Question

The following table describes several molecules and their functions. The molecules all belong to the same class.


Molecule Function
Oleic acid used for energy storage and insulation in whales
Phospholipid component of cell membranes in plants and animals
Brassinosteroid steroid hormone involved in pollen elongation in plants

Which class of biomolecule do the molecules in the table belong to?

Answer 1

Answer:

oleic acid is a fat ,

phospholipids are components of biomacromolecules.

brassinosteroid is a hormone ......micromolecules

Answer 2

Answer:

The correct answer is lipids.  

Explanation:

Oleic acid is a fatty acid with carbon number 18 and formula $C_{18} H_{34} O_{2}$. It is a component of the fat that is stored in the body. In whales, there’s a thick layer of subcutaneous fat.  

• Phospholipids are the main component of the cell membranes. They have the hydrophobic tail made of fatty acids and the hydrophilic head made of phosphate ion.  
• Brassinosteroid is a steroid derived from cholesterol which is a lipid. It is a hormone used in pollen elongation.