Which of the following is NOT a macromolecule? (2021)

Which of the following is NOT a macromolecule? (2021)

Step 1: Understand what a macromolecule is. Macromolecules are large molecules that are essential for life, such as proteins, carbohydrates, and lipids.
Step 2: Identify the options given in the question. We need to find out which one is NOT a macromolecule.
Step 3: Recognize that water is a small molecule. It is made up of two hydrogen atoms and one oxygen atom (H2O).
Step 4: Compare water with the other options. Proteins, carbohydrates, and lipids are all large and complex molecules.
Step 5: Conclude that since water is small and not complex, it is NOT a macromolecule.

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