Nursing Elites

1. What are the building blocks of proteins?

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

Correct answer: C

Rationale: Proteins are macromolecules made up of long chains of amino acids. Amino acids are the building blocks of proteins and are linked together through peptide bonds to form polypeptide chains, which then fold into specific three-dimensional structures to carry out various functions in the body. Sugars (choice A) are the building blocks of carbohydrates, fatty acids (choice B) are the building blocks of lipids, and nucleotides (choice D) are the building blocks of nucleic acids like DNA and RNA. Therefore, the correct answer is amino acids (choice C), as they are specifically responsible for protein synthesis.

2. Which of the following structures is present in the sentence: “The tall man wearing a black raincoat, a yellow hat, and one red shoe entered the restaurant, walked to the back, and sat down alone at the smallest table farthest away from the staff and other patrons.”?

• A. Simple
• B. Complex
• C. Compound
• D. Compound-complex

Correct answer: B

Rationale: The sentence is considered a complex sentence because it consists of an independent clause ('The tall man entered the restaurant, walked to the back, and sat down alone at the smallest table farthest away from the staff and other patrons') and a dependent clause beginning with 'wearing a black raincoat, a yellow hat, and one red shoe.' The dependent clause cannot stand alone as a complete sentence. Choice A is incorrect because a simple sentence contains only one independent clause. Choice C is incorrect as a compound sentence consists of two or more independent clauses. Choice D is incorrect as a compound-complex sentence contains two or more independent clauses and at least one dependent clause.

3. Round to the nearest tenth: 8.067.

• A. 8.07
• B. 8.1
• C. 8
• D. 8.11

Correct answer: A

Rationale: When rounding a number to the nearest tenth, you look at the digit in the hundredths place. Since 8.067 has a 6 in the hundredths place, which is equal to or greater than 5, you round the tenths place up by 1. Therefore, rounding 8.067 to the nearest tenth gives 8.07. Choice B (8.1) would be incorrect because 8.067 is closer to 8.1 than to 8, but it's not quite there. Choice C (8) is incorrect as it would be rounding down, and Choice D (8.11) is incorrect as it is rounding to the nearest hundredth, not the nearest tenth.

4. Memory B cells and memory T cells are crucial for immunological memory. How does immunological memory enhance the immune response upon re-exposure to a pathogen?

• A. It increases the production of the same ineffective antibodies.
• B. It allows for a quicker and more robust immune response.
• C. It suppresses the immune system to prevent overreaction.
• D. It triggers a completely different immune response.

Correct answer: B

Rationale: Immunological memory enhances the immune response upon re-exposure to a pathogen by allowing for a quicker and more robust immune response. Memory B cells and memory T cells are primed to recognize the pathogen quickly and mount a faster and more effective response, leading to a more efficient clearance of the pathogen. Choice A is incorrect because immunological memory does not increase the production of ineffective antibodies but rather promotes the production of specific antibodies that are effective against the pathogen. Choice C is incorrect as immunological memory does not suppress the immune system; instead, it enhances the response. Choice D is incorrect because immunological memory leads to a recall of the specific immune response mounted during the initial exposure, not a completely different response.

5. Identify the pronoun in the following sentence:

• A. quickly
• B. finished
• C. her
• D. before

Correct answer: C

Rationale: The correct answer is 'C: her.' Pronouns replace nouns. In this sentence, 'her' is a pronoun that replaces a specific female person's name, indicating ownership of the homework. Pronouns like 'her,' 'he,' 'it,' and 'they' are commonly used to avoid repetition of nouns and make sentences less repetitive and more concise. Choices A, B, and D are not pronouns. 'Quickly' and 'before' are adverbs, while 'finished' is a verb. Therefore, they do not replace nouns and cannot function as pronouns in this context.

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