INTRODUCTION TO MICROSCOPY CELL BIOLOGY
CYTOSKELETON
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
collagen
|
|
|
keratin
|
|
|
actin
|
|
|
None of the above
|
Detailed explanation-1: -Intermediate filaments in epithelial cells (i.e. keratin filaments) are made of keratins and these keratins are found only in vertebrates (Steinert et al.
Detailed explanation-2: -Keratin (/ˈkɛrətɪn/) is one of a family of structural fibrous proteins also known as scleroproteins. Alpha-keratin (-keratin) is a type of keratin found in vertebrates. It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, and the outer layer of skin among vertebrates.
Detailed explanation-3: -The hair and nails contain a protein known as keratin. These proteins are also responsible for the formation of the intermediate filaments. These filaments are assembled to produce a dimeric and tetrameric structure.