Large hydrophilic molecules cannot easily cross a plasma membrane due to the presence of which one of the following molecules in the membrane.
A. proteins
B. cholesterol
C. glycoproteins
D. phospholipids
Hydrophilic molecules are 'water-loving,' so is there anything in the answer options that is present in the plasma membrane and has a 'water hating' (hydrophobic) component that would not allow such a molecule to pass? Think about what the plasma membrane is composed of.
The main component of a plasma membrane
A. protein
B. carbohydrate
C. lipid
D. cholesterol
Again, it would be good to search up a diagram of the plasma membrane and take a look at all its components to answer this one.
Hey guys, Was wondering if you guys could help me with this question. Would it be C
Good job, C is correct! Here the concept being tested is osmosis, and the water will want to move from a low concentration to a high concentration of solute. As the cell has been placed in a hypertonic solution (more solute/sucrose on the outside), the water moves out of the cell and it shrinks.