Connective Tissue Fibres Quiz

What is the primary function of connective tissue?

• To produce hormones

• To store energy

• To support and connect other tissues

• To provide electrical signals

Which type of collagen is most abundant in the body?

• Type IV

• Type I

• Type III

• Type II

Where is Type II collagen primarily found?

• Bone

• Cartilage

• Skin

• Liver

What is the repeating sequence found in collagen's structure?

• Lysine-Proline-Glycine

• Alanine-Valine-Proline

• Valine-Glycine-Alanine

• Glycine-X-Y

Which vitamin is crucial for the hydroxylation process in collagen synthesis?

• Vitamin D

• Vitamin C

• Vitamin B

• Vitamin A

What is the role of procollagen peptidases in collagen synthesis?

• To add hydroxyl groups

• To cleave the ends of procollagen

• To form disulfide bonds

• To transport collagen to the Golgi apparatus

What enzyme is responsible for forming cross-links in collagen?

• Prolyl hydroxylase

• Elastase

• Collagenase

• Lysyl oxidase

What is the main function of elastin in connective tissue?

• To allow tissues to stretch and return to shape

• To provide tensile strength

• To form a protective barrier

• To store calcium

Which condition is associated with a defect in Fibrillin type I?

• Rheumatoid arthritis

• Osteoporosis

• Marfan's syndrome

• Scurvy

What type of cross-links are unique to elastin?

• Disulfide bonds

• Desmosine cross-links

• Ionic bonds

• Hydrogen bonds