Which food would provide the most roughage for the body?

A. baked fresh fish

B. lettuce-and-tomato salad

C. fried chicken breast

D. milkshake

Answer Explanation:

B) lettuce-and-tomato salad

- Correct: Lettuce-and-tomato salad would provide the most roughage for the body. Roughage, also known as dietary fiber or bulk, refers to the indigestible portion of plant foods that adds bulk to the stool and helps regulate bowel movements. Lettuce and tomatoes are both rich sources of dietary fiber. Lettuce, especially varieties like romaine or leaf lettuce, contains cellulose and other insoluble fibers, while tomatoes contain soluble fibers like pectin. Consuming a salad made of lettuce and tomatoes would provide a significant amount of roughage to the body, promoting digestive health and regular bowel movements.

A) baked fresh fish

- Incorrect: Fish does not contain significant amounts of dietary fiber. While fish is a valuable source of protein and other nutrients, it is not a source of roughage.

C) fried chicken breast

- Incorrect: Fried chicken breast does not contain significant amounts of dietary fiber. Additionally, frying can add unhealthy fats and calories to the chicken breast, further reducing its nutritional value in terms of roughage.

D) milkshake

- Incorrect: Milkshakes are typically made with milk, ice cream, and flavorings, none of which provide dietary fiber. In fact, milkshakes are generally low in fiber and may contain high amounts of sugar and fat, making them poor choices for increasing roughage intake.

Therefore, the Correct Answer is B.

Q #1: The absorptive surface of the small intestine is greater than that of other human digestive organs because of its length and the presence of

A. alveoli

B. neurons

C. villi

D. nephrons

Answer Explanation

C) villi

- Correct: The absorptive surface of the small intestine is greatly increased due to the presence of villi. Villi are finger-like projections that line the inner surface of the small intestine. These structures greatly increase the surface area available for absorption. Each villus contains capillaries and lacteals (lymphatic vessels) that absorb nutrients from digested food. The large surface area provided by the villi allows for more efficient absorption of nutrients such as carbohydrates, proteins, fats, vitamins, and minerals.

A) alveoli

- Incorrect: Alveoli are tiny air sacs in the lungs where gas exchange occurs during respiration. They are not found in the digestive system and do not contribute to the absorptive surface of the small intestine.

B) neurons

- Incorrect: Neurons are nerve cells that transmit signals throughout the body, including the digestive system. While neurons play a role in regulating digestion and other digestive processes, they do not directly contribute to the absorptive surface of the small intestine.

D) nephrons

- Incorrect: Nephrons are the functional units of the kidneys responsible for filtering blood and producing urine. They are not part of the digestive system and do not contribute to the absorptive surface of the small intestine.
Q #2: A branch of the nerve regulating the secretions of the stomach can be cut surgically. The decrease in hydrochloric acid secretion that would result from this procedure would be most helpful to an individual with

A. diarrhea

B. appendicitis

C. gallstones

D. ulcers

Answer Explanation

D) ulcers

- Correct: The decrease in hydrochloric acid secretion resulting from the surgical cutting of a branch of the nerve regulating stomach secretions would be most helpful to an individual with ulcers. Ulcers are sores or lesions that develop in the lining of the stomach, small intestine, or esophagus due to factors such as infection with Helicobacter pylori bacteria, prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs), or excessive alcohol consumption. Hydrochloric acid plays a significant role in the formation and exacerbation of ulcers by increasing the acidity of the stomach, which can irritate and erode the lining of the gastrointestinal tract. Therefore, reducing hydrochloric acid secretion can help alleviate the symptoms and promote healing of ulcers.

A) diarrhea

- Incorrect: Decreasing hydrochloric acid secretion would not directly address the underlying causes of diarrhea, which may be related to infections, dietary issues, or other factors affecting gastrointestinal motility and water absorption.

B) appendicitis

- Incorrect: Appendicitis is inflammation of the appendix, a small pouch located near the junction of the small and large intestines. Decreasing hydrochloric acid secretion would not directly affect the development or treatment of appendicitis.

C) gallstones

- Incorrect: Gallstones are hardened deposits that form in the gallbladder and can obstruct the flow of bile. Decreasing hydrochloric acid secretion would not directly address the formation or treatment of gallstones, as they are primarily composed of cholesterol or bilirubin, not affected by changes in stomach acid levels.
Q #3: Hardened deposits of cholesterol that accumulate in the structure that stores bile are known as

A. gallstones

B. ulcers

C. goiters

D. allergies

Answer Explanation

A) gallstones

- Correct: Hardened deposits of cholesterol that accumulate in the structure that stores bile, which is the gallbladder, are known as gallstones. Gallstones can also contain other substances, such as bilirubin or calcium salts, in addition to cholesterol. These stones can vary in size and may cause symptoms such as abdominal pain, nausea, and jaundice. In severe cases, gallstones may require medical intervention, including surgery, to remove them.

B) ulcers

- Incorrect: Ulcers are sores or lesions that develop in the lining of the digestive tract, commonly in the stomach (gastric ulcers) or the upper part of the small intestine (duodenal ulcers). They are not related to hardened deposits of cholesterol in the gallbladder.

C) goiters

- Incorrect: Goiters are abnormal enlargements of the thyroid gland in the neck. They can be caused by iodine deficiency, thyroid disorders, or other factors, but they are not related to gallstones.

D) allergies

- Incorrect: Allergies are immune responses to specific substances (allergens) that the body perceives as harmful, leading to symptoms such as sneezing, itching, or anaphylaxis. They are not related to hardened deposits of cholesterol in the gallbladder.

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Which food would provide the most roughage for the body?

More Questions on TEAS 7 Science

Q #1: The absorptive surface of the small intestine is greater than that of other human digestive organs because of its length and the presence of

Answer Explanation

Q #2: A branch of the nerve regulating the secretions of the stomach can be cut surgically. The decrease in hydrochloric acid secretion that would result from this procedure would be most helpful to an individual with

Answer Explanation

Q #3: Hardened deposits of cholesterol that accumulate in the structure that stores bile are known as

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