It Is Likely to Be Painful to

question 51

Multiple Choice

It is likely to be painful to

• A) go up the social ladder.
• B) go down the social ladder.
• C) move on the social ladder, either up or down.
• D) remain at the same spot on the social ladder.

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Definitions:

Phospholipids

A class of lipids that are a major component of all cell membranes, forming bilayers that act as a barrier in cells.

Phosphorus

A chemical element with symbol P and atomic number 15, essential for life, involved in the formation of DNA and RNA, and a key component of ATP, the energy currency of cells.

Plasma Membrane

The plasma membrane is the lipid bilayer that encloses the cytoplasm of a cell, controlling the passage of substances in and out of the cell.

Sodium Chloride

Common table salt, a compound formed from sodium and chlorine atoms, essential for life and used in food seasoning and preservation.