The size of a protein molecule at primary level is determined by:
Correct answer: D. Number and sequence of amino acids
- A. Number of amino acids
- B. Type of amino acids
- C. Number and type of amino acids
- D. Number and sequence of amino acids
Explanation
The primary structure of protein is determined by number and sequence of amino acids. For example, primary structure of insulin consists of 51 amino acids that are arranged in two chains in a specific sequence.
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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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