Nursing Elites

1. Assuming this statement is true, which of the answer choices is a logical conclusion?

• A. Whole language is more effective at teaching people to read than phonics.
• B. Phonics is more effective at teaching people to read than whole language.
• C. Literacy rates will probably continue to decline over the next 15 years.
• D. The definition of what it means to be literate is much stricter now.

Correct answer: B

Rationale: If we consider the information provided in the extract that literacy rates were higher when phonics was predominantly used and have declined since whole language programs became more popular, it logically follows that phonics is more effective at teaching people to read than whole language. Choice A is incorrect as the extract suggests the opposite. Choice C cannot be concluded based on the information provided; it is an assumption beyond the scope of the data. Choice D is also unrelated to the information given and does not logically follow from the provided statement.

2. What is the primary function of the endocrine system?

• A. To fight infection
• B. To transport oxygen
• C. To regulate body functions through hormones
• D. To break down food

Correct answer: C

Rationale: The correct answer is C: 'To regulate body functions through hormones.' The endocrine system is responsible for producing and secreting hormones that help regulate various body functions such as growth, metabolism, reproduction, and mood. It does not primarily function to fight infection (A), transport oxygen (B), or break down food (D). While the immune system fights infection, the respiratory system transports oxygen, and the digestive system breaks down food, the main role of the endocrine system is to maintain homeostasis by coordinating and controlling bodily functions through the release of hormones.

3. Which of the following prefixes means 'with'?

• A. bio-
• B. per-
• C. con-
• D. trans-

Correct answer: C

Rationale: The correct answer is C: 'con-'. The prefix 'con-' means 'with' or 'together,' as in words like 'convene' or 'connect.' Choice A, 'bio-', is a prefix that means 'life' or 'living organisms,' not 'with.' Choice B, 'per-', is a prefix that means 'through' or 'thoroughly,' not 'with.' Choice D, 'trans-', is a prefix that means 'across' or 'beyond,' not 'with.' Therefore, the correct choice that means 'with' is 'con-'.

4. What type of molecule forms the cell membrane and controls what enters and exits the cell?

• A. Proteins
• B. Carbohydrates
• C. Lipids
• D. Nucleic acids

Correct answer: C

Rationale: The cell membrane is primarily composed of lipids, specifically phospholipids, which form a lipid bilayer. This lipid bilayer controls what enters and exits the cell, providing a barrier that is selectively permeable. While proteins are also important components of the cell membrane and play various roles, lipids are the main structural component responsible for the membrane's permeability and function. Carbohydrates and nucleic acids are not the primary components of the cell membrane and do not have the same structural role as lipids.

5. What is the most powerful stimulus for breathing in a healthy person?

• A. Acidosis
• B. Alkalosis
• C. Increase in CO2
• D. Loss of O2

Correct answer: C

Rationale: The correct answer is an increase in CO2. In a healthy individual, the primary drive to breathe is regulated by the levels of carbon dioxide (CO2) in the blood. When CO2 levels increase, it triggers the body to increase the rate and depth of breathing to eliminate excess CO2 and restore the balance. This response is more powerful than other stimuli such as acidosis, alkalosis, or loss of oxygen. While acidosis and alkalosis can affect breathing, an increase in CO2 has a more direct and immediate impact. Loss of oxygen (hypoxia) is a potent stimulus, but the body's response to increased CO2 levels is generally more pronounced and immediate in healthy individuals.

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