Nursing Elites

1. If a biochemist isolates a large amount of pyruvate, which part of the cell is he working with?

• A. Chloroplasts
• B. Cytoplasm
• C. Mitochondria
• D. Nucleus

Correct answer: B

Rationale: The correct answer is B: Cytoplasm. Pyruvate is a product of glycolysis, a metabolic pathway that takes place in the cytoplasm of the cell. Therefore, a biochemist isolating a large amount of pyruvate would be working with the cytoplasm of the cell. Choice A, Chloroplasts, is incorrect because pyruvate is not produced in chloroplasts, which are responsible for photosynthesis. Choice C, Mitochondria, is incorrect as pyruvate is produced in the cytoplasm before entering the mitochondria for further metabolism. Choice D, Nucleus, is incorrect as the nucleus is not involved in the production or isolation of pyruvate, which is a metabolic intermediate.

2. Autobiographies and memoirs are examples of what form of writing?

• A. Fiction
• B. Narrative
• C. Informational text
• D. Research papers

Correct answer: B

Rationale: Autobiographies and memoirs are examples of narrative writing. Narrative writing is a form of writing that tells a story or recounts events. Autobiographies are personal accounts of one's life written by the person themselves, while memoirs are also personal accounts but focus on specific memories or events. Fiction (Choice A) refers to imaginary stories, not real-life accounts like autobiographies and memoirs. Informational text (Choice C) presents factual information without a narrative structure. Research papers (Choice D) are academic documents that present research findings and analysis, not personal accounts like autobiographies and memoirs.

3. Which of the following sentences demonstrates correct use of an apostrophe?

• A. In one version of the story, there are seven fairies invited to the christening, while in another version there are twelve fairies.
• B. Some historians believe that the number twelve represents the shift from a lunar year of thirteen months to a solar year of twelve months.
• C. Other historians claim that the symbolism in the fairy tale is more about nature and the shifting seasons.
• D. Regardless of its meaning, the fairy tale remains popular and has been immortalized in Tchaikovsky's music for the ballet.

Correct answer: C

Rationale: Choice C, 'Other historians claim that the symbolism in the fairy tale is more about nature and the shifting seasons,' demonstrates the correct use of an apostrophe. The apostrophe in 'season’s' indicates the possessive form of 'seasons,' correctly showing ownership by the shifting seasons. Choices A, B, and D do not showcase the correct use of an apostrophe. Choice A incorrectly uses 'fairy’s' instead of 'fairies,' which is the plural form of 'fairy.' Choice B uses 'historians’' which is correct for the possessive form but does not relate to the use of an apostrophe. Choice D correctly uses 'Tchaikovsky's' to indicate possession by Tchaikovsky.

4. What property of a substance remains constant regardless of the amount of the substance present?

• A. Mass
• B. Weight
• C. Density
• D. Volume

Correct answer: C

Rationale: The correct answer is C, Density. Density is a physical property of a substance that remains constant regardless of the amount of the substance present. Mass (Choice A) is the amount of matter in an object and can change depending on the amount of the substance. Weight (Choice B) is the force exerted on an object due to gravity and can vary with location. Volume (Choice D) is the amount of space occupied by a substance and can change if the amount of the substance changes.

5. Which of the following represents the strongest scientific argument?

• A. Scientific Hypothesis
• B. Scientific Law
• C. Scientific Study Conclusion
• D. Scientific Theory

Correct answer: D

Rationale: The correct answer is D, 'Scientific Theory.' A scientific theory is a well-substantiated explanation of an aspect of the natural world. It is based on a large body of evidence and has withstood rigorous testing and scrutiny. Scientific theories are considered the strongest scientific arguments because they have predictive power and are supported by a significant amount of empirical data. Choice A, 'Scientific Hypothesis,' is a proposed explanation for a phenomenon but lacks the extensive evidence and testing that theories undergo. Choice B, 'Scientific Law,' describes a consistent and predictable relationship between variables but does not explain why the relationship exists. Choice C, 'Scientific Study Conclusion,' may be based on a single study and lacks the comprehensive nature and validation that theories possess.

Similar Questions