Bellwork: Glue handout to correct page in your I.A.N. Open your I.A.N. to PAGE 20, glue down “Carbohydrates”. Open your I.A.N. to PAGE 21, glue down “Lipids”. Open your I.A.N. to PAGE 22, glue down “Proteins”. HAPPY THURSDAY

REMINDERS I.A.N. Check TOMORROW. Notecards DUE TOMORROW. Buff Binder Check on Wednesday Next week is the last week of the 1 st -Six Weeks.

Essential Question: What are the differences between a carbohydrate and a lipid?

Notes: Biomolecules Biomolecules are the molecules found in all living things. Biomolecules are organic compounds. – Organic compounds 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

Carbohydrates….here we go! Structure discovery: For the next few minute discuss the following questions at your table: How would you describe the structure of this biomolecule? Does it’s shape resemble any familiar form? What elements are present? What pattern or relationship exists among the elements?

Structure: You may have discovered that… Carbohydrates are typically ring shaped. Carbohydrates contain the elements Carbon, Hydrogen, and Oxygen? Carbohydrates have a 1:2:1 ratio, or relationship, amongst the elements. For every 1 Carbon atom, there are 2 Hydrogen atoms and 1 Oxygen atom (1:2:1)

Carbohydrate Structure:Functions: Monomer:Polymer: RING or CIRCLE shaped Create a 1:2:1 ratio Elements: C (Carbon), H (Hydrogen), O (Oxygen) Main source of ____________ energy Good to know: Often known as simple (monomers) and complex (polymers) _____________ Examples: glucose, sucrose ___________________ Examples: starch, cellulose

Function, what do they do?: Carbohydrates are used as the body’s main source for QUICK and IMMEDIATE energy. CAR-bohydrate They can be simple (monomer) or complex (polymer) Food sources include sugar, honey and fruits in simple forms Complex forms include grains, starches, pastas and breads.

Carbohydrate Structure:Functions: Monomer:Polymer: RING or CIRCLE shaped Create a 1:2:1 ratio Elements: C (Carbon), H (Hydrogen), O (Oxygen) Main source of QUICK or IMMEDIATE energy *remember the marshmallow* Examples? Good to know: Often known as simple (monomers) and complex (polymers) _____________ Examples: glucose, sucrose ___________________ Examples: starch, cellulose

Monomer and Polymer… Carbohydrates are composed of monomers called Monosaccharides Some common examples of monosaccharides include Glucose, Fructose, Galactose Monosaccharides bond to form more complex polymers known as Polysaccharides Some common examples of Polysaccharides include Cellulose and Starch.

Carbohydrate Structure:Functions: Monomer:Polymer: RING or CIRCLE shaped Create a 1:2:1 ratio Elements: C (Carbon), H (Hydrogen), O (Oxygen) Main source of QUICK or IMMEDIATE energy *remember the marshmallow* Examples? Good to know: Often known as simple (monomers) and complex (polymers) Monosaccharide Examples: glucose, sucrose Polysaccharide Examples: starch, cellulose

Monomer and Polymer… Monomer: Polymer:

Lipids….here we go! Structure discovery: For the next few minute discuss the following questions at your table: How would you describe the structure of this biomolecule? Does it’s shape resemble any familiar form? What elements are present? How do you KNOW for sure that it is not a carbohydrate?

Structure: You may have discovered that… Lipids are typically chain shaped Lipids contain the elements Carbon, Hydrogen, and Oxygen? Even though Lipids have the same elements as Carbohydrates, they do NOT have a 1:2:1 ratio.

Lipids Structure: Functions: Monomer:Polymer: CHAIN shaped A backbone and 3 tails Elements: C (Carbon), H (Hydrogen), O (Oxygen) Source for _________ energy Primary component of the ____________________ waxy coating on the top of leaves (cuticle). Good to know: Saturated fats: contain single bonds Unsaturated fats: contain double bonds ______________ ______________ (lipid)

Function, what do they do?: Lipids are used by the body as a source for LOOOOOOOOOOOOOONG term energy Lipids are the primary component of the cell membrane. (Lipid bi-layer) Lipids make up the waxy cuticle layer on leaves, vegetables and fruits. Lipids are Hydrophobic (water fearing) meaning they repel water. Oil and water don’t mix.

Lipids Structure: Functions: Monomer:Polymer: CHAIN shaped A backbone and 3 tails Elements: C (Carbon), H (Hydrogen), O (Oxygen) Source for LONG-TERM or SLOW energy Primary component of the CELL MEMBRANE waxy coating on the top of leaves (cuticle). Good to know: Saturated fats: contain single bonds Unsaturated fats: contain double bonds ______________ ______________ (lipid)

Monomer and Polymer… Lipids are composed of monomers called Fatty Acids Fatty acids bond with a Glycerol backbone form more complex polymers known as Triglycerides. A Glycerol backbone with three fatty acid chains

Lipids Structure: Functions: Monomer:Polymer: CHAIN shaped A backbone and 3 tails Elements: C (Carbon), H (Hydrogen), O (Oxygen) Source for LONG-TERM or SLOW energy Primary component of the CELL MEMBRANE waxy coating on the top of leaves (cuticle). Good to know: Saturated fats: contain single bonds Unsaturated fats: contain double bonds Fatty Acids Triglyceride (lipid)