Nursing Elites

1. Which of the following neurotransmitters slows down the activity of neurons, preventing them from becoming overexcited?

• A. Acetylcholine
• B. Dopamine
• C. GABA
• D. Serotonin

Correct answer: C

Rationale: The correct answer is C: GABA (gamma-aminobutyric acid). GABA acts as an inhibitory neurotransmitter that reduces neuronal activity, thus preventing overexcitation. Acetylcholine (choice A) is involved in muscle control and cognitive function, but it is not primarily responsible for slowing down neuronal activity. Dopamine (choice B) plays a role in reward-motivated behavior and motor control, rather than inhibiting neuronal firing. Serotonin (choice D) is involved in mood regulation, sleep, and appetite but does not primarily slow down neuronal activity to prevent overexcitation.

2. Which valves are part of the heart?

• A. Tricuspid, mitral, pulmonary, aortic
• B. Aortic, pulmonary, mitral, tricuspid
• C. Aortic, pulmonary, Erb's point, tricuspid
• D. Aortic, pulmonic, Erb's point, tricuspid

Correct answer: B

Rationale: The correct valves of the heart are the aortic, pulmonic, tricuspid, and mitral (bicuspid) valves. Choice B correctly lists the aortic, pulmonary, mitral, and tricuspid valves. Erb's point is not a valve but rather an auscultation point on the chest, making choices C and D incorrect.

3. Why does the author say it is important to buy locally grown food?

• A. Buying locally grown food supports people in your community.
• B. Locally grown food travels the least distance to reach you and therefore uses fewer resources.
• C. Locally grown food uses less packaging.
• D. Locally grown food is healthier for you because it has been exposed to fewer pesticides.

Correct answer: B

Rationale: The author stresses the significance of buying locally grown food due to its minimal travel distance, which results in reduced resource utilization. This aligns with the passage's primary environmental theme of conserving resources for the future. Choice A is incorrect because although buying locally grown food can support the community, the main focus in the passage is on resource conservation. Choice C is incorrect as the passage emphasizes the importance of packaging but does not specifically mention that locally grown food uses less packaging. Choice D is incorrect as the health aspect related to fewer pesticides is not discussed in the passage regarding the importance of buying locally grown food.

4. What is 0.5 liters in milliliters?

• A. 50 ml
• B. 500 ml
• C. 5 ml
• D. 0.5 ml

Correct answer: B

Rationale: 0.5 liters is equivalent to 500 milliliters. To convert liters to milliliters, you multiply by 1000 since 1 liter equals 1000 milliliters. Therefore, the correct answer is 500 ml (0.5 * 1000 = 500). Choices A, C, and D are incorrect because they do not correctly convert 0.5 liters to milliliters.

5. Julia is writing an essay about the influence of technology on interpersonal relationships. Which of the following sentences would NOT be a relevant supporting detail?

• A. Studies show that the more teenagers engage in social media, the less they engage with their peers.
• B. College students study and work on homework an average of 4-6 hours a day.
• C. Use of technology such as smartphones can lead to a lack of engagement in conversations.
• D. Some psychologists think that watching TV activates the same part of the brain as having an in-depth conversation.

Correct answer: B

Rationale: In an essay focusing on the impact of technology on interpersonal relationships, details about college students' study habits and homework workload are not directly related to the influence of technology on relationships. Choices A, C, and D are more relevant as they directly address the impact of technology, such as social media engagement, smartphone usage affecting conversations, and the comparison between TV-watching and brain activity during conversations.

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