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Nursing Elites

ATI TEAS 7

Physics

1. What is the difference between a real image and a virtual image formed by a lens?

Correct answer: A

Rationale: Real images are formed by the actual convergence of light rays and can be projected onto a screen, while virtual images are formed by the apparent divergence of light rays and cannot be projected.

2. What is the process of converting DNA into a protein called?

Correct answer: A

Rationale: Transcription is the process of converting DNA into a molecule called messenger RNA (mRNA). This mRNA molecule carries the genetic information from DNA to the ribosomes, where it is used to make proteins.

3. Which of the following best describes the function of the pericardium?

Correct answer: B

Rationale: The correct answer is B: "It acts as a protective sac surrounding the heart." The pericardium is a double-layered membrane that surrounds and protects the heart, providing physical support and preventing overexpansion. It also helps reduce friction between the heart and surrounding structures during heartbeats. Options A, C, and D are incorrect as they describe functions of other parts of the heart such as valves, electrical impulse generation, and transmission pathways, respectively. Understanding the role of the pericardium in protecting the heart is crucial for comprehending the anatomical and physiological aspects of the cardiovascular system.

4. Which word completes the sentence "He was ____ by the unexpected turn of events."

Correct answer: B

Rationale: "Bewildered" best describes the confusion caused by the unexpected events.

5. The muscular sac that stores urine until it is released from the body is called the:

Correct answer: B

Rationale: The correct answer is B: Bladder. The bladder is a muscular sac that stores urine until it is ready to be released from the body through the urethra. The urethra is the tube that carries urine from the bladder out of the body. Ureters are tubes that carry urine from the kidneys to the bladder. Nephrons are the functional units of the kidneys responsible for filtering the blood and producing urine. Therefore, the bladder is the specific organ responsible for storing urine until it is expelled from the body, making it the correct answer.

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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