The sources of carbohydrates are:
Correct answer: B. Green plants
- A. Bacteria
- B. Green plants
- C. Protists
- D. Protozoans
Explanation
Green plants are the primary source of carbohydrates in the ecosystem due to their ability to perform photosynthesis. This process allows them to convert sunlight, carbon dioxide, and water into glucose, a simple sugar, which serves as an energy source for themselves and other organisms. While some bacteria and protists (like algae) can also produce carbohydrates, they are not as significant as green plants. Protozoans, on the other hand, are consumers and do not produce carbohydrates, further solidifying green plants as the correct answer.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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