Biochemistry Wgu Task 1 Fat

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The Role of Fat and it's importance in our diet !1 LIPIDS • Lipids are non soluble molecules that include fats, waxes, sterols, & phospholipids. Lipids main function is storing energy, sending chemical messages in cells, and are components in cell membranes. Lipids make up adipose tissue which is a connective tissue that is made up of lipid cells called adipocytes. Lipids can also be metabolized leading to a large amount of ATP (energy in the body) production. When Lipids are broken down they are broken into a glycerol molecule and fatty acids. Each of the fatty acids are then separated into 2 carbon groups and then converted to acetyl CoA. Then each acetyl CoA will enter the Kreb cycle (the citric acid cycle) making 12 ATP per Acetyl couple. !2 • • A1 Saturated Fat -Solid at room temperature -Carbon atoms have a single bond between them and are saturated with hydrogen atoms - They stack well because they are saturated with hydrogen making them solid at room temperature -Our body makes mostly saturated fats -They are mostly animal based (butter, cheese, lard) Unsaturated Fat -Liquid at room temperature -Have at least one double bond between the carbon atoms and can absorb more hydrogen atoms -They are unable to stack because the double bond leaves them kinked making them liquid at room temperature -Cell membranes need unsaturated fat -Mostly plant based (olive oil, corn oil, sunflower oil) !3 A2 Saturated Fatty Acid A2a !4 Unsaturated Fatty Acid A2a !5 The role of fatty acid in the body • 1 Triglycerides- store energy, insulate the body,and provide protection to the bodies organs 2 Phospholipids- a basic part of the cell membrane which have a polar head which is hydrophilic and a hydrophobic tail 3 Waxes- a lipid which provides protection in the inner ear. 4 Steroids- A) a

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