Lipids Do Now n Answer the following questions
- Slides: 14
+ Lipids
+ Do Now n Answer the following questions: n. What are the monomers of carbohydrates called? n. What are the polymers of carbohydrates called? n. Name 3 foods that are carbohydrates?
+ Lipids are organic molecules composed mostly of C and H. Lipids are not soluble in water. Copyright Pearson Prentice Hall
+ Lipids The common categories of lipids are: n fats n oils n waxes n steroids Copyright Pearson Prentice Hall
+ Lipids are used to store energy. Where is the energy in this molecule located? Copyright Pearson Prentice Hall
+ Lipids do not have monomers or polymers. XX Copyright Pearson Prentice Hall
+ Lipids Which molecule contains more energy? Lipid molecule Glucose molecule The amount of energy in a molecule depends on the number of bonds it contains. Which molecule has more energy: glucose (a sugar) or a lipid?
+ Types of Lipids n Saturated fats such as butter, which you get from animals n Butter comes from a cow’s milk n Unsaturated fats such as oil, which you get from plants n Olive oil is a type of oil that comes from olives
+ Lipids Saturated Fats Saturated fats are generally animal products. Having all the spaces for H atoms filled means that saturated fats are solid at room temperature.
+ Lipids Unsaturated Fats Unsaturated fats are generally plant products (olive oil, nuts, etc. ) Having some H atoms missing means that saturated fats are liquid at room temperature.
+ Lipids Formation n. Two building blocks of lipids are: fatty acids and glycerol n. Lipids are made of 3 fatty acids attached to glycerol
+ Fatty Acids of Lipids n The fatty acids of the lipid has two parts: an hydrophilic head (water-loving) and a hydrophobic tail (water-fearing) n The form of the fatty acid causes the lipid to not be to dissolve in water
+ Lipids as Long-Term Storage n. Lipids are used for long-term energy storage n Because lipids are fat, they contain more calories and so it can store the calories to be used later
+ Lipids When molecules of saturated fat enter the bloodstream, they can form plaque and clog arteries. Atherosclerosis Animation
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