Nursing Elites

1. Solve for x: 4x - 8 = 16.

• A. x = 7
• B. x = 7
• C. x = 4
• D. x = 6

Correct answer: D

Rationale: To solve the equation 4x - 8 = 16, first, add 8 to both sides to isolate 4x: 4x = 24. Then, divide by 4 to solve for x: x = 6. Therefore, the correct answer is D. Choice A, x = 7, is incorrect as the correct solution is x = 6. Choices B and C are duplicates of choice A and are also incorrect.

2. The _____ of this weather was that we all got wet.

• A. result
• B. effect
• C. affect
• D. impact

Correct answer: B

Rationale: In this sentence, 'effect' is the correct term to use as it refers to the outcome or consequence of the weather, which was that everyone got wet. 'Effect' is a noun that indicates the result of a particular action or situation. Choice A 'result' is incorrect because it refers to the outcome of an action, not the outcome of weather. Choice C 'affect' is incorrect as it is used as a verb to show influence or make a difference. Choice D 'impact' is incorrect because it refers to a strong influence or effect.

3. Which gland is known as the 'master gland' of the body?

• A. Thyroid gland
• B. Adrenal gland
• C. Pituitary gland
• D. Pineal gland

Correct answer: C

Rationale: The pituitary gland, often referred to as the 'master gland,' controls the release of hormones from other endocrine glands in the body. It secretes various hormones that regulate many bodily functions, making it a central and vital component of the endocrine system. The thyroid gland (Choice A) regulates metabolism, the adrenal gland (Choice B) produces hormones like adrenaline, and the pineal gland (Choice D) secretes melatonin, but none of these glands are considered the 'master gland' that controls the functions of other endocrine glands.

4. Which statement could be inferred from the passage?

• A. The Georgia lab had conducted a previous study on the connection between exercise and energy.
• B. Exercise regimes are not recommended for patients with serious health problems.
• C. An increase in energy levels does not always correspond directly to a reduction in fatigue.
• D. There were fewer than 10 participants in each group in the Georgia study.

Correct answer: A

Rationale: The correct answer is A. The passage mentions a previous study by the same team on the connection between exercise and energy, indicating that the lab had conducted such research before. Choice B is incorrect because the passage actually states that low-impact exercise can help reduce fatigue in patients with serious health conditions. Choice C is incorrect as the passage indicates that an increase in energy levels does correspond to a reduction in fatigue. Choice D is incorrect as the passage does not provide information on the exact number of participants in each group.

5. Physical factors such as temperature and pH can alter enzyme activity because they have an effect on the enzyme's ___________.

• A. acidity
• B. shape
• C. chemistry
• D. substrate

Correct answer: B

Rationale: Physical factors such as temperature and pH can alter enzyme activity by affecting the enzyme's shape. Enzymes rely on their specific shapes to function properly and catalyze reactions. Any changes in temperature or pH can disrupt these shapes, causing the enzyme to become denatured and lose its functionality. Therefore, alterations in temperature and pH can impact enzyme activity by directly affecting their shapes. Choices A, C, and D are incorrect because while pH can affect acidity and chemical properties of the enzyme, and temperature can influence the enzyme-substrate interaction, the primary reason for enzyme activity alteration due to temperature and pH is the change in the enzyme's shape.

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