Question

which organic compound is not only responsible for energy storage, but can also provide thermal insulation?
nucleic acids
proteins
lipids
carbohydrates
question 10 1 pts
which is the main structural component of the walls that surround plant cells?
starch
cellulose
phospholipids
glycogen
question 11 1 pts
which of the following fatty acids include one or more adjacent pairs of carbon atoms joined by a double bond?
trans fatty acids
unsaturated fatty acids
saturated fatty acids
polyunsaturated fatty acids

Explanation:

1. Lipids are known to be energy - storage molecules and also provide thermal insulation in organisms. Nucleic acids store and transmit genetic information, proteins have various functions like catalysis and structure but not majorly energy storage and insulation, and carbohydrates are mainly for quick - energy supply.
2. Cellulose is the main structural component of plant cell walls, providing rigidity and support. Starch is an energy - storage molecule in plants, phospholipids are important for cell membranes, and glycogen is an energy - storage molecule in animals.
3. Unsaturated fatty acids have one or more double bonds between adjacent carbon atoms. Trans fatty acids are a type of unsaturated fatty acid with a specific configuration, saturated fatty acids have only single bonds, and polyunsaturated fatty acids are a subset of unsaturated fatty acids with multiple double bonds.

Answer:

1. Lipids
2. Cellulose
3. Unsaturated fatty acids