what is the best definition of efficient as used in the third paragraph

HESI A2

HESI A2 Reading Comprehension Practice Test

1. What is the best definition of 'efficient' as used in the third paragraph?

A. Slow but steady.
B. Productive without waste.
C. Wasteful and careless.
D. Quick but sloppy.

Correct answer: B

Rationale: The correct definition of 'efficient' in the third paragraph is 'Productive without waste.' In the extract provided, it discusses how different cultures developed tools like cutlery and chopsticks to efficiently eat food. Efficiency here refers to getting something done with the least amount of waste. Choices A, C, and D are incorrect because they do not accurately capture the concept of efficiency discussed in the passage.

2. What is a major difference in the way baroreceptors and chemoreceptors work from the way the kidneys work?

A. Baroreceptors and chemoreceptors send impulses from the arteries, while the kidneys control blood volume.
B. Baroreceptors and chemoreceptors both work to help maintain blood volume, whereas the kidneys take care of salts, water, and waste removal.
C. Baroreceptors and chemoreceptors must work together to control blood pressure, whereas the kidneys work with the adrenal cortex.
D. Baroreceptors and chemoreceptors are both located near the adrenal cortex, whereas the kidneys are located near the heart.

Correct answer: A

Rationale: The correct answer is A. Baroreceptors and chemoreceptors send impulses from the arteries, while the kidneys control blood volume. Baroreceptors and chemoreceptors are responsible for monitoring blood pressure by sensing changes in pressure, oxygen levels, carbon dioxide levels, and pH within the arteries. They send out impulses to raise or lower blood pressure accordingly. On the other hand, the kidneys play a crucial role in regulating blood volume by absorbing salts and water and removing waste products. This key difference highlights that while baroreceptors and chemoreceptors are involved in monitoring and regulating blood pressure, the kidneys primarily focus on controlling blood volume. Choice B is incorrect because it inaccurately states that baroreceptors and chemoreceptors help maintain blood volume, which is not their primary function. Choice C is incorrect as it provides an inaccurate comparison between the roles of baroreceptors, chemoreceptors, and the kidneys. Choice D is incorrect as it wrongly associates the location of baroreceptors and chemoreceptors with the adrenal cortex, which is not accurate.

3. The information presented in this article is?

A. Against eating and drinking
B. Against drinking alcohol
C. Against eating rich foods
D. Unbiased and informative.

Correct answer: D

Rationale: The information presented in the article is unbiased in its approach. While the article highlights the potential issues related to overeating and alcohol abuse, it does not explicitly advocate against eating and drinking, drinking alcohol, or eating rich foods. The primary focus is on the negative consequences of overeating and alcohol abuse, making choice D, 'Unbiased and informative,' the correct answer. Choices A, B, and C are incorrect as they are not supported by the content of the article; it merely discusses the risks associated with overeating and alcohol abuse without taking a stand against them.