Nursing Elites

1. Which word choices will correctly complete the sentence? Increasing the price of bus fares has had a greater effect on ridership than expected.

• A. affect; then
• B. affect; than
• C. effect; then
• D. effect; than

Correct answer: D

Rationale: The correct answer is D: 'effect; than.' In this sentence, 'effect' is the appropriate word to use as it signifies the result of increasing bus fares on ridership. Additionally, 'than' is the correct word for making a comparison. Choice A and B are incorrect as 'affect' is a verb, while 'effect' is the noun needed in this sentence. Choice C is incorrect as 'then' is used to indicate time or sequence, which is not suitable in this context.

2. Which of the following sentences uses the word 'smart' with a negative connotation, rather than a positive connotation or simply the word's denotation?

• A. Eliot's teacher said he was not quite gifted, but too smart for a general class.
• B. Eliot was smart to have studied the day before the test; he got a good grade.
• C. Eliot was identified by his teacher as one of the smart students in her classes.
• D. Eliot got into trouble when he gave a smart answer to his teacher's question.

Correct answer: D

Rationale: In sentence D, the word 'smart' is used with a negative connotation as it describes Eliot getting into trouble for giving a smart answer to his teacher's question. This implies that being smart in this context led to a negative consequence. Choices A, B, and C use 'smart' in a positive or neutral light, highlighting intelligence or wise decisions without any negative implications.

3. What is the function of arrector pili muscles?

• A. To control sweat production
• B. To contract and cause goosebumps
• C. To produce sebum
• D. To sense touch

Correct answer: B

Rationale: The correct function of arrector pili muscles is to contract and cause goosebumps. These small muscles are attached to hair follicles in mammals. When they contract, they cause the hair to stand on end, resulting in goosebumps. This physiological response is often triggered by cold temperatures or emotional states like fear, helping mammals conserve heat or appear larger in threatening situations. Choices A, C, and D are incorrect. Arrector pili muscles are not involved in controlling sweat production (Choice A), producing sebum (Choice C), or sensing touch (Choice D).

4. In a balanced chemical equation, the coefficients represent the:

• A. Number of elements
• B. Ratio of reactants and products
• C. Physical state of the substances
• D. Rate of the reaction

Correct answer: A

Rationale: The correct answer is A: 'Number of elements.' In a balanced chemical equation, coefficients represent the ratio of moles of each species involved in the reaction. They indicate the relative number of molecules or formula units of each compound taking part in the reaction. Choice B, 'Ratio of reactants and products,' is incorrect because the coefficients in a balanced equation do not represent the ratio of reactants and products directly, but rather the stoichiometry of the reaction. Choice C, 'Physical state of the substances,' is incorrect because the physical states (solid, liquid, gas, or aqueous) are denoted with symbols next to the chemical formula, not the coefficients. Choice D, 'Rate of the reaction,' is incorrect as coefficients in a balanced equation do not provide information about the rate of the reaction, which is determined by factors like temperature, concentration, and catalysts.

5. Which part of the brain is responsible for regulating body temperature, hunger, and thirst, and is considered a key player in the endocrine system?

• A. Amygdala
• B. Hippocampus
• C. Hypothalamus
• D. Thalamus

Correct answer: C

Rationale: The hypothalamus is responsible for regulating body temperature, hunger, and thirst, making it a vital component in maintaining homeostasis. It also plays a crucial role in the endocrine system by controlling the release of hormones from the pituitary gland. The amygdala primarily processes emotions, the hippocampus is associated with memory formation, and the thalamus acts as a relay station for sensory information. Therefore, the hypothalamus is the correct answer as it directly regulates the physiological processes mentioned in the question.

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