Nursing Elites

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. What does the word 'suit' mean in the passage about Bridge?

• A. A set of clothing to be worn together.
• B. Any of the four sets into which a deck of cards is divided.
• C. To request or appeal persistently.
• D. To be convenient or right for.

Correct answer: B

Rationale: The correct answer is B: 'Any of the four sets into which a deck of cards is divided.' In the context of card games like Bridge, 'suit' refers to one of the four divisions of a deck of cards - spades, hearts, diamonds, or clubs. Each suit contains cards of different ranks, and during the game, players must follow suit if possible, meaning they must play a card of the same suit that was led. This is crucial for understanding card hierarchy and gameplay in Bridge. Choice A is incorrect because it defines 'suit' in terms of clothing, which is not relevant to the context of the passage. Choice C is incorrect as it defines 'suit' as a verb meaning to request persistently, which is unrelated to the card game. Choice D is also incorrect as it defines 'suit' as an adjective meaning to be convenient or right for, which is not the meaning intended in the passage about Bridge.

4. What is the meaning of the word exposed as used in the first paragraph about Toxins and Your Health?

• A. Uncovered.
• B. Subjected.
• C. Visible.
• D. Divulged.

Correct answer: B

Rationale: In the context of the passage, "exposed" means to be subjected to harmful elements. It suggests vulnerability to these toxins, which can lead to serious health issues later in life. The other options do not accurately capture the implications of "exposed" in relation to toxic substances, making B the correct choice.

5. What is the meaning of the word composed in the first paragraph?

• A. To consist of
• B. To break apart
• C. To mix with other elements
• D. To heat up

Correct answer: A

Rationale: The word 'composed' means to be made up of or to consist of something. In the provided extract, it describes how a single drop of water is composed of an oxygen atom and two hydrogen atoms. Therefore, the correct answer is 'To consist of.' Choice B, 'To break apart,' is incorrect as it is the opposite of 'composed.' Choice C, 'To mix with other elements,' is incorrect as 'composed' refers to being made up of specific components, not mixed with others. Choice D, 'To heat up,' is unrelated to the meaning of 'composed' in this context.

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