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Fibrous Proteins and Connective Tissue Quiz

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Fibrous Proteins and Connective Tissue Quiz

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Questions and Answers

What is the most abundant protein in the body?

Collagen (correct)

Elastin

Keratin

Fibrin

What is the primary role of lysyl oxidase in collagen synthesis?

Initiating transcription of collagen genes

Cross-linking collagen fibers (correct)

Inhibiting collagen synthesis

Promoting collagen degradation

Which vitamin is essential for collagen synthesis?

Vitamin D

Vitamin K

Vitamin E

Vitamin C (correct)

What is the main structural role of elastin in the body?

Providing elasticity to tissues Signup and view all the answers

What is the function of desmosine cross-link in elastin?

Providing stability to elastin fibers Signup and view all the answers

Which protein is the most abundant in the body?

Collagen Signup and view all the answers

What is the primary structural feature of fibrous proteins?

Long cylindrical/rope-like shape Signup and view all the answers

Which vitamin plays a key role in collagen synthesis?

Vitamin C Signup and view all the answers

What is the main structural difference between collagen and elastin?

Collagen has a triple helical structure, while elastin has a rubber-like structure Signup and view all the answers

What is the cross-linking amino acid unique to elastin?

Desmosine Signup and view all the answers