#Question id: 1268
#Unit 4. Cell Communication and Cell Signaling
The collagen triple-helix domain
a. is rich in glycine. b. is rich in proline.
c. is rich in hydroxyproline. d. is an alpha helix.
#Question id: 1270
#Unit 4. Cell Communication and Cell Signaling
Which of the following is a major extracellular molecule in mammals containing no protein portion?
#Question id: 1271
#Unit 4. Cell Communication and Cell Signaling
Common sugars found in proteoglycans include all of the following except:
#Question id: 1272
#Unit 4. Cell Communication and Cell Signaling
Collagen is exported from the endoplasmic reticulum as
#Question id: 1273
#Unit 4. Cell Communication and Cell Signaling
Proteoglycans are a group of cell-surface and extracellular-matrix substances that
#Question id: 1274
#Unit 4. Cell Communication and Cell Signaling
Which of the following are included as functions of the extracellular matrix?
a. supporting differentiation b. synthesis of procollagen
c. binding growth hormones d. filtering