Bell Ringer Hand in homework to proper bin Which scientist is responsible for binomial nomenclature? What words to you associate with regulation? Identify an example of regulation. Explain what biomagnification is. You have a quiz after this.

BioChem Quiz #1 When finished hand into station #7 and answer these questions on lined paper Differentiate between inorganic and organic compounds and identify four examples of each using the chemical and structural formula. Explain the difference between atom, element, molecule, and compound. All ____________________ end in –ose. Define lipid, glycerol, fatty acid, saturated, unsaturated, phospholipid, hydrophobic, hydrophilic, and steroid.

Lipid Lab Class Set: Write answers on separate sheet of paper Don’t Glob. You want a light layer of each test. What does translucent mean?

Lipids Primary function  store LONG TERM energy Contain C, H, and O Contain more C-H bonds than carbs  better energy source Subunits are… Glycerol (containing a hydroxyl group -OH) Fatty acids (containing a hydrocarbon chain) Combine to form a triglyceride

Types of Lipids Fats Phospholipids Sterols Waxes

Functions Long term energy storage Cell Membranes Cushion Organs Insulates Body

Monomer - Triglycerides 3 fatty acids attached to 1 glycerol Triglycerides are most common Triglycerides store twice as much energy as complex carbs Unsaturated  one or more double bonds Saturated with only single bonds Fatty acid (unsat.) Glycerol Fatty Acid (saturated)

Saturated vs. Unsaturated - Most animal fats Solid at room temperature Limit amount in your diet Contributes to heart disease Plants, vegetables, & fish fats Liquid at room temperature Better choice in your diet.

Phospholipids Hydrophobic fatty acid tails Phosphate head is hydrophilic (orange area) Main component of cell membranes

Sterols 4 fused carbon rings with functional groups Cholesterol: most common type in animals Functions include: membrane components and hormones (testosterone & estrogen)

Waxes Tightly packed long-chain fatty acids linked to long- chain alcohols or carbon rings All repel water Found on the outer covering of a leaf (cuticle)

Finish Lipid Lab Answer Conclusion Questions on separate sheet of paper. Make sure to write down the lab questions and answer below. Throw away brown paper bag when finished and wipe up lab station. Return to seat with lab. We will be adding to it.

Comparison Chart Create a chart comparing carbohydrates and lipids.