Nursing Elites

1. Which of the following is an example of a secondary alcohol?

• A. Methanol
• B. Ethanol
• C. Isopropanol
• D. Butanol

Correct answer: C

Rationale: Isopropanol is an example of a secondary alcohol, as the hydroxyl group is attached to a carbon atom that is bonded to two other carbon atoms. The other choices are primary alcohols.

2. What is the net ionic equation for the reaction: 2HCl(aq) + Ba(OH)2(aq) → 2H2O(l) + BaCl2(aq)?

• A. 2H+(aq) + 2OH-(aq) → 2H2O(l)
• B. 2HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2H2O(l)
• C. 2H+(aq) + Ba2+(aq) → Ba2+(aq) + 2H+(aq)
• D. Ba(OH)2(aq) + HCl(aq) → BaCl2(aq) + 2H2O(l)

Correct answer: a

Rationale: The net ionic equation includes only the species that undergo a change during the reaction.

3. Bile, a digestive juice, is produced by which organ?

• A. Stomach
• B. Liver
• C. Pancreas
• D. Small intestine

Correct answer: B

Rationale: The correct answer is B: Liver. Bile is a digestive juice that is produced by the liver and stored in the gallbladder. It plays a crucial role in the digestion and absorption of fats in the small intestine. The stomach primarily produces gastric juices that aid in breaking down food, while the pancreas secretes digestive enzymes and bicarbonate into the small intestine. The small intestine is responsible for the absorption of nutrients. Therefore, the liver is the organ that produces bile, making it the correct answer to this question.

4. The word "obscurity" can be replaced with which of the following without changing the meaning?

• A. Prominence
• B. Seclusion
• C. Destruction
• D. Transformation

Correct answer: B

Rationale: Both "obscurity" and "seclusion" imply being hidden or unknown. Prominence, destruction, and transformation do not convey the same meaning.

5. Which organelle is responsible for cellular respiration, producing ATP for energy?

• A. Nucleus
• B. Mitochondria
• C. Golgi apparatus
• D. Vacuole

Correct answer: B

Rationale: The correct answer is B: Mitochondria. Mitochondria are known as the powerhouse of the cell because they are responsible for cellular respiration, a process that produces ATP (adenosine triphosphate) for energy. The other organelles listed, such as the nucleus, Golgi apparatus, and vacuole, do not play a direct role in cellular respiration or ATP production. The mitochondria contain specialized structures like cristae and enzymes that carry out the biochemical reactions of cellular respiration, making them essential for energy production in the cell.

6. Which of the following is NOT a major division of the nervous system?

• A. Peripheral nervous system
• B. Central nervous system
• C. Somatic nervous system
• D. Autonomic nervous system

Correct answer: C

Rationale: The somatic nervous system is actually a component of the peripheral nervous system, responsible for voluntary control of skeletal muscles and sensory information. The major divisions of the nervous system are the central nervous system (which includes the brain and spinal cord) and the peripheral nervous system (which includes all nerves outside the central nervous system). The autonomic nervous system, on the other hand, is a division of the peripheral nervous system responsible for involuntary functions like heart rate and digestion. Therefore, the correct answer is C, the somatic nervous system, as it is not a major division of the nervous system.

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