2. When a protein molecule is interacting with a charged molecule to cause a bon

Question

2. When a protein molecule is interacting with a charged molecule to cause a bond rotation in t protein molecule, its conformation/ configuration (circle one) is changed. (3 pts) How many water molecules are in 100 mL of pure water? The answer should be a whole number. Show your calculation. Use only the following information. The molar mass of wat is 18.2 g/mole (for this calculation). The density of water is 1 g/mL. The Avogadro number i x 1028 (the unit of this number is not provided here, but you need to use it). Assume no ionization of water. (3 pts) 3.

Explanation / Answer

1. Every protein has its individual novel configuration. If the temperature, pH of a protein's atmosphere is altered, or if it is presented to chemicals, the interactions may be interrupted. this interruption leads to a loss of the protein three-dimensional structure and which further turns into an unstructured string of amino acids. When a protein loses its high order arrangement, but not its primary sequence, it is stated as denatured. Denatured proteins are normally non-functional. denaturation can be converted For some proteins considering the primary structure of the polypeptide is still unimpaired it can fold into its functional form if restored to its standard environment. in the presence of chemical substances, the bonds between the proteins tend to break and thereby exposes hydrophobic (water-hating) amino acids which are usually present on the inside of the protein. The hydrophobic amino acids try to get away from the water surrounding them and will stick to one another, forming a protein network that gives the denatured structure.

2.  

no. of moles in 100 ml water =100/18

=5.55;

we know that the number of mole anything contain= Avogadro no.(6.023 x 10^23)

thus,

5.55 moles of water will have =5.55*6.023 x 10^23= 3.34276*10^24

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