Nursing Elites

1. What type of chemical reaction is represented by AB → A + B?

• A. Synthesis
• B. Decomposition
• C. Single replacement
• D. Double replacement

Correct answer: B

Rationale: The chemical equation AB → A + B represents a decomposition reaction. In a decomposition reaction, a single compound breaks down into two or more simpler substances. In this specific reaction, compound AB is decomposed into its elements, A and B, making it a decomposition reaction. Choice A, Synthesis, involves the combination of two or more substances to form a more complex product, which is not the case here. Choices C and D, Single replacement and Double replacement, involve the exchange of ions between compounds or elements, which is not happening in the given reaction.

2. Which word is used incorrectly in the following sentence? Professor Turnbull will apprise us of the correct procedure for submitting our work.

• A. appraise
• B. correct
• C. procedure
• D. submitting

Correct answer: A

Rationale: The word 'apprise' is used incorrectly in the sentence. The correct word to use in this context is 'appraise,' which means to assess the value or quality of something, such as appraising the worth of an item. 'Apprise' means to inform or notify someone about something. Therefore, 'appraise' is the correct word choice. Choices B, C, and D are all used appropriately in the sentence and do not need to be changed.

3. Which word is NOT USED CORRECTLY in the sentence? They're going to the mall to pick up there uniforms for their coach.

• A. Their
• B. Going
• C. They're
• D. There

Correct answer: D

Rationale: The correct answer is D, 'There.' In this context, 'There' is incorrect as it should be replaced with 'their' to show possession, referring to the uniforms belonging to the team. 'Their' (choice A) is used correctly to indicate possession. 'Going' (choice B) and 'They're' (choice C) are also used correctly in the sentence.

4. An incandescent lamp consumes 60 Joules of energy per second. What is the power rating of this lamp?

• A. 1 Watt (W)
• B. 60 Watts (W)
• C. 1/60 Joules
• D. Impossible to determine without knowing the voltage

Correct answer: B

Rationale: Power is defined as energy consumed per unit time. If the lamp consumes 60 Joules of energy per second, the power rating is 60 Watts. Therefore, choice B is correct. Choice A ('1 Watt') is incorrect because the lamp consumes 60 Joules per second, not 1 Joule per second. Choice C ('1/60 Joules') is incorrect as it does not represent the power rating. Choice D ('Impossible to determine without knowing the voltage') is incorrect because power can be calculated using energy consumption per unit time without needing to know the voltage.

5. What is the function of parathyroid hormone?

• A. Increasing energy levels
• B. Stimulating cell reproduction
• C. Speeding up metabolism
• D. Activating vitamin D

Correct answer: D

Rationale: The correct answer is D. Parathyroid hormone plays a crucial role in activating vitamin D. This activation occurs in the kidneys, where parathyroid hormone stimulates the conversion of inactive vitamin D to its active form. Active vitamin D is essential for maintaining proper levels of calcium and phosphorus in the body, which are important for bone health and other physiological functions. Choices A, B, and C are incorrect because parathyroid hormone is not involved in increasing energy levels, stimulating cell reproduction, or speeding up metabolism. Its primary function is related to calcium and phosphorus homeostasis through the activation of vitamin D.

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