEET PG Biochemistry Questions
- Which of the following clotting factors is needed for gamma-glutamyl carboxylase?
- A patient presented with diarrhea, dermatitis, and dementia. Which of the following vitamin deficiencies would you suspect in this patient?
- A young boy presents to the OPD with hypoglycemia and muscle cramps, on exertion or while playing. Then he becomes normal after resting for a while. These episodes are recurrent after a period of activity. He has decreased serum lactate and glucose levels. Which of the following diseases is he most likely to be suffering from?
- A family consumes only polished rice. Which of the following combinations of vitamin deficiency and enzymatic defect will be present in this family?
- A chronic alcoholic patient presented to the casualty with confusion, ataxia, and painful eye movements. What could be the vitamin deficiency seen in this patient?
View More Questions
Top NEET PG Questions
- A patient hailing from Delhi presents with fever, arthralgia, and extensive petechial rash for 3 days. Lab investigations revealed a hemoglobin of 9 g/ dL, a white blood cell count of 9000 cells/mm3, a platelet count of 20000 cells/mm3, and a prolonged bleeding time. The clotting time was normal. What is the most likely diagnosis?
- Which of the following statements is true about Trichomonas vaginalis?
- A lady from West Rajasthan presented with an ulcer surrounded by erythema on the right leg. Microscopy of the biopsy from the edge of the ulcer showed organisms with dark staining nuclei and kinetoplast. What is the most likely causative agent?
- A child presents with a fever and a rash. Urine examination showed cells with owl's eye appearance. What is the most likely diagnosis?
- Infection with Clonorchis sinensis is associated with an increased risk of__?
View More Questions