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Unit 4 Cooperative Homework Assignment #1

 

UNIT 2 COOPERATIVE HOMEWORK ASSIGNMENT #2ANSWER KEY

1. Match the molecules below with the

letter (A-D)

representing the group of organiccompounds to which they belong. Answers can be used

more than once

.[a] 1. hemoglobin a. protein[c] 2. estrogen and testosterone b. nucleic acid[d] 3. cellulose c. lipid[a] 4. insulin d. carbohydrate[b] 5. ATP[a] 6. antibody

7. If you eat one serving of this food, what percent of your daily calciumrequirement would be met?

20%

8. If you ate the entire package, you wouldhave consumed

500

kcal.9.

Two

servings of this food contain

3

gramsof trans fat.10. How many

calories

from carbohydratesare in one serving of this food?

124kcal

Nutrition Facts

Serving Size 1 cup (228 g)Servings Per Container 2

Amount Per Serving

Calories

250

Calories from Fat

110% Daily Value

Total Fat

12 g 18%Saturated Fat 3 g 15%

Trans fat 1.5 g

Cholesterol

30 mg 10%

Sodium

470 mg 20%

Total Carbohydrate

31 g 10%Dietary Fiber 0 gSugars 5 g

Protein

5 gVitamin A 4% Vitamin C 2%Calcium 20% Iron 4%

 

UNIT 2 COOPERATIVE HOMEWORK ASSIGNMENT #1ANSWER KEY

1.

Potassium has the atomic number 19. How many electrons does a potassium atom need todonate to another atom to satisfy the octet rule?

a. 1

 b. 2

c. 3

d. 4

e. 5

2.

Which of the following is the main ingredient of roughage (fiber) in our diets?

a. glycogen

b. cellulose

c. lipids

d. amino acidse. nucleic acids3.

Which of the following statements is true about a bond formed between two carbon atoms?

a.

it involves the sharing of protons

 b.

it involves the sharing of electrons

c.

it's an ionic bond

d.

it's a covalent bond

e.

both b and d above are correct

4.

Radioactive isotopes:

a.

are stable

 b.

can't become part of organic molecules

c.

can be used to date remains of plants and animals

d.

can't occur in nature

e.

 both a and c above are correct

5.

Which of the following lists contains only polysaccharides?

a.

sucrose, starch, cellulose

 b.

starch, sodium, chlorine

c.

cellulose, water, glycogen

d.

glycogen, cellulose, starch

e.

glucose, fructose, lactose

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