Transcript Problem 2: Worst Food in America Can you decide?

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
Fatty acid
disaccharides
phosphate
cholesterol
Organic Macromolecules
Carbohydrates
simple sugar
monosaccharide
glucose
triglyceride
fructose
Simple sugar
Lipids
polysaccharide
disaccharide
cellulose
sucrose
glycerol 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
lactose
Fatty acid
glucose
starch
testosterone
steroid
cholesterol
Learning Objective 2: Functions
First fill in the following blanks with the functions:
• Carbohydrates: (Table 3.6 in text)
– simple sugars synthesized by photosynthesis _______
– Polysaccharides like starch __________
– Polysaccharides like cellulose _____________
• Lipids: (Section 3.4)
– Triglycerides like fats and oils: ________________
– Phospholipids: ____________________
– Steroids: _______________________
• Proteins: (Table 3.3 in text) ___________,
____________, ___________, ____________,
__________
Once you have filled in the blanks, work with your group to put
functions on the chart (can be added to comments 1 section).
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 (comments 2 section).