alleryStart learning →Which protein is the most abundant component of the extracellular matrix?
AKeratin fibers
BCollagen fibers
CCadherin links
DConnexin rings
Answer & Solution
Correct answer: B. Collagen fibers
1. Most animal cells release materials into the extracellular space.
2. The primary components of those materials are proteins.
3. The most abundant of those proteins is collagen.
4. Cadherins and connexins are junction proteins sitting in the plasma membrane, not matrix components.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.6 Connections between Cells and Cellular Activities_
Keep practising Cell Structure
Browse all Cell Structure questions for CSIR NET, or explore more Biology topics.
Related questions
What do gap junctions and plasmodesmata have in common?Why are gap junctions especially important in cardiac muscle?How many connexin proteins arrange themselves to form one connexon?Desmosomes keep cells in sheets in which kinds of tissue?A desmosome is built from cadherins linked to which cytoskeletal element?Tight junctions in the lining of the urinary bladder serve which purpose?Which two proteins predominantly hold a tight junction together?Which tissues carry out most of the long-distance transport of water in a plant?