NUTRITION
PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a protein that transport oxygen in the blood to all cells in the body
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a molecule that combines with other amino acid molecules to make proteins
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a protein that always forms into a ball shape
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a protein that always forms a chain
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Detailed explanation-1: -A protein molecule is made from a long chain of these amino acids, each linked to its neighbor through a covalent peptide bond (Figure 3-1). Proteins are therefore also known as polypeptides. Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next.
Detailed explanation-2: -Peptide Bonds Each amino acid is attached to another amino acid by a covalent bond, known as a peptide bond. When two amino acids are covalently attached by a peptide bond, the carboxyl group of one amino acid and the amino group of the incoming amino acid combine and release a molecule of water.
Detailed explanation-3: -A protein consists of one or more chains of amino acids (called polypeptides) whose sequence is encoded in a gene.