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Nursing Elites

ATI TEAS 7

Chemistry

1. What are some potential applications of understanding atomic structure in modern technology?

Correct answer: D

Rationale: Understanding atomic structure is crucial in various technological advancements. Designing new materials with tailored properties requires knowledge of atomic structure to manipulate their characteristics. Developing advanced electronics and nanotechnology involves working at the atomic level to create smaller, faster, and more efficient devices. Improving nuclear energy production and safety also relies on understanding atomic structure to enhance reactor design and safety measures. Therefore, all of the options provided (A, B, and C) are potential applications of understanding atomic structure in modern technology.

2. A medication order is for 250 micrograms of a drug to be administered subcutaneously. The available syringe measures in milliliters. How many milliliters should the nurse draw up?

Correct answer: B

Rationale: First convert micrograms to milliliters, knowing 1000 micrograms equal 1 milliliter. Divide the desired dosage (250 micrograms) by the conversion factor (1000 micrograms/milliliter) to find the volume needed: 250 micrograms / 1000 micrograms/milliliter = 0.00025 milliliters. However, drawing such a small volume might be inaccurate, so round to the nearest practical measurement, which is 0.0025 milliliters.

3. Which sentence uses the correlative conjunction "either/or" correctly?

Correct answer: A

Rationale: Option Aa uses "either/or" to present two exclusive options.

4. Which type of waves exhibit both longitudinal and transverse motion?

Correct answer: b

Rationale: Surface waves, like those on water surfaces, exhibit both longitudinal and transverse motion.

5. 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.

6. How does an unbalanced force affect an object at rest?

Correct answer: c

Rationale: An unbalanced force acting on an object at rest causes it to start moving.

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