Transcript Problem 2: Worst Food in America Can you

Worst Food in America
Can you decide?
Worst Individual
Snack
520 calories
45 g sugars
24 g fat (14 g saturated, 1.5 g trans)
Skip past the enriched flour and water on the ingredient list and
here's what you get:
– animal shortening, corn syrup, high-fructose corn syrup, sugar, modified
corn starch, butter, chocolate liqueur, and so on.
– Any one of these ingredients alone might prompt you to raise an
eyebrow, but taken together they should invoke a gag reflex and a sprint
for something far healthier.
– Saturated Fat Equivalent: 2 McDonald's Quarter Pounders
Organic Macromolecules
Carbohydrates
Lipids
Proteins
Nucleic Acids
Food Contains These Three
Learning Objectives for Class:
1.
2.
3.
Differentiate between carbohydrates, lipids (fats), and
proteins, by what molecules they contain.
Give examples of the function of each type.
Use knowledge of function to deduce foods that contain
these macromolecules based on description of a food.
(Enriched flour comes from wheat. Wheat is a seed and
contains long term stored Carbs for energy and structure,
so it contains starch.
Learning Objective 1: Organization Chart
Organic Macromolecules
Carbohydrates
Lipids
Protein
Your group will be organizing these items from the
macromolecules assessment into Carbs, Lipids & Proteins
fatty acid sucrose
glycogen
amino acid lactose
testosterone cellulose monosaccharide
triglyceride
glycerol
polysaccharide
fructose
phospholipid
Simple sugar
starch
glucose
steroid
disaccharides
phosphate
cholesterol
Organic Macromolecules
Carbohydrates
simple sugar
monosaccharide
glucose
triglyceride
fructose
Lipids
polysaccharide
disaccharide
cellulose
glycerol
sucrose
amino acid
phospholipid
phosphate
Protein
Organize the rest of the
items onto this chart
(double-click) or draft a
paper version. Every
group makes one
glycogen
fatty acid fatty acid
starch
steroid
lactose
testosterone
cholesterol
Organic Macromolecules
Carbohydrates
simple sugar
monosaccharide
glucose
glycerol
triglyceride
Protein
polysaccharide
disaccharide
fructose
Lipids
glycogen
sucrose
starch
cellulose
lactose
phospholipid amino acid fatty acid testosterone
phosphate
steroid
cholesterol fatty acid
Learning Objective 2: Functions
First fill in the following blanks with the functions:
• Carbohydrates: (See board for word bank)
– Simple sugars synthesized by photosynthesis ______
– Polysaccharides like starch __________
– Polysaccharides like cellulose _____________
• Lipids:
– Triglycerides like fats and oils: ________________
– Phospholipids: ____________________
– Steroids: _______________________
• Proteins: ___________, ____________, ___________,
___________, ____________, _____________
Once you have filled in the blanks, work with your group to put
functions on the chart
Learning Objective 3: Food ID
Fill in the blanks with examples of foods:
• Carbohydrates:
– simple sugars synthesized by photosynthesis ______________
– Polysaccharides like starch _______________
– Polysaccharides like cellulose __________________
• Lipids:
– Triglycerides like fats and oils: ________________
– Phospholipids: ____________________
– Steroids: _______________________
• Proteins: ___________, ____________, ___________,
____________, __________
Once you have filled in the blanks, work with your group
to put foods on the chart