HESI A2
Reading Comprehension HESI A2 Practice Test
1. Choose the best summary of the passage about microbes.
- A. Scientists have discovered the importance of certain bacteria for a well-functioning immune system, especially in defending against pathogens. The colonization of microbes in the body begins at birth, with the immune system relying on these bacteria for proper function.
- B. The passage discusses the role of bacteria in the development of the human immune system. It highlights that the body supports various microorganisms crucial for immunity, starting from birth. The presence of harmless bacteria is essential for the immune system to work effectively.
- C. The body hosts a vast number of microorganisms critical for immune system development. Harmless bacteria are necessary for the immune system to defend against pathogens effectively. Early research shows promising results in fecal bacteriotherapy for restoring the immune system's ability to fight off harmful invaders.
- D. Microbes play a pivotal role in human health, particularly in immune system development. The introduction of healthy bacteria is essential for the immune system to function correctly. Fecal bacteriotherapy is a novel approach to reintroducing beneficial bacteria into a compromised colon to enhance immune response.
Correct answer: C
Rationale: The correct answer is C. The passage emphasizes the importance of certain bacteria for a properly functioning immune system. It discusses how harmless bacteria play a crucial role in defending the body against pathogens. Choice A is incorrect as it focuses on the immune system's response to certain types of bacteria in lower organisms, not the overall importance of bacteria for immunity. Choice B is incorrect as it mainly discusses bacteriotherapy in relation to the reconstruction of a damaged colon, rather than the broader role of bacteria in immune system health. Choice D is incorrect as it only talks about the process of replacing harmful bacteria with harmless ones, missing the key point about the necessity of certain bacteria for immune system function.
2. What was the author’s primary purpose for writing this essay?
- A. To persuade the reader to conserve water
- B. To persuade the reader that runoff is not the best way to collect water
- C. To analyze different types of runoff
- D. To inform the reader about the stages of the water cycle
Correct answer: D
Rationale: The correct answer is D. The author's primary purpose for writing the essay is to inform the reader about the stages of the water cycle. The essay discusses the various stages of the water cycle, including precipitation, runoff, evaporation, and condensation. Choices A, B, and C are incorrect because the essay focuses on explaining the water cycle stages rather than persuading the reader to conserve water, discussing the effectiveness of runoff, or analyzing different types of runoff.
3. What does sleep apnea cause?
- A. Chronic illness.
- B. Good sleep.
- C. Improved memory.
- D. Reduced physical illness.
Correct answer: A
Rationale: Sleep apnea causes chronic illness. The passage specifically mentions that sleep apnea can result in chronic insomnia, indicating it can cause long-term health problems. Choices B, C, and D are incorrect as sleep apnea does not lead to good sleep, improved memory, or reduced physical illness.
4. What is the meaning of the word unprocessed as used in the first paragraph about Super Foods?
- A. Natural and untreated
- B. Made of vegetable matter
- C. Home grown
- D. Uncirculated or undigested
Correct answer: A
Rationale: In this context, "unprocessed" refers to foods that are in their natural state and have not been altered or treated in any way. This aligns with the idea of whole foods being free from additives and preservatives, making A the most accurate choice.
5. What conclusion can a reader draw from this passage?
- A. It is advisable to choose unsaturated fats over saturated fats.
- B. Saturated fats are more calorically dense than unsaturated fats.
- C. Trans fats are more calorically dense than saturated fats.
- D. Unsaturated fats are mostly found in animal products.
Correct answer: A
Rationale: The correct conclusion that can be drawn from the passage is that it is advisable to choose unsaturated fats over saturated fats. The passage emphasizes the health benefits of unsaturated fats, such as lowering cholesterol levels and reducing the risk of heart disease. It also mentions that saturated fats, although not as healthy as unsaturated fats, should still be consumed sparingly. Trans fats are highlighted as the least healthy fats, increasing the risk of heart disease. Choice B is incorrect because the passage does not explicitly compare the caloric density of saturated and unsaturated fats. Choice C is incorrect as the passage does not discuss the caloric density of trans fats in comparison to saturated fats. Choice D is incorrect as the passage states that unsaturated fats are found in sources like olive oil, walnut oil, and avocado oil, not mostly in animal products.
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