CELL STRUCTURES AND FUNCTION
BIO MOLECULES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Each protein has its own unique shape. If the temperature or pH of a protein’s environment is changed, or if it is exposed to chemicals, these interactions may be disrupted, causing the protein to lose its three-dimensional structure and turn back into an unstructured string of amino acids.
Detailed explanation-2: -Proteins come in a wide variety of shapes, and they are generally between 50 and 2000 amino acids long. Large proteins generally consist of several distinct protein domains-structural units that fold more or less independently of each other, as we discuss below.
Detailed explanation-3: -Proteins tend to fold into 3-dimensional shapes. Answer (b) is also false because proteins can be made of just a few amino acids or as many as 1000s of chains of amino acids. Proteins do contain peptide chains that interact with each other. If they lose their 3-dimensional shape, they will lose their function.
Detailed explanation-4: -Answer and Explanation: Protein structure affects its function because proteins have a specific three dimensional shape that allows them to do their job inside the cell.
Detailed explanation-5: -Proteins fold up into specific shapes according to the sequence of amino acids in the polymer, and the protein function is directly related to the resulting 3D structure. Proteins may also interact with each other or other macromolecules in the body to create complex assemblies.