What Compound Has the Highest Concentration in a Cell

Question

What compound has the highest concentration in a cell?
A)CO2
B)CH4
C)H2O
D)glucose
E)NH3

Accepted Answer

The compound with the highest concentration in a cell is usually water. However, among the options given, the compound with the most atoms and therefore likely the highest concentration is H₂O, which is a variation of phosphatidylcholine (a type of phospholipid), found in the cell membrane.