Question

level 5 q1 which of the following is not a type of carbohydrate? a. sugars b. peptides c. fibers d. starches level 5 q2 what is the ratio of carbon to hydrogen to oxygen in monosaccharides? a. 1:2:1 b. 2:1:2 c. 6:6:12 d. 1:2.4 level 5 q3 olive oil, a liquid at room temperature, is an example of which type of fatty acid? a. phospholipid b. saturated c. unsaturated d. wax level 5 q4 which of the following is a function of proteins? a. repairs body tissues b. speed up chemical reactions c. prevent infections and illness d. all of the above

Explanation:

• Q1: Carbohydrates include sugars, fibers, and starches. Peptides are related to proteins, not carbohydrates.
• Q2: Monosaccharides have a general formula of (CH₂O)ₙ, so the ratio of carbon to hydrogen to oxygen is 1:2:1.
• Q3: Olive - oil is a liquid at room temperature, which indicates it is an unsaturated fatty acid. Saturated fatty acids are usually solid at room temperature, phospholipids are a different class of lipids, and wax is also a different type of lipid.
• Q4: Proteins can repair body tissues (e.g., muscle repair), some proteins (enzymes) speed up chemical reactions, and antibodies (a type of protein) prevent infections and illness.

Answer:

• Q1: B. Peptides
• Q2: A. 1:2:1
• Q3: C. Unsaturated
• Q4: D. All of the above