Exam 41: Animal Nutrition

Use the following information to answer the following questions. Mouse mutations can affect an animal's appetite and eating habits. The ob gene produces a satiety factor (the hormone leptin). The db gene product is required to respond to the satiety factor (the leptin receptor). -Obesity in humans is most likely to contribute to which of the following?

To leave the digestive tract, a substance must cross a cell membrane. During which stage of food processing does this take place?

The pH of the gastric juice of the stomach is about 2 due to the formation of HCl. Where does this formation of HCl occur?

Use the following table of the contents of a multivitamin supplement and its % of recommended daily values (DV) to answer the following questions. Dietary Supplement % DV Dietary Supplement \% DV Vitamin A 70 Vitamin C 100 Vitamin D 100 Vitamin E 150 Vitamin K 13 Vitamin B1 100 Vitamin B2 100 Folic acid 100 Vitamin B12 417 Calcium 20 Phosphorus 5 Iodine 100 Magnesium 25 Zinc 100 Copper 100 Chromium 125 Molybdenum 100 Iron 0 Etc. -Folic acid supplements have become especially important for pregnant women. Why?

Which of the following vitamins is correctly associated with its use?

The following questions refer to the digestive system structures in Figure 41.1. Figure 41.1 -Which of the following would probably contribute to constipation? A substance that

Use the following information to answer the following questions. Mouse mutations can affect an animal's appetite and eating habits. The ob gene produces a satiety factor (the hormone leptin). The db gene product is required to respond to the satiety factor (the leptin receptor). -Most obese humans produce normal or increased levels of leptin without satiety. Which might provide an answer to at least some human obesity if a means to do so is found?

In which of the following would you expect to find an enlarged cecum?