Nursing Elites

1. What function do ribosomes serve within the cell?

• A. Ribosomes are responsible for cell movement.
• B. Ribosomes aid in protein synthesis.
• C. Ribosomes help protect the cell from its environment.
• D. Ribosomes have enzymes that help with digestion.

Correct answer: B

Rationale: Ribosomes serve a crucial role in protein synthesis by translating mRNA into proteins. They are not involved in cell movement, protecting the cell from the environment, or aiding in digestion. Choice A is incorrect because ribosomes are not responsible for cell movement. Choice C is incorrect because ribosomes do not primarily protect the cell from its environment. Choice D is incorrect because ribosomes do not have enzymes that aid in digestion.

2. Unfortunately, the belief that changelings could be convinced to leave was not just an innocuous superstition; however, on some occasions, harm came to the individual who was thought to be a changeling. Which is the best way to revise and combine the underlined portion of the sentences?

• A. an innocuous superstition, on some occasions,
• B. an innocuous superstition, but on some occasions,
• C. an innocuous superstition; however, on some occasions,
• D. an innocuous superstition: on some occasions,

Correct answer: C

Rationale: The best way to revise and combine the underlined portion of the sentences is by using a semicolon to show a stronger connection between the two ideas. Using 'however' after the semicolon helps to contrast the innocuous superstition with the negative outcome that sometimes occurred, providing a smoother flow between the ideas. Choice A is incorrect as it lacks a proper conjunction or punctuation to connect the ideas. Choice B is incorrect as 'but' does not effectively contrast the ideas as 'however' does. Choice D is incorrect as a colon is used to introduce a list or explanation, which is not suitable in this context where a contrast is needed.

3. Which of the following sentences correctly uses a transition word?

• A. Gilda is a hardworking student; therefore, she earned a good grade on her essay.
• B. Gilda is a hardworking student; therefore she earned a good grade on her essay.
• C. Gilda is a hardworking student: therefore, she earned a good grade on her essay.
• D. Gilda is a hardworking student and therefore she earned a good grade on her essay.

Correct answer: A

Rationale: Choice A is the correct answer. 'Therefore' is correctly used as a transition word with proper punctuation in this sentence. In a compound sentence like this, a semicolon is used before the transition word to connect two independent clauses. Choice B is incorrect because it lacks the necessary punctuation to separate the independent clauses. Choice C is incorrect as a colon is not typically used before a transition word in this context. Choice D is incorrect because 'and' does not function as a transition word in this sentence.

4. What would be an appropriate control variable for this experiment?

• A. The period
• B. The length of the string
• C. The mass of the ball
• D. The color of the ball

Correct answer: C

Rationale: The mass of the ball would be an appropriate control variable for this experiment. By keeping the mass constant, you can ensure that any observed effects are not due to variations in mass but rather to the manipulated independent variable. Controlling the mass helps isolate and identify the true impact of the independent variable being studied. Choices A, B, and D are incorrect. The period and length of the string are more likely to be independent variables or factors being manipulated in the experiment. The color of the ball is considered an extraneous variable that is not typically controlled for in this type of experiment.

5. What energy conversion occurs in a solar cell?

• A. Electrical energy to light energy
• B. Chemical energy to electrical energy
• C. Solar energy to thermal energy
• D. Solar energy to electrical energy

Correct answer: D

Rationale: Solar cells, also known as photovoltaic cells, convert solar energy from sunlight directly into electrical energy through a process called the photovoltaic effect. This process involves the absorption of photons from sunlight, which then generate an electric current. Choice A is incorrect because solar cells do not convert electrical energy into light energy. Choice B is incorrect as solar cells do not involve chemical energy conversion. Choice C is incorrect because solar cells do not primarily convert solar energy into thermal energy. Therefore, the correct answer is D) Solar energy to electrical energy.

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