(Question)
Answer the following question given this paragraph:   Because carbohydrates have a carbonyl functional group and several hydroxyl groups, they can undergo a variety of biochemically important reactions. The carbonyl group, for example, can be oxidized to form a carboxylic acid or reduced to form an alcohol. The hydroxyl groups can undergo substitution reactions, resulting in derivatives of the original compound. One such derivative is Sucralose, an artificial sweetener that is six times sweeter than sucrose; it is made by replacing two of the hydroxyl groups on sucrose with chlorine. Carbohydrates can also eliminate hydroxyl groups, producing alkenes.   Q: Because carbohydrates have a carbonyl functional group and several hydroxyl groups, they can undergo a variety of biochemically important reactions. the carbonyl group, for example, can be oxidized to form a carboxylic acid or reduced to form this?   Choices:  - glucose  - sucrose  - caffeine  - alcohol  A:
(Answer)
alcohol


(Question)
Answer the following question given this paragraph:   It is hard to overstate the importance of hydrocarbons to modern life. Hydrocarbons have even been called the driving force of western civilization. You saw some ways they are used in Figure above . Several other ways are illustrated in Figure below . Their most important use is as fuels. Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are just some of the hydrocarbon compounds that are burned for fuel. Hydrocarbons are also used to manufacture many products, including plastics and synthetic fabrics such as polyester.   Q: What compounds, which serve as fuels and are used in manufacturing, are called the driving force of western civilization?   Choices:  - forests  - fossils  - gas  - hydrocarbons  A:
(Answer)
hydrocarbons


(Question)
Answer the following question given this paragraph:   Amphibians are the first true tetrapods, or vertebrates with four limbs.   Q: Which vertebrates were the first with four limbs?   Choices:  - bony fishes  - birds  - reptiles  - amphibians (or tetrapods)  A:
(Answer)
