Exam 21: Nutrition and Digestion

In the digestive system, most nutrient absorption occurs in the

-A person who is 5' 7" and weighs 170 pounds would be considered

The main function of an earthworm's gizzard is to

What happens to nutrient macromolecules in an animal's digestive tract?

Organisms suffering from malnutrition may have a diet deficient in

If a person on a fad diet experiences muscle cramps, a physician would suspect that this individual is likely suffering from a deficiency of

When browsing the Internet you will often come across "miracle weight-loss" products that guarantee that you will lose weight if you use them. Which of the following would be the best controlled experiment to test this assertion?

Which of the following correctly lists the order of the parts of the human digestive system, from first to last contact with food matter?

Which enzyme breaks large polypeptides into smaller polypeptides?

H. pylori is a bacterium that causes stomach ulcers. What can you conclude from the data shown below which indicates bacteria found in the stomach of people with and without an H. pylori infection?

Fred explained to his family how the doctor's advice would help prevent cardiovascular disease, but he made a mistake in his explanation. Which of the following statements is false?

The function of the sphincter between the stomach and small intestine is to

Reabsorption of water is a major function of the

The tongue does all of the following except

Human saliva performs all of the following functions except

The minimal amount of nutrients needed every day by healthy people to prevent nutrient deficiencies is called the

Lions are not always successful hunters and may go days between meals. What evolutionary adaptation helps the lion survive periods of famine?

Most gastric ulcers are caused by

Since the fall of 2012, public schools have had to meet new nutrition standards (which included offering more fruits and vegetables) for their lunches. In 2013, the USDA (United States Department of Agriculture) reviewed data from the 2005 School Nutrition and Dietary Assessment to investigate whether students in schools that were already following the new standards (school group A) ate more fruits and vegetables than students in schools that were not following the new standards (school group B). You will be presented with some of the overall findings of the review and will then be asked questions related to these conclusions. -Finding #3: Of all of the schools surveyed in 2005, 75% offered lunches that met new weekly standards for amounts of dark, green leafy vegetables. 85% offered lunches that met new weekly standards for amounts for red/orange vegetables. 21% offered lunches that met new weekly standards for legumes (such as beans). 97% offered lunches that met new weekly standards for amounts for "other" vegetables. This suggests that

Most herbivorous animals do not have the ability to digest the cellulose in plants. What mechanism has evolved in the absence of this ability that allows them to survive despite eating only plant matter?