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Life on Earth comes in many forms, from microscopic bacteria to giant redwood trees. Despite their differences, all living things are made up of the same types of molecules. Many of these molecules contain carbon and are called organic compounds. There are four main groups of organic compounds found in cells. One of these groups is carbohydrates. Which of the following are the primary functions of carbohydrates? Select the two best choices.
Starch and glucose are carbohydrates that can serve as energy sources for cells. To use starch for energy, plants and animals must first break down the starch into glucose molecules. Complete the sentence.
Starch is a .................., and glucose is a ..........................
The model below represents the chemical structure of cellulose, a complex carbohydrate. This model shows that cellulose is made up of many simple sugars linked together in a chain. Cellulose can be made up of thousands of sugars. Only a section of a cellulose molecule is shown in the model. Which of the following models represents the simple sugar that is the building block of cellulose?
Carbohydrates come in different sizes. Complex carbohydrates are large compounds made up of many small carbohydrate molecules. These small molecules are sometimes called building blocks. Complete the sentence.
Complete the text.