Identify the correctly matched triplet of a biomolecule, its biochemical category, and its primary cellular location or occurrence based on NCERT descriptions.

Step-by-step solution

Lecithin is a phospholipid, which contains phosphorus and a phosphorylated organic compound. It is a key structural component found in the cell membrane. Option 1 is incorrect because lecithin is a conjugated lipid (phospholipid), not a simple lipid. Option 2 is incorrect because triglycerides are simple lipids (esters of glycerol and fatty acids), not phospholipids. Option 4 is incorrect because palmitic acid is a fatty acid, not a phospholipid, and lipids are not primary components of the plant cell wall. Answer: