Question

_______________ cell junction is mediated by integrin.
a. Gap b. Hemidesmosomes
c. Desmosomes d. Adherens​

Answer 1

Answer:

Answer is.. Option D. Adherens

Explanation:

Adherens cell junction is mediated by integrin.

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Answer 2

The correct answer is : b. Hemidesmosomes.

Explanation:

• Hemidesmosomes are responsible for attaching the cells to the extra-cellular matrix.
• They are mostly made up of integrins.
• Integrins are transmembrane proteins which can act as receptor to various ligands like collagen, fibronectin, laminin and help the cells to adhere themselves to the matrix.
• Usually integrins are heterodimeric proteins comprising of alpha and beta subunits.
• Towards the inside of the cell, integrins can bind to microfilaments present in the cytoplasm.
• They also help in transducing signals across the cell membrane.