SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All proteins have the same function, to encode genes.
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Proteins that have different structures will have different functions.
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Protein structure does not affect the protein at all.
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What is a protein?
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Detailed explanation-1: -No two proteins with different amino acid sequences (primary structure) have identical overall structure. The unique amino acid sequence of a protein is reflected in its unique folded structure. This structure, in turn, determines the protein’s function.
Detailed explanation-2: -The sequence of amino acids determines each protein’s unique 3-dimensional structure and its specific function. Amino acids are coded by combinations of three DNA building blocks (nucleotides), determined by the sequence of genes.
Detailed explanation-3: -The Many Different Types of Proteins Different proteins are produced because there are twenty types of naturally occurring amino acids that are combined in unique sequences.
Detailed explanation-4: -Rules of Protein Structure The type determines the function of a protein. A protein’s shape is determined by its primary structure (the amino acid sequence). The amino acid sequence within a protein is determined by the encoding sequence of nucleotides in the gene (DNA).
Detailed explanation-5: -Protein function is directly related to the structure of that protein. A protein’s specific shape determines its function. If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected.