Nursing Elites

1. A closet is filled with red, blue, and green shirts. If 1/4 of the shirts are green and 1/3 are red, what fraction of the shirts are blue?

• A. 1/2
• B. 1/3
• C. 5/12
• D. 1/4

Correct answer: C

Rationale: Let the total number of shirts be x. Given that 1/4 of the shirts are green and 1/3 are red, we have Green = x/4 and Red = x/3. To find the fraction of blue shirts, we subtract the fractions of green and red shirts from 1: Blue fraction = 1 - (1/4 + 1/3) = 1 - (3/12 + 4/12) = 1 - 7/12 = 5/12. Therefore, the fraction of blue shirts is 5/12. Choices A, B, and D are incorrect because they do not accurately represent the fraction of blue shirts given the information provided.

2. Which preposition best completes the sentence: 'She borrowed money from her friend.'?

• A. of
• B. from
• C. on
• D. for

Correct answer: B

Rationale: The correct preposition to use in this sentence is 'from' as it indicates the source of the borrowed money. 'Of' (Choice A) is incorrect as it does not convey the idea of obtaining something from a specific person. 'On' (Choice C) is also incorrect as it does not relate to borrowing money from someone. 'For' (Choice D) is incorrect as it implies a different purpose than borrowing money from her friend. Therefore, the most appropriate preposition in this context is 'from', making the sentence grammatically correct and conveying the intended meaning.

3. Where is the major site for nutrient absorption in the digestive system?

• A. Mouth
• B. Stomach
• C. Small intestine
• D. Large intestine

Correct answer: C

Rationale: The small intestine is recognized as the major site for nutrient absorption in the digestive system. It plays a crucial role in the digestion and absorption of nutrients from food. The small intestine's villi and microvilli provide a large surface area specialized for absorbing nutrients like carbohydrates, proteins, fats, vitamins, and minerals. This efficient absorption process is essential for supplying the body with the necessary nutrients for energy production, growth, and overall functioning. The mouth is primarily involved in the initial stages of digestion through mechanical and chemical breakdown of food. The stomach aids in further mechanical and chemical digestion but is not the primary site for nutrient absorption. The large intestine's main function is to absorb water and electrolytes, not nutrients.

4. What is the third-person singular, present tense form of the verb 'paint' in the sentence 'The artist paints breathtaking landscapes'?

• A. painted
• B. paints
• C. painting
• D. painter

Correct answer: B

Rationale: The correct answer is 'B' because in the present tense, the third-person singular form of the verb 'paint' is 'paints.' When conjugating verbs, it is essential to match the verb form with the subject. 'Paints' is the correct form for the third-person singular subject 'artist' in this sentence. Choices 'A,' 'C,' and 'D' are incorrect. 'A' is in the past tense, 'C' is a gerund form, and 'D' is a noun, not a verb form, which does not match the tense and subject in the sentence.

5. Which hormone, produced by the adrenal glands, helps regulate the body's response to stress, including increasing blood pressure and suppressing the immune system?

• A. Aldosterone
• B. Epinephrine
• C. Cortisol
• D. Insulin

Correct answer: C

Rationale: Cortisol is the correct answer. It is the hormone produced by the adrenal glands that helps regulate the body's response to stress. Cortisol plays a crucial role in increasing blood pressure and suppressing the immune system during stressful situations. Aldosterone, another hormone from the adrenal glands, primarily regulates salt and water balance in the body, not the stress response. Epinephrine, also known as adrenaline, is produced by the adrenal glands in response to stress, but its effects are more immediate and short-lived compared to cortisol. Insulin, produced by the pancreas, regulates blood sugar levels and is not directly involved in the body's response to stress.

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