Question

1. what is a major function of fats in living organisms? 27. this figure shows a phospholipid. label it and des makes it perfect for forming cell membranes.

Explanation:

For question 26, fats in living organisms serve as an energy - storage molecule, providing a concentrated source of energy. They also act as insulators and protectors of organs. For question 27, a phospholipid has a hydrophilic (water - loving) head and hydrophobic (water - fearing) tails. The hydrophilic head contains a phosphate group and is attracted to water, while the hydrophobic tails are made of fatty acid chains and repel water. This amphipathic nature allows phospholipids to form a bilayer in an aqueous environment, with the hydrophilic heads facing the water and the hydrophobic tails facing each other, creating a barrier that is ideal for cell membranes.

Answer:

1. Fats are an energy - storage molecule, insulators, and organ protectors.
2. A phospholipid has a hydrophilic head and hydrophobic tails. Its amphipathic nature (hydrophilic head and hydrophobic tails) makes it perfect for forming cell membranes as it can create a bilayer in an aqueous environment with the hydrophilic heads facing water and the hydrophobic tails facing each other.