Answer to Question 1
D
The body can synthesize some choline from methionine, but not enough to meet the needs of the body. The body cannot synthesize choline from glycerol, cholesterol, and tryptophan.
Answer to Question 2
4 Rationale: Ingesting foods that are contaminated with methymercury can result in these types of neurological problems. When mercury is dumped into water sources, it turns into methylmercury and sinks to the bottom. Plants and small animals that dwell at the bottom of the water source will become contaminated. Fish eat these plants and small animals. Humans eat the contaminated fish and can develop neurological problems, kidney damage, brain damage, and possibly cancer. Raw vegetables, unpasteurized milk, and improperly cooked poultry are not likely sources of methylmercury.