Nursing Elites

1. What is the primary function of hematopoietic tissue?

• A. Building and repairing bone
• B. Supporting and connecting tissues
• C. Production of blood cells
• D. Contracting for movement

Correct answer: C

Rationale: The primary function of hematopoietic tissue is the production of blood cells. Hematopoietic tissue, primarily found in the bone marrow, is responsible for generating red blood cells, white blood cells, and platelets. These blood cells are vital for oxygen transport, immune response, and blood clotting. Choices A, B, and D are incorrect as they do not reflect the main function of hematopoietic tissue. Building and repairing bone is primarily carried out by osteoblasts and osteoclasts, supporting and connecting tissues is a role of connective tissues like tendons and ligaments, and contracting for movement is a function of muscle tissue.

2. Which metric prefix represents 10^-2?

• A. centi
• B. milli
• C. nano
• D. deci

Correct answer: A

Rationale: The metric prefix 'centi-' signifies 10^-2, denoting one-hundredth of a unit. For instance, 1 centimeter equals 0.01 of the base unit. Choice B, 'milli,' represents 10^-3, 'nano' in Choice C represents 10^-9, and 'deci' in Choice D stands for 10^-1. Therefore, the correct answer is 'centi.'

3. Which of the following structures is responsible for preventing the backflow of blood from the left ventricle into the left atrium?

• A. Aortic valve
• B. Pulmonary valve
• C. Tricuspid valve
• D. Mitral valve

Correct answer: D

Rationale: The correct answer is D, the Mitral valve. The mitral valve, also known as the bicuspid valve, is situated between the left atrium and the left ventricle. Its primary function is to prevent the backflow of blood from the left ventricle into the left atrium during ventricular contraction. The other choices are incorrect because: A) The aortic valve prevents backflow from the aorta into the left ventricle. B) The pulmonary valve prevents backflow from the pulmonary artery into the right ventricle. C) The tricuspid valve prevents backflow from the right ventricle into the right atrium.

4. The tone of a text is ____________ if the words say the opposite of what they really mean.

• A. ironic
• B. earnest
• C. confused
• D. unambiguous

Correct answer: A

Rationale: The correct answer is 'A: ironic.' In literature, irony is when there is a contrast between what is said and what is meant. It is a technique used to convey humor, sarcasm, or to emphasize a point indirectly. 'Earnest' (choice B) refers to being sincere or genuine, which is the opposite of what the question is describing. 'Confused' (choice C) does not accurately capture the concept of words saying the opposite of what they mean. 'Unambiguous' (choice D) means clear and not open to interpretation, which is the opposite of a situation where words have a hidden or opposite meaning.

5. Which of the following could be considered a theme of the passage?

• A. Anyone can become royalty.
• B. People should only marry for advantage.
• C. Queen Victoria was a fair, but unlikely, queen.
• D. Even the most unlikely events can happen.

Correct answer: D

Rationale: The theme of the passage revolves around the idea that even the most unlikely events can happen. The passage describes the improbable events leading to Queen Victoria becoming the queen, emphasizing how unpredictable and unexpected her rise to the throne was. Choice A is not supported as Victoria was born into royalty, so not just anyone can become royalty as implied. While there are mentions of marriages for advantage in the passage, it is not the central theme but rather a detail in the historical context, making choice B incorrect. Although the passage discusses Queen Victoria being an unlikely queen, this statement is too specific to be a theme; a theme should be broader and universally applicable, making choice C incorrect.

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