H APPY T UESDAY B UFFS !! Bellwork: Open your journals to page 26 and complete the following questions from yesterday’s lab. Copy what is in bold and answer the questions: 1. When we added water, what process was occurring: dehydration synthesis or hydrolysis? Describe the glue after water was added. 2. When we added borax, what process was occurring: dehydration synthesis or hydrolysis? Describe the glue after borax was added. 3. Summarize what happened during the Gloop Lab in 30 words. You must use the words: polymer, monomer, dehydration synthesis

C ARD S ORT WITHOUT your journal, but WITH your partner match the term, definition, and picture. Raise your hand when you’re done.

Open your Journals to page 27 Set this page up for Cornell Notes Title this page “Carbohydrates”

N OTES : B IOMOLECULES 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

C ARBOHYDRATES …. 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 ( although there are some exceptions to this ) 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

F UNCTION, 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. *Marshmallow burn demo

M ONOMER AND P OLYMER … 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.

M ONOMER AND P OLYMER … Monomer: Polymer:

R EADING A SSIGNMENT Read the short article on page 172 of your textbook titled “Sweeter Than Sugar” Be prepared to tell me if artificial sweeteners are “healthy” or not.

F OLDABLE T IME !!!

T IME TO B UILD !!!! With a partner build the following Carbohydrate monomers using Marshmallows and toothpicks. Your teacher must approve your model. Green = Carbon Orange = Hydroge Pink = Oxygen Toothpicks = Bonds glucose

N OW ….. Use your resources to model the dehydration synthesis example below and form the polymer Sucrose.