Nursing Elites

1. Which word best completes the sentence: 'The students _______ finished their exams.'

• A. has
• B. have
• C. is
• D. was

Correct answer: B

Rationale: In the sentence, 'The students' is referring to a plural subject. Since 'students' is plural, the correct verb should also be plural. 'Have' is the correct verb form for the plural subject 'students' in this sentence. Choices A, C, and D are incorrect because 'has' and 'is' are singular verbs, while 'was' is past tense and does not agree with the present tense of 'finished.' Therefore, the correct choice is B: 'have.'

2. What is the length of DNA that can code for a particular protein?

• A. Chromosome
• B. Nucleotide
• C. Gene
• D. Ribosome

Correct answer: C

Rationale: The correct answer is C: Gene. A gene is a specific segment of DNA that contains the information necessary to produce a particular protein. Genes are responsible for coding proteins, and each gene carries the instructions for a specific protein. Chromosomes consist of many genes and are not a specific length that codes for a protein. Nucleotides are the building blocks of DNA and are not a length that codes for a protein. Ribosomes are cellular organelles involved in protein synthesis and do not directly code for proteins.

3. Which organ serves as the human body's command center, integrating sensory information and coordinating movement and vital functions?

• A. Lungs
• B. Brain
• C. Kidneys
• D. Stomach

Correct answer: B

Rationale: The brain is the human body's command center, responsible for integrating sensory information, coordinating movement, and regulating vital functions such as breathing, heart rate, and digestion. While the lungs, kidneys, and stomach perform crucial functions in the body, they do not have the central role of serving as the command center for these essential bodily processes. The lungs are primarily involved in respiration, the kidneys in filtering blood and regulating fluid balance, and the stomach in digestion. However, none of these organs have the comprehensive control over sensory integration, movement coordination, and vital functions like the brain does.

4. When sodium hydroxide (NaOH) reacts with hydrochloric acid (HCl), the resulting product is:

• A. Hydrogen gas and sodium chloride (NaCl)
• B. Chlorine gas and sodium oxide (Na2O)
• C. Sodium metal (Na) and water (H2O)
• D. No reaction occurs.

Correct answer: A

Rationale: When sodium hydroxide (NaOH) reacts with hydrochloric acid (HCl), a neutralization reaction occurs. The products of this reaction are water (H2O) and a salt, which is sodium chloride (NaCl). The chemical equation for this reaction is: NaOH + HCl -> NaCl + H2O. Choice B is incorrect because chlorine gas and sodium oxide are not the products of this reaction. Choice C is incorrect as sodium metal and water are not the products formed in this neutralization reaction. Choice D is incorrect because a reaction does occur between NaOH and HCl, resulting in the formation of NaCl and H2O. Therefore, the correct answer is A: Hydrogen gas and sodium chloride (NaCl).

5. Which of the following would most likely be found in an academic research paper on the world’s food supply?

• A. It is ridiculous that so many people in the world are hungry while others just throw away tons of uneaten food.
• B. I have always believed that it is our moral duty as a people to provide food and clean water to those who do not have access to it, which is why I have made research of the food supply my life’s work.
• C. Advances in agricultural technology over the past five decades have led to a steady increase in the global food supply, and the populations of many countries around the world are benefiting.
• D. Poor people should appeal to their governments for help feeding their families.

Correct answer: C

Rationale: Option C is the most likely to be found in an academic research paper on the world's food supply because it presents a factual statement about advances in agricultural technology leading to an increase in the global food supply. This type of information is commonly featured in academic research papers as it highlights trends, developments, and impacts on global food systems. Options A, B, and D are more opinion-based or advocacy-oriented statements, which are typically not the focus of academic research papers. Academic research papers aim to present objective information, data-driven analysis, and scholarly insights rather than personal opinions or advocacy perspectives.

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