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Cell Bio Quiz 3
Terms in this set (10)
For some type of cells, there is a protecting cover outside of the plasma membrane called glycocalyx. What is the major component for the glycocalyx?_______________
carbohydrate chains of glycoproteins and glycolipids projecting out of the plasma membrane.
You place mammary gland epithelial cells in culture and then treat them with enzymes that digest the surrounding extracellular matrix. What happens?
The secretory and synthetic activities of the cells decrease.
Collagen is an important component in the extracellular matrix. It's functions in _______________.
resistant to the tensile strength
Proteoglycan is an important extracellular matrix component functioning in ___________.
resistant to the compression strength
What integral membrane protein family made of two membrane-spanning chains (a and b) is involved in attaching cells to their extracellular microenvironment?
In focal adhesion, large clusters of integrins bond to which component in the cytoplasm via various adaptors?
actin of the cytoskeleton
________ are members of an integral membrane glycoprotein family that bind to specific sugar arrangements in oligosaccharides that project from the surfaces of other cells.
What is the function of most IgSFs?
mediating specific interactions of lymphocytes with cells needed for the immune response
What determines the strength of adhesion between cells held together by cadherins?
the number of cadherins in a cluster connecting the cells
What kind of molecule does NOT pass through a gap junction?
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