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 part of speech is the underlined word in the sentence "The students eagerly awaited the results"?

• A. Verb
• B. Noun
• C. Adjective
• D. Adverb

Correct answer: B

Rationale: Option B identifies "results" as the direct object of the verb "awaited," making it a noun.

3. Which part of the brain plays a crucial role in the regulation of balance, coordination, and posture?

• A. Thalamus
• B. Cerebrum
• C. Cerebellum
• D. Hypothalamus

Correct answer: c

Rationale: The correct answer is the cerebellum (Option C). The cerebellum is responsible for the regulation of balance, coordination, and posture in the body. It receives information from sensory systems, the spinal cord, and other parts of the brain to coordinate voluntary movements. The thalamus (Option A) is involved in relaying sensory and motor signals to the cerebral cortex, but not specifically in balance and coordination. The cerebrum (Option B) is the largest part of the brain and is responsible for higher brain functions such as thinking and problem-solving. The hypothalamus (Option D) plays a role in regulating basic functions like hunger, thirst, and body temperature, but not balance, coordination, and posture. Therefore, the cerebellum is the key area of the brain involved in these specific functions.

4. Define "friction" in terms of opposing motion.

• A. A force that increases motion
• B. A force that accelerates motion
• C. A force that opposes motion
• D. A force that creates motion

Correct answer: c

Rationale: Friction acts opposite to the direction of motion, resisting or slowing down the movement of objects.

5. Which of the following is a balanced chemical equation?

• A. H2 + O2 → H2O
• B. 2H2 + O2 → 2H2O
• C. 3H2O → 2H2 + O2
• D. H2O → H2 + O2

Correct answer: b

Rationale: The equation is balanced, with equal numbers of atoms of each element on both sides.

6. What is the function of the pericardium, the sac surrounding the heart?

• A. o generate electrical impulses for heart contraction
• B. To transport blood throughout the body
• C. To provide lubrication for heart movement
• D. To protect the heart and anchor it in place

Correct answer: D

Rationale: The pericardium, the sac surrounding the heart, serves primarily to protect the heart and anchor it in place. It acts as a protective barrier against external infections or damage and helps to maintain the heart's position within the chest cavity. Additionally, the pericardium also provides some degree of shock absorption to minimize physical trauma to the heart. While the heart's electrical impulses for contraction originate from within the heart itself and are not generated by the pericardium, it does not play a role in directly generating these impulses. Therefore, option D, 'To protect the heart and anchor it in place,' is the correct function of the pericardium.

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