Biomembranes & Cellular Transport

Question 1

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Answer 1

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Question 2

Do hydrophobic or hydrophillic molecules easily cross the phospholipd bilayer?

Answer 2

Hydrophobic molecules can easily cross the cell membrane because they are similar in nature to the lipid bilayer. On the other hand, hydrophilic (water-attracting) molecules cannot easily cross the cell membrane because they are repelled by the hydrophobic core of the lipid bilayer.