Problemas
Which major group of macromolecules are the lastest source of energy? A. lipids B. proteins C. nucleic acids D. carbohydrates
Roztwór
Leonardo
veterano · Tutor durante 10 años
4.6
(202 Votos)
Respuesta
The correct answer is A. Lipids.
Explicación
## Step 1The question asks us to identify which major group of macromolecules is the lastest source of energy. The options provided are lipids, proteins, nucleic acids, and carbohydrates.## Step 2Lipids, such as fats and oils, are the most energy-dense macromolecules. They provide more than twice the energy per gram compared to carbohydrates and proteins. Lipids are primarily used for long-term energy storage in the body.## Step 3Proteins, while they can be used for energy, are primarily used for building and repairing tissues. They are not the primary source of energy.## Step 4Nucleic acids, such as DNA and RNA, are not used for energy. They are used for storing and transmitting genetic information.## Step 5Carbohydrates are the body's primary source of energy, but they are not the lastest source of energy. They are used for immediate energy needs, not long-term storage.