Unit IV ChemCom Chemistry Food Unit Part B
1. Which of these is a micro-nutrient because you require tiny amounts?
a.carbohydrates b.fats c.minerals d.proteins
2. Which element is not found in carbohydrates?
a.carbon b.hydrogen c.nitrogen d.oxygen
3. The functional group -O-H called hydroxyl turns a hydrocarbon into a(n):
a.acid b.alcohol c.ether d.aldehyde
4. A triglyceride fat is formed when three fatty acids form ester linkages to
one molecule of: a.carboxylic acid b.propanone c.glycerol d.formaldehyde
5. Starch and cellulose are two examples of: a. monosaccharides
b. disaccharides c. polymers d. monomers
6. Unsaturated fats contain fatty acids which have: a.aldehyde groups
b.alcohol groups c. 4 Cal per gram d. double bonds
7. Write the balanced chemical equation for the overall process of photosynthesis; include the 686 kcal(solar energy)on the correct side.
8. If a peanut burns and heats 50 g water from 22 to 72 degrees Celsius,
how many (food) Calories did it have?
9. Draw the structural formula of glucose in the chain form.
10. Draw the structural formula of Palmitic acid, a 16-carbon saturated
fatty acid.
Questions? Comments??
Phil Boese