Nursing Elites

1. What is the waste product of protein digestion?

• A. Glucose
• B. Amino acids
• C. Fatty acids
• D. Ammonia

Correct answer: D

Rationale: The waste product of protein digestion is ammonia. Protein digestion breaks down proteins into amino acids, and during this process, ammonia is produced. Ammonia is toxic and needs to be converted into urea in the liver for excretion via urine. Glucose is a product of carbohydrate digestion, amino acids are building blocks of proteins, and fatty acids are the end products of fat digestion. Therefore, the correct answer is ammonia.

2. How does water affect the temperature of a living thing?

• A. Water increases temperature.
• B. Water keeps temperature stable.
• C. Water decreases temperature.
• D. Water does not affect temperature.

Correct answer: B

Rationale: Water has a high specific heat capacity, which means it can absorb and release a large amount of heat energy without causing a significant change in temperature. This property allows water to help regulate the temperature of living things by buffering against sudden temperature changes in the environment. Overall, water helps to maintain a stable temperature within living organisms, which is crucial for their survival and physiological processes. Choices A, C, and D are incorrect because water's high specific heat capacity enables it to stabilize temperatures rather than increasing, decreasing, or having no effect on them.

3. Unlike the circulatory system, the lymphatic system does not have a pump. How does lymph move through the lymphatic vessels?

• A. By the pumping action of the heart
• B. Due to muscle contractions and breathing movements
• C. Through one-way valves within the vessels
• D. All of the above

Correct answer: C

Rationale: Lymph moves through the lymphatic vessels primarily due to muscle contractions and breathing movements and also with the help of one-way valves within the vessels. The lymphatic system lacks a central pump like the heart; hence, it relies on the contraction of surrounding muscles and breathing movements to propel lymph fluid. One-way valves within the lymphatic vessels prevent backflow and ensure the unidirectional flow of lymph. Option A is incorrect as the lymphatic system does not rely on the pumping action of the heart. Option D is incorrect as the correct answer is the combination of muscle contractions, breathing movements, and one-way valves, not all the options provided.

4. Julia Robinson, an avid photographer in her spare time, was able to capture stunning shots of the local wildlife on her last business trip to Australia. Which of the following is an adjective in the preceding sentence?

• A. Time
• B. Capture
• C. Avid
• D. Photographer

Correct answer: C

Rationale: The correct answer is 'C: Avid.' In the sentence, 'avid' describes Julia Robinson as someone who is enthusiastic and passionate about photography in her spare time. Adjectives are words that modify or describe nouns, and in this case, 'avid' modifies the noun 'photographer.' Choice A, 'Time,' is a noun and does not describe or modify any other word in the sentence. Choice B, 'Capture,' is a verb indicating an action taken by Julia Robinson. Choice D, 'Photographer,' is a noun identifying the role or occupation of Julia Robinson, not describing her in this context.

5. Which of the following is a primary source?

• A. A critic's summary of a book on Abraham Lincoln.
• B. A peer-reviewed scientific journal's table of contents.
• C. A gene splicing study report with data.
• D. A news article quoting research into curing cancer.

Correct answer: C

Rationale: The correct answer is C. A gene splicing study report with data is a primary source because it provides original research findings. In contrast, choice A is a secondary source as it involves a critic's interpretation of a book. Choice B, the table of contents of a peer-reviewed scientific journal, is not a primary source but a tertiary source, providing a summary of articles. Choice D, a news article quoting research, is a secondary source that presents information based on primary sources rather than the original research itself.

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