Which of the following is Not a way that fats are used in living things?
To give plants rigidity
As parts of biological membranes
To store energy
As chemical messengers
To give plants rigidity
Which of the following is Not true about lipids?
Lipids are macromolecules
Lipids are polymers
Lipids are made up of fatty acids and glycerol
Lipids are fats and oils
Lipids are polymers
Which of the following is Not a function of proteins?
Control the rate of reactions and regulate cell processes
Used to form bones and muscles
Help to fight disease
Store and transmit heredity
Store and transmit heredity
The correct answer is: To give plants rigidity.
To determine which of the given options is not a way that fats are used in living things, we will analyze each option individually:
1. To give plants rigidity: Fats are not primarily responsible for providing rigidity in plants. Instead, plants utilize cellulose and other structural components to maintain their rigidity.
2. As parts of biological membranes: Fats, specifically phospholipids, are integral components of biological membranes. They form a lipid bilayer that surrounds cells and organelles, providing structure and regulating the movement of molecules.
3. To store energy: Fats serve as an essential energy storage molecule in living organisms. When energy intake exceeds immediate energy demands, excess energy is converted into fats for storage in adipose tissue.
4. As chemical messengers: Fats, specifically certain hormones called steroids, can act as chemical messengers in the body. Steroid hormones, such as estrogen and testosterone, are derived from cholesterol, a type of fat, and help regulate various physiological processes.
From the analysis, we can conclude that the first option, "To give plants rigidity," is not a way that fats are typically used in living things.