Food and Energy

The chemical building blocks provided by food are needed to grow and reproduce.

The energy stored in food is expressed in units of calories.

A calorie is the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius.

<p>Cells can use fats, proteins, and carbohydrates for food.</p> Signup and view all the answers

<p>Organisms need food to obtain the chemical building blocks required for growth and reproduction, as well as to acquire the energy necessary for their activities.</p> Signup and view all the answers

<p>The energy stored in food is expressed in units of calories.</p> Signup and view all the answers

<p>Cells can use fats, proteins, and carbohydrates as food, as these molecules contain energy-storing bonds that vary based on their chemical structures.</p> Signup and view all the answers