Describe the roles of each of the following components of the ECM:

a. Collagen fibers

Video transcript

Hey, everyone. Let's take a look at this question together which protein in the extracellular matrix or the ECM is known for its tensile strength and gives tissues their mechanical resistance to stretching. Is it answer choice? A fibronectin answer choice B proteoglycan answer choice C Tennison or answer choice D collagen. Let's work this problem out together to try to figure out which of the following answer choices is the protein in the extracellular matrix that is known for its tensile strength, giving tissues their mechanical resistance to stretching. So, in order to solve this question, we have to recall the different proteins of the extracellular matrix or the ECM that are known for their tensile strength, giving the tissues, mechanical resistance to stretching. And we know that when we're talking about both tensile strength and giving tissues mechanical resistance to stretching, we are talking about the protein collagen since collagen is known for its tensile strength and gives tissues their mechanical resistance to stretching. Because collagen consists of interlocking strands which collectively contribute to the structural integrity of various tissues in the body. And it is the predominant protein that is responsible for tensile strength and mechanical resistance to stretching it the extracellular matrix. So answer choice D collagen is the correct answer. And while answer choices A B and C are related to the extracellular matrix. Answer choices A B and C do not provide that tensile strength and the mechanical resistance to stretching which collagen is responsible for. I hope you found this video to be helpful. Thank you and goodbye.