7 Questions
What are the chemical building blocks provided by food?
The chemical building blocks provided by food are needed to grow and reproduce.
How is energy stored in food expressed?
The energy stored in food is expressed in units of calories.
What is a calorie?
A calorie is the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius.
What are the types of molecules that cells can use for food?
Cells can use fats, proteins, and carbohydrates for food.
Why do organisms need food?
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.
How is the energy stored in food expressed?
The energy stored in food is expressed in units of calories.
What are the types of macromolecules that cells can use for food?
Cells can use fats, proteins, and carbohydrates as food, as these molecules contain energy-storing bonds that vary based on their chemical structures.
Test your knowledge of food and energy with this quiz! Explore the chemical building blocks of food, learn about calorie units, and discover how living organisms obtain energy from food molecules.
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