Nursing Elites

1. Which vitamin is important for the absorption of iron?

• A. Vitamin C
• B. Vitamin D
• C. Vitamin K
• D. Vitamin B12

Correct answer: A

Rationale: The correct answer is Vitamin C. Vitamin C is essential for the absorption of iron, especially from plant-based sources. It aids in converting non-heme iron (found in plants) into a form that is easier for the body to absorb. This is crucial in preventing iron-deficiency anemia, making Vitamin C a key nutrient for overall health. Vitamin D (choice B) is important for calcium absorption and bone health, not iron absorption. Vitamin K (choice C) plays a role in blood clotting and bone metabolism, not iron absorption. Vitamin B12 (choice D) is important for red blood cell formation and neurological function but is not directly involved in iron absorption.

2. Which word is not spelled correctly in the context of the following sentence? Their chairs were stationary, but the interns seated in them were agitated.

• A. Their
• B. stationary
• C. seated
• D. agitated

Correct answer: B

Rationale: The word 'stationary' in the sentence should be spelled as 'stationary.' 'Stationery' refers to writing paper and other office supplies, while 'stationary' means not moving or still. In this context, the correct word should be 'stationary' to describe the chairs that are not moving.

3. What word describes a trip to Hawaii that a vacationer FELT was too short?

• A. Ponderous
• B. Salacious
• C. Ephemeral
• D. Erudite

Correct answer: C

Rationale: The word 'ephemeral' means lasting for a very short time. In this context, a vacationer feeling that their trip to Hawaii was too short implies that they found it to be brief or fleeting, making 'ephemeral' the most suitable choice among the options provided. Ponderous means slow and clumsy; salacious means obscene or lustful; erudite means showing great knowledge or learning. These words do not convey the idea of brevity or shortness, unlike 'ephemeral,' which perfectly fits the scenario described.

4. Which statement regarding energy content is true?

• A. Decomposers < secondary consumers
• B. Primary consumers < producers
• C. Producers > secondary consumers
• D. Secondary consumers < primary consumers

Correct answer: C

Rationale: The correct answer is C: "Producers > secondary consumers." Producers, like plants, are the foundation of the energy pyramid, containing the highest energy content in an ecosystem. They convert solar energy into chemical energy through photosynthesis. Secondary consumers, being organisms that feed on other organisms, have lower energy content compared to producers. This hierarchy in energy content is due to the transfer of energy through trophic levels. Choice A is incorrect because decomposers, though essential for nutrient recycling, typically have lower energy content than secondary consumers. Choice B is incorrect because primary consumers, which feed directly on producers, have lower energy content than producers. Choice D is incorrect because secondary consumers have lower energy content compared to primary consumers.

5. Which gland produces hormones that regulate metabolism?

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

Correct answer: B

Rationale: The thyroid gland is responsible for producing hormones, such as thyroxine, that play a crucial role in regulating metabolism, energy production, and overall growth and development in the body. The pituitary gland, while important for hormone regulation, does not primarily regulate metabolism. The adrenal gland is responsible for producing hormones like cortisol and adrenaline, which are more related to stress response than direct metabolism regulation. The pineal gland mainly produces melatonin, which regulates sleep-wake cycles and not metabolism. Therefore, the correct answer is the thyroid gland.

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