Nursing Elites

1. Dense irregular connective tissue, found in tendons and ligaments, provides:

• A. Flexibility
• B. Lubrication
• C. Insulation
• D. Tensile strength

Correct answer: D

Rationale: Dense irregular connective tissue, found in tendons and ligaments, provides tensile strength. Tendons and ligaments need to withstand tension and forces acting upon them, and the dense irregular connective tissue helps provide this strength and support. Choice A, flexibility, is incorrect because tendons and ligaments primarily provide support and stability rather than flexibility. Choice B, lubrication, is not the main function of dense irregular connective tissue in tendons and ligaments. Choice C, insulation, is also incorrect as this tissue type is not primarily involved in providing insulation.

2. Which of the following sentences is a compound sentence?

• A. The sky is clear, and the stars are bright.
• B. Although it was late, he stayed up.
• C. She reads books.
• D. While she reads, she listens to music.

Correct answer: A

Rationale: The correct answer is A. A compound sentence consists of two independent clauses joined by a conjunction or a semicolon. In sentence A, 'The sky is clear' and 'the stars are bright' are two independent clauses joined by the conjunction 'and.'<br>Choice B is a complex sentence as it has a dependent clause ('Although it was late') and an independent clause ('he stayed up').<br>Choice C is a simple sentence with only one subject and one verb.<br>Choice D is a complex sentence with a dependent clause ('While she reads') and an independent clause ('she listens to music').

3. What is the process by which a solid changes directly into a liquid?

• A. Melting
• B. Condensation
• C. Sublimation
• D. Deposition

Correct answer: A

Rationale: The correct answer is A: Melting. Melting is the process through which a solid substance changes directly into a liquid. Choice B, Condensation, is the transition from gas to liquid. Choice C, Sublimation, refers to the direct change from solid to gas. Choice D, Deposition, is the direct transition from gas to solid, not from solid to liquid as in the question.

4. What is the oxidation state of carbon in CH4?

• A. +1
• B. -1
• C. +2
• D. -4

Correct answer: D

Rationale: In CH4 (methane), carbon is bonded to four hydrogen atoms. Hydrogen has an oxidation state of +1. Since the overall charge of CH4 is 0, the oxidation state of carbon must be -4 to balance the charges. Each hydrogen contributes an oxidation state of +1, resulting in a total of +4 from hydrogen atoms. To achieve a total oxidation state of 0 for the molecule, carbon must have an oxidation state of -4 to offset the contribution from hydrogen. Therefore, the correct answer is -4. Choices A, B, and C are incorrect: +1 is the oxidation state of hydrogen, -1 is not the oxidation state of carbon in methane, and +2 is not the correct oxidation state of carbon in CH4.

5. Therefore, because, and accordingly are examples of which type of signal words?

• A. Emphasis words
• B. Compare/contrast words
• C. Cause-and-effect words
• D. Temporal sequencing words

Correct answer: C

Rationale: The correct answer is C. 'Therefore,' 'because,' and 'accordingly' are examples of cause-and-effect signal words. These words indicate a relationship between actions or events where one causes or results in another. Choice A, 'Emphasis words,' is incorrect as the given signal words do not emphasize a point but rather show cause and effect. Choice B, 'Compare/contrast words,' is incorrect as these signal words do not indicate a comparison or contrast between two ideas. Choice D, 'Temporal sequencing words,' is incorrect as the signal words provided do not specifically denote a sequence of events over time, but rather a cause-and-effect relationship.

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