Final Answer:
Type of lipid to a description of its chemical structure:
1. Fatty acid: a. chain of carbons flanked by hydrogens.
2. Triglyceride: b. glycerol backbone with three fatty acids.
3. Phospholipid: c. glycerol backbone with fatty acids and at least one phosphorus-containing group.
4. Sterol: d. multi-ringed compound with a hydroxyl group.
Step-by-step explanation:
Type of lipid to a description of its chemical structure:
1. Fatty acid: a. chain of carbons flanked by hydrogens. Fatty acids are long hydrocarbon chains with a carboxyl group at one end. They can be saturated (all single bonds) or unsaturated (containing double bonds).
2. Triglyceride: b. glycerol backbone with three fatty acids. Triglycerides consist of a glycerol molecule bonded to three fatty acid chains. They serve as a common storage form of energy in adipose tissue.
3. Phospholipid: c. glycerol backbone with fatty acids and at least one phosphorus-containing group. Phospholipids have a glycerol backbone, two fatty acids, and a phosphate-containing group. They are essential components of cell membranes, with hydrophobic tails and hydrophilic heads.
4. Sterol: d. multi-ringed compound with a hydroxyl group. Sterols, like cholesterol, are multi-ringed compounds with a hydroxyl group. They play crucial roles in cell membranes and serve as precursors for hormones.