#Question id: 1300
#Unit 4. Cell Communication and Cell Signaling
Which of these is NOT a component of plant cell walls?
#Question id: 1301
#Unit 4. Cell Communication and Cell Signaling
The cell walls of bacteria, fungi, and plant cells, and the extracellular matrix of animal cells are all external to the plasma membrane. Which of the following characteristics are common to all of these extracellular structures?
#Question id: 1302
#Unit 4. Cell Communication and Cell Signaling
A mutation that disrupts the ability of an animal cell to add polysaccharide modifications to proteins would most likely cause defects in which of the following organelles or structures?
#Question id: 1303
#Unit 4. Cell Communication and Cell Signaling
What is a primary function of integrins?
#Question id: 1304
#Unit 4. Cell Communication and Cell Signaling
Which of the following structures form cytoplasmic channels that connect adjacent plant cells through the cell walls?
#Question id: 1305
#Unit 4. Cell Communication and Cell Signaling
Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through: