Nursing Elites

1. Which of the following describes the path through which air moves during inhalation?

• A. mouth/nose > pharynx > larynx > trachea > bronchi > bronchioles > alveoli
• B. bronchioles > alveoli > bronchi > larynx > pharynx > lungs
• C. mouth/nose > bronchi > bronchioles > alveoli > lungs > trachea
• D. alveoli > bronchioles > lungs > bronchi > trachea > larynx > pharynx > mouth/nose

Correct answer: A

Rationale: The correct path through which air moves during inhalation is from the mouth/nose > pharynx > larynx > trachea > bronchi > bronchioles > alveoli. This sequence accurately represents the typical route air takes as it travels from the external environment into the lungs to facilitate gas exchange in the alveoli. Choice B is incorrect as it reverses the order of bronchioles and alveoli. Choice C is incorrect as it starts with mouth/nose but then incorrectly lists lungs before trachea. Choice D is incorrect as it reverses the entire sequence of the respiratory pathway, starting with alveoli instead of mouth/nose.

2. Where does the nerve impulses send neurotransmitters across a synapse to a muscle cell to stimulate muscle contraction?

• A. sarcomere
• B. tendon
• C. myelin sheath
• D. neuromuscular junction

Correct answer: D

Rationale: The neuromuscular junction is the specific area where nerve impulses trigger the release of neurotransmitters that cross the synaptic gap to bind to receptors on the muscle cell membrane. This binding initiates muscle contraction by stimulating the muscle cell. The sarcomere is the basic contractile unit in a muscle fiber, not the location where nerve impulses communicate with muscle cells. Tendons are connective tissues that attach muscles to bones and are not involved in transmitting nerve impulses. The myelin sheath is a protective covering around nerve fibers but is not directly involved in transmitting neurotransmitters to muscle cells for muscle contraction.

3. Which of the following sentences uses figurative language?

• A. The scientist conducted an experiment.
• B. The child ran like a cheetah.
• C. The book contained many pages.
• D. The teacher explained the concept clearly.

Correct answer: B

Rationale: Choice B is the correct answer as it uses a simile, comparing the child's speed to that of a cheetah. Figurative language uses words or expressions with a meaning that is different from the literal interpretation, making the sentence more vivid and imaginative. In this case, the simile enhances the description of the child's speed by likening it to the swift and agile movement of a cheetah. Choices A, C, and D do not use figurative language. Option A is a straightforward statement about a scientist conducting an experiment without any figurative elements. Option C is a factual statement about a book having many pages without any figurative language. Option D is a clear explanation by a teacher without any figurative language present.

4. Which of the following is a correct thesis statement?

• A. President Perez pledged to improve living conditions for all during her well-attended inauguration speech, which drew thunderous applause.
• B. President Perez graduated first in her class at Harvard University after defending a capstone project on inequality.
• C. President Perez is our greatest leader because her proposal of a universal income will eradicate inequity among citizens.
• D. President Perez was interviewed on television in February, where she spoke without commercial interruption for 1 hour.

Correct answer: C

Rationale: Choice C is the correct thesis statement because it presents a clear argument or claim, making it a strong thesis statement. The thesis statement asserts President Perez as the greatest leader based on her proposal of a universal income to eradicate inequity among citizens. This statement sets a specific focus and direction for the essay or discussion that follows. Choices A, B, and D do not function as thesis statements. Choice A provides a descriptive event but lacks a clear argument. Choice B highlights an achievement but does not establish a central claim. Choice D mentions an interview but does not present a focused argument as required in a thesis statement.

5. 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.

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