CO: I will understand and identify the structure and function of a carbohydrate. LO: I will write notes and build a carbohydrate.

Notes: Biomolecules Biomolecules are the molecules found in all living things. Biomolecules are organic compounds. – Organic compound contain the element carbon (C) – All living things contain carbon – A substance without carbon is called inorganic Elements to know: C = carbonN = nitrogen H = hydrogenP = phosphorus O = oxygen

Carbohydrate Structure:Functions: Monomer:Polymer: Circle or ring shaped Create a 1:2:1 ratio Elements: C, H, O Main source of immediate energy Good to know: Often known as simple (monomers) and complex (polymers) Monosaccharide Examples: glucose, sucrose Polysaccharide Examples: starch, cellulose

BELL WORK: We have learned that you get energy from the biomolecules in your food. But WHERE in the biomolecules does the energy actually come from? (check your notes from last Monday) Why do you think lipids have more energy than carbohydrates? (there’s no wrong answer yet – I want you to speculate!)

CO: I will understand and identify the structure and function of a lipid, and compare it to a carbohydrate. LO: I will write notes about lipids, and create a Venn Diagram to compare carbohydrates and lipids.

Lipids Structure: Functions: Monomer:Polymer: Chain shaped A backbone and 3 tails Elements: C, H, O Source for long term energy Primary component of the cell membrane Good to know: Saturated fats: contain single bonds Unsaturated fats: contain double bonds Lipids make the waxy coating on leaves **Lipids are HYDROPHOBIC!** Fatty acids Triglyceride (lipid)