Carbohydrates are a type of biological macromolecule required to carry out life functions. Which of the following is NOT true regarding carbohydrates? A. Monomers of starch are sugars such as glucose.

B. Living things store extra sugars as complex carbohydrates.

C. They contain carbon, hydrogen and oxygen, usually in the ratio of 1:2:1.

D. Carbohydrates are the main component that makes up cell membranes

The statement 'carbohydrates are the main component that makes up cell membranes' is NOT true (Option D).

In conclusion, the statement 'carbohydrates are the main component that makes up cell membranes' is NOT true (Option D).

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D. Carbohydrates are the main component that makes up cell membranes

Explanation:

The main component of the cell membrane is a double layer of phospholipids - molecules with a phosphate head and fatty acid tail. Therefore D is incorrect. There are some carbohydrates in the cell membrane, but they are not the main component.

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