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Which of the following statements best describes a macromolecule?
A macromolecule is made up of DNA and has a double helix shape.
A macromolecule is made of carbon, hydrogen, oxygen, and nitrogen and is in a ring like or linear structure.
A macromolecule is a polymer with a high molecular mass and includes four main groups: carbohydrates, lipids, proteins, and nucleic acids.
A macromolecule is a small particle that retains the physical properties of an element.

Answer :

I believe the answer is
A macromolecule is a polymer with a high molecular mass and includes four main groups: carbohydrates, lipids, proteins, and nucleic acids.
luisvaschetto

The statement that best describes a macromolecule should be macromolecule is a polymer with a high molecular mass and includes four main groups: carbohydrates, lipids, proteins, and nucleic acids.

  • Nucleic acids (DNA and RNA) are macromolecules composed of many subunits called nucleotides.

  • Proteins are macromolecules composed of amino acids that are held together by peptide bonds.

  • Polysaccharides (e.g., glycogen) are carbohydrate macromolecules composed of monomer subunits called monosaccharides (e.g., glucose molecules).

  • Lipids are a broad category of macromolecules composed of a glycerol backbone and fatty acid chains.  

In conclusion, the statement that best describes a macromolecule should be macromolecule is a polymer with a high molecular mass and includes four main groups: carbohydrates, lipids, proteins, and nucleic acids.

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