In the human erythrocyte membrane,the percentage of protein $P$ and lipid $Q$ is respectively:

When cylindrical pieces of beetroot are washed with cold water or ice,the anthocyanin pigment does not leak out. What does this indicate about the behavior of the cell membrane?

Where are the 'ion channels' located?

Identify $X, Y, Z$ from the given figure of the cell membrane:

Which one statement regarding the plasma membrane is correct?

The membrane that covers the cytoplasm on the outermost side is: