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Nursing Elites

ATI TEAS 7

English Grammar

1. Which sentence uses parentheses correctly?

Correct answer: B

Rationale: Parentheses are used for non-essential information that clarifies or adds detail. Option (a) is unnecessary and disrupts the flow of the sentence.

2. Which type of white blood cell directly attacks and destroys pathogens like bacteria and viruses?

Correct answer: A

Rationale: The correct answer is A: Neutrophils. Neutrophils are a type of white blood cell that plays a crucial role in the innate immune response by directly attacking and destroying pathogens like bacteria and viruses. They are the most abundant type of white blood cell and are known for their rapid response to infections. Neutrophils work by engulfing and digesting pathogens through a process called phagocytosis. Lymphocytes (option B) are involved in adaptive immunity, producing antibodies and coordinating immune responses. Monocytes (option C) differentiate into macrophages and dendritic cells, playing a role in phagocytosis and antigen presentation. Eosinophils (option D) are primarily involved in combating parasitic infections and allergic reactions, not directly attacking bacteria and viruses.

3. Which organelle is responsible for cellular respiration, producing ATP for energy?

Correct answer: B

Rationale: The correct answer is B: Mitochondria. Mitochondria are known as the powerhouse of the cell because they are responsible for cellular respiration, a process that produces ATP (adenosine triphosphate) for energy. The other organelles listed, such as the nucleus, Golgi apparatus, and vacuole, do not play a direct role in cellular respiration or ATP production. The mitochondria contain specialized structures like cristae and enzymes that carry out the biochemical reactions of cellular respiration, making them essential for energy production in the cell.

4. The important decision will be made tomorrow. Which word is the comparative form of the adjective "important"?

Correct answer: C

Rationale: The comparative form of an adjective compares two things.

5. What is the process by which damaged muscle tissue repairs and rebuilds itself?

Correct answer: B

Rationale: The correct answer is B: "Regeneration." Regeneration is the process by which damaged muscle tissue repairs and rebuilds itself by replacing the damaged cells with new, healthy cells. Degeneration refers to the deterioration of tissue, not the repair process. Hyperplasia is the increase in cell number, and metaplasia is the transformation of one cell type into another, neither of which directly relate to the repair process of damaged muscle tissue. Therefore, the most appropriate term for the described process is regeneration.

6. The fossil record shows that dinosaurs with feathers existed millions of years before birds. This is evidence for

Correct answer: A

Rationale: Rationale: The fossil record indicating that dinosaurs had feathers before birds suggests convergent evolution. Convergent evolution occurs when unrelated organisms independently evolve similar traits to adapt to similar environmental pressures. In this case, both dinosaurs and birds developed feathers for flight or insulation purposes, even though they are not closely related. This evidence supports the concept of convergent evolution rather than divergent evolution, coevolution, or the extinction of dinosaurs due to an asteroid impact.

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