what is the meaning of the word overturn in the last paragraph of the passage

HESI A2

Reading Comprehension HESI A2 Practice Test

1. What is the meaning of the word overturn in the last paragraph of the passage?

A. Justify
B. Invalidate
C. Support
D. Review

Correct answer: B

Rationale: The word "overturn" means to invalidate or negate existing guidelines. In this context, the passage questions whether the findings of the study are substantial enough to change established medical recommendations regarding caffeine intake during pregnancy, making option B the appropriate choice.

2. What does the term inhibitors mean, as used in the second paragraph?

A. Protectors
B. Deterrents
C. Stressors
D. Transporters

Correct answer: B

Rationale: Inhibitors refer to substances that slow down or prevent a particular process, in this case, the buildup of uric acid.

3. What does the author suggest about the Earth's tilt in the passage on Daylight Savings Time?

A. The Earth's tilt has no effect on the seasons.
B. The Earth's tilt affects the amount of sunlight different areas receive.
C. The Earth's tilt is constant throughout the year.
D. The Earth's tilt changes dramatically during the seasons.

Correct answer: B

Rationale: The author suggests that the Earth's tilt affects the amount of sunlight different areas receive, influencing the seasons. The passage explains how the tilt of the Earth towards the sun results in different regions receiving varying amounts of sunlight, leading to the existence of seasons. This tilt causes regions near the equator to receive more sunlight consistently, while the Poles experience periods of constant darkness or sunlight, creating different seasons. Choices A, C, and D are incorrect because the passage clearly states that the Earth's tilt influences sunlight distribution and subsequently impacts the seasons.

4. What is the meaning of the word 'pathogens' as it is used in the first paragraph?

A. diseases
B. vaccines
C. disease-causing substances
D. foods

Correct answer: C

Rationale: In the context provided, 'pathogens' refers to disease-causing substances such as bacteria and viruses. These microorganisms can contaminate food and lead to foodborne illnesses. Choice A ('diseases') is incorrect as pathogens themselves cause diseases but are not diseases. Choice B ('vaccines') is incorrect as vaccines are used to prevent diseases caused by pathogens. Choice D ('foods') is incorrect as pathogens are not foods, but rather contaminants that can be found in food.

5. What is the meaning of the word 'elasticity' in the last paragraph?

A. Something that is able to resist and be flexible
B. Something that is like plastic
C. Something that is dynamic and electrifying
D. Something that is silly

Correct answer: A

Rationale: 'Elasticity' refers to the ability of the arterial walls to resist and be flexible, which affects blood pressure. In the provided extract, it is mentioned that an increase in blood pressure can occur if the arterial walls lose some of their elasticity with age or disease. This demonstrates that elasticity refers to the property of being able to resist and be flexible, supporting choice A as the correct answer. The other choices, B, C, and D, do not accurately reflect the concept of elasticity in the context of arterial walls and blood pressure.