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Nursing Elites

ATI TEAS 7

Biology

1. The body's first line of defense against pathogens includes:

Correct answer: A

Rationale: Rationale: Phagocytes are a type of white blood cell that plays a crucial role in the body's innate immune response, which is the first line of defense against pathogens. Phagocytes engulf and digest foreign particles, such as bacteria and viruses, helping to prevent infection and disease. Antibodies (option B) are produced by B cells and are part of the adaptive immune response, not the first line of defense. Memory B cells (option C) are also part of the adaptive immune response and are involved in mounting a faster and stronger response upon re-exposure to a pathogen. T lymphocytes (option D) are another type of white blood cell involved in the adaptive immune response, specifically in cell-mediated immunity.

2. Which sentence uses the word "literally" correctly?

Correct answer: B

Rationale: Option B uses "literally" to emphasize the magnitude of work, not to exaggerate a simple action.

3. Lymphedema, a chronic condition, occurs when:

Correct answer: B

Rationale: The correct answer is B: "Lymph vessels become blocked." Lymphedema is a chronic condition characterized by swelling due to the accumulation of lymph fluid. This occurs when lymph vessels become blocked, preventing the proper drainage of lymph fluid. Inflammation of lymph nodes (option A) is not the direct cause of lymphedema. The spleen malfunctioning (option C) and bone marrow production decreasing (option D) are not directly related to the development of lymphedema. Understanding the blockage of lymph vessels is crucial in comprehending the pathophysiology of lymphedema.

4. The term "bioaccumulate" refers to...

Correct answer: B

Rationale: The passage describes microplastics entering food chains and accumulating in organisms, aligning with bioaccumulation.

5. Which word is most closely associated with the adjective "ambiguous"?

Correct answer: B

Rationale: "Ambiguous" implies uncertainty or multiple interpretations, making "vague" its closest synonym.

6. A playground fence has a rectangular section (5m by 3m) attached to a semicircular section with a radius of 2m. What is the total perimeter?

Correct answer: D

Rationale: Calculate the semicircle perimeter (π * radius) and add it to the rectangular perimeter: perimeter = π * radius + 2 (length + width) ≈ 3.14 * 2m + 2 (5m + 3m) ≈ 6.28m + 16m ≈ 22.28m ≈ 22m (rounded).

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