What fatty compound makes up cell membranes??
A. Proteins
B. Carbohydrates
C. Glucose
D. Lipids
D. Lipids
The correct answer is D. Lipids.
The fatty compound that makes up cell membranes is lipids.
To arrive at this answer, let's break down the given options:
A. Proteins: While proteins are important components of cell membranes, they are not primarily responsible for the structure and integrity of the membrane. Proteins are more involved in functions such as transport and communication within the cell.
B. Carbohydrates: Carbohydrates are another component of cell membranes, but they mainly play a role in cell recognition and signaling.
C. Glucose: Glucose is a type of sugar and an energy source for cells, but it is not the compound that forms the main structure of the cell membrane.
D. Lipids: Lipids are the correct answer. They are crucial constituents of cell membranes and form the phospholipid bilayer, which provides the main structure and barrier to the cell membrane. Lipids also contribute to the fluidity and permeability of the membrane.
Therefore, the correct answer is D. Lipids.