Nursing Elites

1. Which term describes a substance's ability to undergo a change that transforms it into a different substance?

• A. Density
• B. Mass
• C. Reactivity
• D. Volume

Correct answer: c

Rationale: Reactivity refers to a substance's ability to undergo a chemical change or reaction, transforming it into one or more different substances with new properties.

2. Which element shares the same group (family) on the periodic table with helium (He)?

• A. Neon (Ne)
• B. Boron (B)
• C. Carbon (C)
• D. Oxygen (O)

Correct answer: A

Rationale: Neon (Ne). Both He and Ne belong to Group 18 (Noble Gases) due to their complete and stable outer electron shells.

3. Which of the following is a functional group commonly found in alcohols?

• A. Carbonyl
• B. Hydroxyl
• C. Amine
• D. Ester

Correct answer: B

Rationale: The hydroxyl functional group (OH) is commonly found in alcohols. The other choices are associated with different functional groups.

4. Which respiratory structure is responsible for the humidification and warming of inhaled air?

• A. Trachea
• B. Larynx
• C. Nasal passages
• D. Bronchi

Correct answer: c

Rationale: The correct answer is C: Nasal passages. The nasal passages are lined with mucous membranes that produce mucus to humidify and warm the inhaled air before it reaches the lungs. This process helps to protect the delicate lung tissues from drying out and becoming irritated. The trachea, larynx, and bronchi play important roles in the respiratory system, but specifically, the nasal passages are primarily responsible for humidifying and warming the air as it enters the body.

5. Which property of a wave remains constant when it crosses a boundary between two different media?

• A. Frequency
• B. Wavelength
• C. Amplitude
• D. Speed

Correct answer: d

Rationale: The speed of a wave remains constant when it crosses a boundary between two different media, although its direction may change.

6. Regular exercise is beneficial for the muscular system by:

• A. Decreasing muscle mass
• B. Improving muscle strength and endurance
• C. Making muscles less flexible
• D. Increasing the risk of muscle tears

Correct answer: B

Rationale: The correct answer is B: 'Improving muscle strength and endurance.' Regular exercise is beneficial for the muscular system as it helps to strengthen muscles and increase endurance. By engaging in consistent physical activity, muscles adapt and grow stronger, which can enhance overall physical performance and reduce the risk of injury. Exercise also improves blood flow to the muscles, aiding in their recovery and growth. It does not decrease muscle mass (A), make muscles less flexible (C), or increase the risk of muscle tears (D), as long as proper form and gradual progression are followed.

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