what is the main idea of the passage about microbes

HESI A2

Reading Comprehension HESI A2 Practice Test

1. What is the main idea of the passage about microbes?

A. Recent discoveries are revealing the critical role of microorganisms in maintaining a properly functioning immune system.
B. The human body is host to a staggering number of microorganisms.
C. Bacteriotherapy reintroduces healthy bacteria into a colon lacking the capability to defend against pathogenic agents.
D. Early research has shown remarkable discoveries in the possibilities of bacteriotherapy.

Correct answer: A

Rationale: The main idea of the passage is that recent discoveries are shedding light on the pivotal role of microorganisms in maintaining a properly functioning immune system. The passage discusses how the human body hosts a wide array of microorganisms, emphasizes the importance of these bacteria in the development of the immune system, and explores the potential applications of bacteriotherapy. Choice A is the correct answer because it accurately reflects the central theme discussed in the passage. Choices B, C, and D are incorrect because they focus on specific details or applications mentioned in the passage, rather than capturing the overarching theme of the critical role of microorganisms in immune system function.

2. What conclusion is suggested by this study from Germany?

A. So far, acupuncture does not have much credibility as a treatment option.
B. Acupuncture can relieve women of all menstrual discomfort.
C. NSAIDs are generally more effective than acupuncture for treating cramps.
D. Acupuncture is a reasonable treatment choice for cramps.

Correct answer: D

Rationale: The study indicates that acupuncture is a reasonable treatment option for menstrual cramps, supported by the positive outcomes reported by participants in the study. The wording in option D directly aligns with the conclusion drawn from the findings, making it the correct answer.

3. What was the author's motive for writing the paragraph?

A. Encourage overeating.
B. Criticize healthy eating habits.
C. Urge self-control.
D. Promote exercise.

Correct answer: C

Rationale: The author's motive for writing the paragraph is to urge self-control. The text emphasizes the importance of moderation in food and drink consumption to avoid serious physical and mental health problems. It highlights the negative consequences of overeating and alcohol abuse, pointing out the strain on the heart, diabetes risk, shortened lifespan, and emotional eating habits. By discussing the issues related to overconsumption, the author aims to promote self-control and responsible habits. Choices A, B, and D are incorrect because the paragraph focuses on advocating moderation and self-discipline rather than encouraging overeating, criticizing healthy eating habits, or promoting exercise.

4. All of the following are mentioned in the passage as potential risks from inadequate sleep EXCEPT ___________.

A. Cancer
B. Obesity
C. Diabetes
D. Depression

Correct answer: A

Rationale: Cancer is not mentioned as a risk associated with inadequate sleep in the passage.

5. What is the meaning of the word moderation as used in the second paragraph?

A. Adequate amounts
B. Intervals of time
C. Excess
D. Variation

Correct answer: A

Rationale: In this context, moderation means consuming adequate amounts of unsaturated fats. The passage highlights that unsaturated fats like olive oil and omega-3 fatty acids are beneficial when consumed in appropriate quantities. Choice B, intervals of time, is incorrect as it does not relate to the consumption of fats. Choice C, excess, is incorrect because moderation implies avoiding excess consumption. Choice D, variation, is unrelated to the context of consuming fats in appropriate amounts.