Nursing Elites

1. Which example uses correct punctuation?

• A. "I really can't make it," he answered, "you should probably go without me."
• B. "I really can't make it," he answered. "you should probably go without me."
• C. "I really can't make it," he answered. "You should probably go without me."
• D. "I really can't make it," he answered, "you should probably go without me."

Correct answer: A

Rationale: Choice A uses proper dialogue punctuation. The comma appears inside the closing quotation mark after 'make it,' and 'you' remains lowercase because it continues the same sentence. In Choice B, there is a period instead of a comma after 'answered,' breaking the sentence incorrectly. Choice C incorrectly places the comma outside the quotation mark after 'make it.' Choice D, similar to Choice B, uses a period instead of a comma after 'answered,' leading to incorrect punctuation.

2. Which of the following organs is NOT part of the circulatory system?

• A. Kidneys
• B. Heart
• C. Blood
• D. Blood vessels

Correct answer: A

Rationale: The correct answer is A: Kidneys. The kidneys are not part of the circulatory system. While the circulatory system includes the heart, blood, and blood vessels (arteries, veins, capillaries), the kidneys belong to the urinary system. The kidneys are responsible for filtering waste products from the blood and producing urine. Choice B, the heart, is a vital organ in the circulatory system responsible for pumping blood. Choice C, blood, is a key component of the circulatory system that carries oxygen and nutrients to the body's tissues. Choice D, blood vessels (arteries, veins, capillaries), facilitate the circulation of blood throughout the body, playing a crucial role in the circulatory system.

3. What is the role of RNA in protein synthesis?

• A. Stores genetic information
• B. Decodes genetic information
• C. Provides energy for the process
• D. Transports amino acids to the ribosomes

Correct answer: B

Rationale: RNA plays a crucial role in protein synthesis by decoding the genetic information stored in DNA and carrying it to the ribosomes where proteins are synthesized. This process involves transcription, where RNA is synthesized from DNA, and translation, where the information in RNA is used to assemble amino acids into proteins. RNA acts as a messenger between DNA and the ribosomes, ensuring that the correct sequence of amino acids is used to build proteins according to the genetic code. Option A is incorrect because DNA, not RNA, stores genetic information. Option C is incorrect because RNA does not provide energy for protein synthesis; energy is usually provided by ATP molecules. Option D is incorrect because tRNA (transfer RNA) is responsible for transporting amino acids to the ribosomes, not RNA in general. Therefore, option B is the most appropriate choice as it accurately describes the role of RNA in protein synthesis.

4. What type of macromolecule is hemoglobin?

• A. Carbohydrate
• B. Lipid
• C. Protein
• D. Nucleic acid

Correct answer: C

Rationale: The correct answer is C: Protein. Hemoglobin is a protein responsible for carrying oxygen in the blood. Proteins are macromolecules made up of amino acids and play a vital role in various biological functions, including the transportation of molecules like oxygen. Choices A, B, and D are incorrect because carbohydrates, lipids, and nucleic acids are different types of macromolecules that have distinct structures and functions. Carbohydrates are mainly involved in energy storage and structural support, lipids are essential for energy storage and cell membrane structure, and nucleic acids are responsible for storing and transmitting genetic information.

5. Which of the answer choices best combines the following four sentences into two sentences? I'm usually good about keeping track of my keys. I lost them. I spent hours looking for them. I found them in the freezer.

• A. I lost my keys, even though I'm usually good about keeping track of them. I found them in the freezer and spent hours looking for them.
• B. I spent hours looking for my keys and found them in the freezer. I had lost them, even though I'm usually good about keeping track of them.
• C. I'm usually good about keeping track of my keys, but I lost them. After spending hours looking for them, I found them in the freezer.
• D. I'm usually good about keeping track of my keys, but I lost them in the freezer. I had to spend hours looking for them.

Correct answer: C

Rationale: Combining the sentences is most effective when using 'but' to contrast the two ideas. Option C is concise, clear, and provides the best flow, accurately capturing both the contrast 'but I lost them' and the sequence of events 'After spending hours looking for them, I found them in the freezer.' Options A, B, and D do not effectively combine the sentences or maintain the sequence of events and contrast between keeping track of the keys and losing them.

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