Nursing Elites

1. Which part of the eye is responsible for color vision?

• A. Cornea
• B. Iris
• C. Retina
• D. Lens

Correct answer: C

Rationale: The correct answer is option C: Retina. The retina contains photoreceptor cells, including cones that are responsible for color vision. Cones are sensitive to different wavelengths of light, allowing us to perceive and differentiate various colors. Choice A, Cornea, is the transparent outer layer of the eye that helps focus light. It does not play a direct role in color vision. Choice B, Iris, is the colored part of the eye that controls the size of the pupil and regulates the amount of light entering the eye. While it is essential for adjusting light levels, it is not directly involved in color vision. Choice D, Lens, is responsible for focusing light onto the retina. It helps to form clear images on the retina but does not play a role in color vision.

2. What is the meaning of the word compelling as used in the passage about Sunny-Side Up?

• A. Reasonable.
• B. Convincing.
• C. Common.
• D. Worthwhile.

Correct answer: B

Rationale: In this context, "compelling" refers to something that is convincing or persuasive. The passage presents a strong argument in favor of sunlight's benefits, particularly in relation to vitamin D synthesis. Therefore, B is the correct choice as it aligns with the author's intent to present a convincing argument.

3. What are proteins made up of?

• A. Fatty acids
• B. Amino acids
• C. Nucleotides
• D. Sugars

Correct answer: B

Rationale: Proteins are made up of amino acids. Amino acids are the building blocks of proteins, essential for various biological processes in the body such as enzyme function, transport, and structural support. Fatty acids (Choice A) are components of lipids, not proteins. Nucleotides (Choice C) are the building blocks of nucleic acids like DNA and RNA, not proteins. Sugars (Choice D) are carbohydrates and are not the primary components of proteins.

4. The patients are under 'quarantine'. What does this mean?

• A. Confinement away from the general population
• B. A specialist’s care
• C. Experimental drug therapy
• D. Imprisonment in a rehabilitation unit

Correct answer: A

Rationale: The correct answer is A: 'Confinement away from the general population.' Quarantine refers to keeping someone isolated from the general population to prevent the spread of disease. Choice B, 'A specialist’s care,' is incorrect as it refers to medical treatment by a specialist, not isolation. Choice C, 'Experimental drug therapy,' is incorrect as it involves the administration of new drugs for research purposes, not isolation. Choice D, 'Imprisonment in a rehabilitation unit,' is incorrect as it implies being detained in a rehabilitation facility, not isolation for health reasons.

5. What is the pH of a neutral solution?

• A. 7
• B. 0
• C. 14
• D. 4

Correct answer: A

Rationale: The correct answer is A: 7. A neutral solution has a pH of 7. In the pH scale, values below 7 are acidic, 7 is neutral, and values above 7 are basic. Therefore, a solution with a pH of 7 is considered neutral as it is neither acidic nor basic. Choices B, C, and D are incorrect because a pH of 0 indicates a strong acid, a pH of 14 indicates a strong base, and a pH of 4 indicates an acidic solution. None of these values represent a neutral solution.

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