Nursing Elites

1. What is the main function of the small intestine?

• A. To store food and break it down into smaller pieces
• B. To absorb nutrients into the bloodstream
• C. To produce enzymes that help digest food
• D. To eliminate waste products from the body

Correct answer: B

Rationale: The small intestine is a crucial part of the digestive system responsible for absorbing nutrients into the bloodstream. This absorption primarily occurs through the villi lining the small intestine, which increases the surface area available for nutrient absorption. Nutrients like carbohydrates, proteins, fats, vitamins, and minerals are absorbed into the bloodstream to support various bodily functions such as energy production, growth, and repair. Choices A, C, and D are incorrect as they do not accurately depict the primary function of the small intestine, which is nutrient absorption.

2. Which of the following sentences best represents style and clarity of expression?

• A. Without adequate preparation, the test was likely to be a failure for Zara.
• B. The test was likely to be a failure for Zara without adequate preparation.
• C. Without adequate preparation, Zara expected to fail the test.
• D. Zara expected to fail the test without adequate preparation.

Correct answer: C

Rationale: Choice C, 'Without adequate preparation, Zara expected to fail the test,' is the best option as it maintains clarity and conciseness. The subject 'Zara' is directly linked to the action 'expected to fail the test' with the cause 'Without adequate preparation' clearly stated at the beginning. This structure enhances the flow of the sentence and makes it easier to understand. Choices A, B, and D are less clear as they place the cause and effect in less optimal positions, resulting in a less effective and concise expression of the idea.

3. What kind of error is present in the following sentence? 'This summer, I'm planning to travel to Italy, take a Mediterranean cruise, going to Pompeii, and eat a lot of Italian food.'

• A. Parallelism
• B. Sentence fragment
• C. Misplaced modifier
• D. Subject-verb agreement

Correct answer: A

Rationale: The sentence lacks parallel structure. The list of actions in the sentence should be presented in the same grammatical form. 'Travel to Italy,' 'take a Mediterranean cruise,' and 'go to Pompeii' should all be in the same form. To correct this, the sentence should be revised to: 'travel to Italy, take a Mediterranean cruise, visit Pompeii, and eat a lot of Italian food.' Choices B, C, and D are incorrect. The sentence is a complete sentence, not a fragment. There are no misplaced modifiers, and subject-verb agreement is not the issue in this sentence.

4. Which of the following is an example of the location and function of cartilage in the body?

• A. The dense connective tissue that makes up the majority of the structural skeleton
• B. The supportive pads that provide cushioning at joints, such as between the vertebrae of the spinal cord
• C. The connective structure made of fibrous collagen that connects muscles and bones
• D. The layer beneath the skin and on the outside of internal organs that provides cushioning and protection

Correct answer: B

Rationale: Cartilage is a type of flexible connective tissue that acts as supportive pads providing cushioning at joints, like those found between the vertebrae of the spine. This specific function of cartilage helps in reducing friction and absorbing shock in these areas, contributing to joint flexibility and protection. Choices A, C, and D do not accurately describe the function and location of cartilage in the body. Option A incorrectly refers to dense connective tissue, which is different from cartilage. Option C describes tendons or ligaments, which are not cartilage. Option D refers to adipose tissue, which is a type of connective tissue that stores fat and provides insulation, but it is not cartilage.

5. What is the difference between a pure substance and a mixture?

• A. Pure substances have a fixed composition, mixtures don't.
• B. Mixtures have a fixed composition, pure substances don't.
• C. Pure substances can be in any state, mixtures are not always solids.
• D. Pure substances are always elements, mixtures are always compounds.

Correct answer: A

Rationale: Pure substances have a definite and constant composition, meaning they are made up of only one type of atom or molecule with fixed proportions. This composition does not vary. On the other hand, mixtures are composed of two or more substances physically combined. The components of a mixture can be present in varying proportions, leading to a variable composition. Choice A is correct as it accurately distinguishes between pure substances and mixtures based on the fixed composition of pure substances and the variable composition of mixtures. Choice B is incorrect because mixtures, not pure substances, have variable compositions. Choice C is incorrect as both pure substances and mixtures can exist in different states. Choice D is incorrect because pure substances can be compounds as well, not exclusively elements, and mixtures can contain elements and compounds.

Similar Questions