1. Valine, glycine, alanine, and cysteine are all: a) fatty acids b)
monosaccharides c) amino acids d) vitamins
2. Proteins are large polymer molecules with molar masses (molec. weights)of
about: a) 100-150g b) 500-700g c) 750-1000g d) 5,000 to several million
g.
3. How many tripeptides can be made from three different amino acids using
each one once? a) three b) six c) eight d) nine
4. Polypeptide chains are digested into amino acids by digestive enzymes
called: a) hydroxylases b) carboxylases c) proteases d)
dehydrogenases
5. Empty beaker weighs 40g. Beaker plus milk weighs 56g. Filter paper weighs
0.75g. Filter paper plus dry protein weighs 1.25g. Percentage protein in
milk is about: a) 1% b) 2% c) 3% d) 5%
6. A glass of whole milk with 8g fat, 8g protein and 11g carbohydrate has
about ___ Calories. a) 100 b) 125 c) 150 d) 175
7. The energy of one ounce of raisins heats 1000g of 22 degree water to 97
degrees. This is: a) 75 cal b) 75000 kcal c) 75 kcal d) 7.5 Cal
8. A mole of glucose burns to give 686 kcal. If 90g glucose and 90g oxygen
react, ___ kcal will evolve. a) 686 b) 343 c) 322 d) 302
9. Which is not a trace mineral for humans? a) Cu B) Iodine C) Se
D) Sulfur
10. The variable side chain in the amino acid cysteine is -CH2-SH.
Draw the structural formula of the amino acid cysteine.
Questions? Comments??
Philip Boese