which type of fiber is insoluble and promotes gut motility
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ATI TEAS 7

ATI TEAS 7 science review

1. Which type of fiber is insoluble and promotes gut motility?

Correct answer: B

Rationale: A) Pectin is a soluble fiber found in fruits and vegetables. It forms a gel-like substance in the gut and can help lower cholesterol levels. B) Cellulose is an insoluble fiber found in plants, particularly in the cell walls of fruits, vegetables, and whole grains. It adds bulk to the stool and promotes gut motility by aiding in the movement of food through the digestive system. C) Beta-glucan is a soluble fiber found in oats and barley. It can help lower cholesterol levels and improve blood sugar control. D) Guar gum is a soluble fiber derived from guar beans. It can help with digestion and may have a role in managing blood sugar levels. In this case, the question specifically asks for the type of fiber that is insoluble and promotes gut motility, which is characteristic of cellulose.

2. Bob decides to go into business selling lemonade. He buys a wooden stand for $45 and sets it up outside his house. He figures that the cost of lemons, sugar, and paper cups for each glass of lemonade sold will be 10¢. Which of these expressions describes his cost for making g glasses of lemonade?

Correct answer: A

Rationale: The cost for making g glasses of lemonade includes the initial cost of the stand ($45) plus 10¢ for each glass of lemonade sold. Therefore, the expression that represents the cost for making g glasses of lemonade is $45 + $0.1 × g, which matches option A. Choice B, $44.90 × g, is incorrect as it does not account for the initial stand cost of $45. Choice C, $44.90 × g + 10¢, is incorrect because it does not include the initial stand cost and incorrectly adds an extra 10¢ for every glass. Choice D, $90, is incorrect as it does not consider the variable cost of 10¢ per glass and only represents the initial stand cost.

3. In which of the following situations is a citation needed?

Correct answer: C

Rationale: The correct answer is C. A citation is necessary when using someone else's work, such as song lyrics, to support an argument in academic writing. In options A, B, and D, there is no need for a citation. Option A involves the professor teaching her own work, so no external citation is required. Option B refers to an original work by the speaker, which does not require citation. Option D mentions a well-known and accepted fact, which generally does not need a citation in academic writing.

4. Certain medications can suppress the immune system to treat autoimmune diseases or prevent organ rejection after transplants. What is a potential risk associated with immunosuppressive drugs?

Correct answer: B

Rationale: Immunosuppressive drugs work by suppressing the immune system's activity, which can increase the risk of infections as the body's ability to fight off pathogens is compromised. While allergies can be a side effect of some medications, the primary concern with immunosuppressive drugs is the increased susceptibility to infections. Therefore, the correct answer is B, increased susceptibility to infections. Choice A, 'Increased risk of developing allergies,' is incorrect as the primary risk associated with immunosuppressive drugs is not related to allergies. Choice C, 'Both A and B,' is incorrect as the main concern is the increased susceptibility to infections rather than developing allergies. Choice D, 'Neither A nor B,' is incorrect as there is a known risk of increased susceptibility to infections when using immunosuppressive drugs.

5. From the extract, what is the author's point of view?

Correct answer: C

Rationale: The correct answer is C, third person omniscient. The author provides insight into the thoughts of multiple characters, such as Michael and Lana June, indicating knowledge beyond what a single character could perceive. This omniscient viewpoint allows readers to understand the perspectives of different individuals, enhancing the depth and complexity of the narrative. Choices A, B, and D are incorrect because the extract demonstrates a narrative style that extends beyond a single character's viewpoint, revealing thoughts and feelings of various characters.

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