Do Now Final readings on water lab Final readings on water lab Fold pink paper to make four equal sections. Make a color coded concept map that compares organic compounds as shown on the other whiteboard. Write answers from the key in the five boxes. Fold pink paper to make four equal sections. Make a color coded concept map that compares organic compounds as shown on the other whiteboard. Write answers from the key in the five boxes.

Where do our cells get energy? carbohydrates and lipids in living things

Organic Compounds with a “backbone” Organic compounds are compounds that contain carbon. Organic compounds are compounds that contain carbon. Carbohydrates and lipids are made with a carbon backbone, and other elements are attached to those. Carbohydrates and lipids are made with a carbon backbone, and other elements are attached to those. Both are made up of Carbon, Hydrogen and Oxygen only. Both are made up of Carbon, Hydrogen and Oxygen only.

Carbohydrates and Lipids Main source of energy for cells for both plants and animals Main source of energy for cells for both plants and animals Carbohydrates provide immediate energy. Carbohydrates provide immediate energy. Lipids provide energy which is stored. Lipids provide energy which is stored.

Carbohydrates Examples =  sugar (simple carbohydrate)  starch (complex carbohydrate)

Carbohydrate #1 - Sugar Sugar - produced by plants in photosynthesis. Fruits and vegetables are high in sugar

Carbohydrate #2 - Starch Plants store excess energy in the form of starch. Starches are made up of a chain of sugar molecules connected together. (sugar = monomer, starch = polymer) Examples of plant foods that contain starch: potatoes, rice, pasta, and bread Biology Basics ~ Identifying Carbs

How do we get the energy from sugars and starches? When eaten, our bodies break starch molecules into sugar that our cells can use for energy.

So what do carbs do? Plants contain cellulose (a carb) which makes up their cell wall. Glucose in cells is used immediately to complete cell processes like creating new ribosomes or making repairs to organelles.

Lipids Lipids include fats (from animals), oils (from plants) and waxes. Lipids include fats (from animals), oils (from plants) and waxes. Olive oil, eggs, whole/2%/1% milk and fish are good sources of lipids. Olive oil, eggs, whole/2%/1% milk and fish are good sources of lipids.

Fatty Acids and Glycerol Both are considered to be MONOMERS for lipids. Both are considered to be MONOMERS for lipids. 1 glycerol + 3 fatty acids = 1 LIPID 1 glycerol + 3 fatty acids = 1 LIPID 3 Fatty Acids +1 Glycerol = 1 Lipid

Lipids are a source of stored energy in living organisms. Lipids are a source of stored energy in living organisms. Extra food that is not immediately needed as a source of energy is changed to fat and stored. Extra food that is not immediately needed as a source of energy is changed to fat and stored. Animals that hibernate Animals that hibernate live off the fat stored in their cells. Energy from lipids

So what do lipids do? In living organisms, lipids form most of the cell membrane structures. They also create a layer under our skin to retain heat.