Question

Which statement is NOT true about amino acids and proteins?

a) The bond between amino acids is called the peptide bond
b) Proteins are single stranded polymers
c) Amino acids are the building blocks of proteins
d) All proteins have the same amino acids

Answer 1

The statement that is incorrect is that all proteins have the same amino acids. In fact, proteins consist of different combinations of 20 standard amino acids which determine their unique structures and functions. Correct option is d)

Step-by-step explanation:

The statement that is NOT true about amino acids and proteins is: d) All proteins have the same amino acids. Proteins are composed of amino acids, which are their building blocks, and these amino acids join through a process called dehydration synthesis. The bond formed between amino acids is known as a peptide bond. Each protein is unique due to its sequence and number of amino acids, and not all proteins contain the same amino acids. The variability and distinct sequences of the 20 different standard amino acids allows for the formation of thousands of different proteins, each with specific functions within an organism. Therefore, it is incorrect to state that all proteins have the same amino acids as the combination and order of amino acids determine a protein's specific structure and function.