which statement is true for all proteins

3 answers

One statement that is true for all proteins is that they are composed of amino acids linked together by peptide bonds. The sequence and composition of these amino acids determine a protein's unique structure and function. Additionally, all proteins exhibit levels of structure, including primary, secondary, tertiary, and sometimes quaternary structures.

their structure is related to their function,They carry oxegyn in human blood, They are created by mutations in DNA, their main functions is to cause mutations

Among the statements you've provided, the one that is true for all proteins is: "Their structure is related to their function."

This concept is fundamental in biology. The specific sequence of amino acids in a protein determines its three-dimensional structure, which in turn affects how the protein behaves and interacts with other molecules.

The other statements are more specific and not universally applicable to all proteins:

  1. "They carry oxygen in human blood" - This specifically refers to hemoglobin, a type of protein, but not all proteins have this function.

  2. "They are created by mutations in DNA" - While mutations can lead to the creation of new proteins or affect existing ones, proteins themselves are not created by mutations; they are synthesized from the genetic code that may be altered through mutations.

  3. "Their main function is to cause mutations" - This is not accurate; proteins have a wide variety of functions, including catalyzing biochemical reactions (enzymes), signaling, structural roles, and more. Causing mutations is not a primary function of proteins.

So, the first statement is the most universally applicable to all proteins.

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