Question

1. using the key choices, correctly select all terms that correspond to the following descriptions. insert the correct letter(s) or their corresponding term(s) in the answer blanks. items may have more than one answer.

key choices
a. cholesterol d. enzyme g. hormones j. maltose
b. collagen e. glycogen h. keratin k. rna
c. dna f. hemoglobin i. lactose l. starch

1. example(s) of fibrous (structural) proteins
2. example(s) of globular (functional) proteins
3. biological catalyst
4. plant storage carbohydrate
5. animal storage carbohydrate
6. the material of the genes
7. a steroid
8. double sugars, or disaccharides
9. five simplified diagrams of biological molecules are represented in figure 2 - 4.

(a) identify the molecules and insert the correct names in the answer blanks on the figure.
(b) select a different color for each molecule listed below and use them to color the coding circles and the corresponding molecules on the illustration.
fat nucleotide monosaccharide
globular protein polysaccharide

Explanation:

1. Collagen and keratin are fibrous proteins. Hemoglobin is a globular protein. Enzyme is a biological catalyst. Starch is plant storage carb, glycogen animal one. DNA is gene - material. Cholesterol is a steroid. Maltose and lactose are disaccharides. For 20, identify by structure.

Answer:

1. B, H
2. C
3. D
4. L
5. E
6. C
7. A
8. I, J

20(A): A - Monosaccharide, B - Globular protein, C - Nucleotide, D - Fat, E - Polysaccharide