Nursing Elites

1. What is the meaning of the word 'enlist' as it is used in the second paragraph?

• A. call into service
• B. write down
• C. send away
• D. put across

Correct answer: A

Rationale: In the context of the immune system, 'enlist' means to call into service. Immune cells recruit other cells to fight infection by producing chemicals that regulate their growth, behavior, and direct new recruits to trouble spots. This process is essential for the immune system's defense mechanism. The other choices are incorrect: 'write down' and 'put across' do not capture the action of mobilizing immune cells, and 'send away' is opposite in meaning to what is happening in the immune response.

2. What is the major difference between matter at the nanoscale and matter at larger scales such as millimeters or inches?

• A. At the nanoscale, metals are rigid, and at larger scales, they are bendable.
• B. Matter has different and special characteristics at the nanoscale.
• C. At the nanoscale, matter has different properties than matter at the atomic level.
• D. There is no difference.

Correct answer: B

Rationale: The correct answer is B. Matter at the nanoscale exhibits unique and special characteristics that distinguish it from matter at larger scales. This can include properties like increased surface area, different melting points, altered conductivity, and enhanced reactivity. Choice A is incorrect as metals at the nanoscale can be more rigid compared to their larger scale counterparts. Choice C is incorrect because matter at the nanoscale has properties that are distinct from both atomic and larger scales. Choice D is incorrect as there are significant differences in how matter behaves and interacts at the nanoscale compared to larger scales.

3. What is the main idea of the passage about Toxins and Your Health?

• A. Environmental toxins may have dire health effects over time.
• B. Of three toxins studied, lead has the worst effect on health.
• C. Toxins may accumulate in the bones of older patients.
• D. Johns Hopkins University has discovered a new use for lead.

Correct answer: A

Rationale: The passage emphasizes the long-term effects of environmental toxins such as lead, pesticides, and mercury on brain health, particularly as individuals age. Dr. Brian Schwartz's quote highlights the link between environmental exposure and cognitive decline, framing the entire discussion around the potential health ramifications of such exposure over time. This clearly aligns with choice A, making it the main idea of the passage.

4. What is the meaning of the word respite as used in the first paragraph?

• A. Relief
• B. Treatment
• C. Guardian
• D. Specialist

Correct answer: A

Rationale: In this context, 'respite' refers to relief, providing caregivers with temporary rest or a break from their caregiving duties. The word 'respite' is associated with giving caregivers a brief period of relief, not with treatment, guardianship, or specialization. The extract mentions 'respite services' along with caregiver services, indicating that respite is a form of support or relief for caregivers.

5. What motivates athletes to participate in the Summer Olympic Games?

• A. Athletes strive for winning medals.
• B. Athletes seek opportunities to travel the world.
• C. Athletes aim for financial gain.
• D. Athletes feel patriotic pride.

Correct answer: D

Rationale: The main reason athletes want to participate in the Summer Olympic Games is often driven by a sense of patriotic pride. Representing their country and showcasing their skills on an international platform instills a deep sense of national pride in athletes. While winning medals is a significant goal for many athletes, the primary motivation to participate in the Olympics is often rooted in representing their nation. Choices A, B, and C are incorrect because although athletes may aspire to win medals, travel the world, or earn money through endorsements, the core driving factor for most athletes in the Summer Olympics is the patriotic pride of representing their country.

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