Since a protein can have hundreds of amino acids will or wil

Since a protein can have hundreds of amino acids, will or will not the change of one amino acid affect the function of the protein? Use an example to explain. Besides fats, what are some other kinds of lipid that you can find in the human body? Name one and give its function in the human body. A food manufacturer is advertising a new cake mix as fat-free. Scientists at the FDA are testing the product to see if it truly lacks fat. They did a hydrolysis to the cake mix, which is a reaction that can break down the food molecules. The hydrolysis yields glucose, fructose, glycerol, and some very long hydrocarbon chains with a carboxyl group (C=O) at the end. Based on this result, do you think if this cake mix is really fat-free as it is advertised? Why or why not?

Solution

1. Protein are complex molecule. Each type of protein has a unique three-dimensional shape , determined by how the protein is folded. If it does not fold up in correct shape, it cannot carry out its function in the cell.

A protein is held in its shape by bonds formed between amino acids which are spaced out along the protein molecule. If the wrong amino acid is present, the bonds cannot be formed so the protein cannot take its correct shape and carry out its function. For example: the disease sickle cell anaemia is caused due to a single incorrect amino acid in the haemoglobin molecule-a fatal condition.

2. Lipids are class of organic compound that are fatty acids or their derivatives and are insoluble in water and soluble in organic solvent. Three types of lipids found in foods and in body\'s cells or tissues are Triglycerides, sterols, and phospholipids.

Function of triglyceride: They provide insulation that keep you warm while protecting your internal organs with a layer of padding. Example: palmitic acid, oleic acid , etc.

3. No, the cake mix is not fat free as :