Which Structure is Described as a Semipermeable Lipid Bilayer

Question

Which structure is described as a semipermeable lipid bilayer?
A) Lysosome
B) Mitochondrion
C) Ribosome
D) Cell membrane

Accepted Answer

The cell membrane is a semipermeable lipid bilayer that separates the cytoplasm from the extracellular environment. It is composed of phospholipids, proteins, and carbohydrates, and regulates the passage of molecules in and out of the cell. Lysosomes, mitochondria, and ribosomes are cellular organelles that have different structures and functions.