Nursing Elites

1. Immunoglobulin G (IgG) is the most abundant antibody type, responsible for:

• A. Immediate allergic reactions
• B. Neutralizing toxins and viruses
• C. Activating other immune cells
• D. Protecting newborns from infections

Correct answer: B

Rationale: Immunoglobulin G (IgG) is indeed the most prevalent antibody type in the blood and tissue fluids. Its primary functions include neutralizing toxins and viruses, promoting phagocytosis, and activating the complement system. IgG plays a crucial role in long-term immunity and provides passive immunity to newborns by crossing the placenta, safeguarding them from infections. Immediate allergic reactions are mainly mediated by IgE, not IgG. While IgM is known for activating other immune cells, IgG focuses on other key functions within the immune response, such as neutralizing pathogens and enhancing phagocytosis. Therefore, the correct answer is B, as IgG is primarily involved in neutralizing toxins and viruses, rather than the other options presented.

2. Ibexes are wild mountain goats that live in the Alps and the mountains of Asia. They climb very steep slopes. They are sure-footed and can easily leap from rock to rock. In winter, they replace their summer coat with thicker hair and a wooly undercoat.

• A. Ibexes are wild mountain goats that are very agile.
• B. Ibexes are found in lowlands and highlands.
• C. Ibexes like to climb steep slopes in the mountains.
• D. Ibexes have adapted to life in the mountains.

Correct answer: D

Rationale: The correct answer is 'Ibexes have adapted to life in the mountains' because it serves as a concluding sentence that summarizes the content of the paragraph. This statement encapsulates the information provided about ibexes living in the Alps and Asian mountains, climbing steep slopes, being sure-footed, and changing their coats in winter. Choice A is incorrect because the text does not specifically mention their agility. Choice B is incorrect as the text only mentions the Alps and Asian mountains, not lowlands. Choice C is also incorrect as the text mentions ibexes climbing steep slopes, not just liking to do so.

3. If a tree grows an average of 4.2 inches in a day, what is the rate of change in its height per month? Assume a month is 30 days.

• A. 0.14 inches per month
• B. 4.2 inches per month
• C. 34.2 inches per month
• D. 126 inches per month

Correct answer: D

Rationale: The tree grows at an average rate of 4.2 inches per day. To find the rate of change per month, multiply the daily growth rate by the number of days in a month (30 days): 4.2 inches/day × 30 days = 126 inches per month. Therefore, the rate of change in the tree's height is 126 inches per month, making option D the correct answer. Option A is incorrect because it miscalculates the rate based on daily growth. Option B is incorrect as it doesn't account for the total days in a month. Option C is incorrect as it overestimates the monthly growth rate.

4. Dendrites are finger-like extensions found on

• A. Muscle cells
• B. Connective tissue cells
• C. Neurons
• D. Epithelial cells

Correct answer: C

Rationale: Dendrites are the branched extensions of neurons that receive signals from other neurons and transmit those signals to the cell body. They play a crucial role in the communication process within the nervous system, allowing neurons to communicate with each other and integrate incoming signals to generate responses. The other choices are incorrect because dendrites specifically belong to neurons, not muscle cells, connective tissue cells, or epithelial cells.

5. Which of the following best describes the term monochromatic?

• A. having one color
• B. having many parts
• C. having a lot of time
• D. having too much heat

Correct answer: A

Rationale: The term 'monochromatic' refers to something that has only one color. Choice A, 'having one color,' is the correct description for monochromatic. Choices B, C, and D are incorrect as 'monochromatic' does not mean 'having many parts,' 'having a lot of time,' or 'having too much heat.' Monochromatic specifically conveys the idea of consisting of or using only one color, making Choice A the correct answer.

Similar Questions