Which of the following is/are true? The extensive interactions observed between molecules within the extracellular matrix...
Which of the following is/are true?
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The extensive interactions observed between molecules within the extracellular matrix are present within a cell. |
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Proteins in the extracellular matrix are produced inside of a cell and then secreted. |
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Proteins in the extracellular matrix are always glycosylated. |
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Proteins in the extracellular matrix are synthesized and organized outside of a cell. |
Homework Answers
Only the second statement, i.e. "Proteins in the extracellular matrix are produced inside of a cell and then secreted" is true.
The cytoplasm is a very crowded place and many proteins remain compartmentalized. Therefore, the extensive interactions observed between molecules within the extracellular matrix may not be present within a cell. Hence, the first statement is incorrect.
Many, but not all, of the proteins in the extracellular matrix are glycosylated. Hence, the third statement is incorrect.
Protein synthesis does not take place outside of a cell. Hence, the last statement is also incorrect.
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