Question

level 3 q1 what type of fatty acid has one or more double bonds in its molecular structure? a. unsaturated b. saturated c. cream d. butter level 3 q2 which of the following is a function of nucleic acids? a. speed up chemical reactions b. store and carry genetic information c. storage of energy d. performs the actual physical work within the body level 3 q3 which of the following is a function of carbohydrates? a. speed up chemical reactions b. perform nearly every function carried out by the body c. store and carry genetic information d. storage of energy level 3 q4 identify the following carbohydrate: a. monosaccharide b. disaccharide c. polysaccharide d. none of the above

Explanation:

• Q1: Unsaturated fatty acids have one or more double - bonds in their molecular structure. Saturated fatty acids have only single bonds. Cream and butter are products containing fatty acids, not types of fatty acids.
• Q2: Nucleic acids (DNA and RNA) store and carry genetic information. Enzymes speed up chemical reactions, fats and carbohydrates are for energy storage, and proteins perform physical work.
• Q3: Carbohydrates are mainly used for energy storage. Enzymes speed up reactions, proteins perform most body functions, and nucleic acids carry genetic information.
• Q4: The structure shown has multiple sugar units linked together, so it is a polysaccharide. Monosaccharides are single - sugar units, and disaccharides have two sugar units.

Answer:

Q1. A. Unsaturated
Q2. B. Store and carry genetic information
Q3. D. Storage of energy
Q4. C. Polysaccharide