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Nursing Elites

ATI TEAS 7

Scientific Reasoning

1. A blog post criticizes a scientific study due to the author's political views. Is this a valid critique?

Correct answer: C

Rationale: Criticism in science should focus on methodology, data analysis, and evidence, not personal agendas or political opinions.

2. Bone is a type of

Correct answer: C

Rationale: The correct answer is C: "Hard connective tissue." Bone is classified as hard connective tissue because it is composed of cells embedded in a matrix of mineralized collagen fibers, providing support and protection to the body. Epithelial tissue (A) covers body surfaces and lines cavities, while connective tissue (B) includes bone, cartilage, and blood. Muscle tissue (D) is responsible for movement and is not the same as bone tissue.

3. What property of a substance measures the amount of matter per unit volume?

Correct answer: c

Rationale: Density measures the amount of matter (mass) per unit volume of a substance.

4. Positron emission tomography (PET) scans utilize a key property of positrons for medical imaging. What is this property?

Correct answer: B

Rationale: The correct answer is B: 'Positive charge.' Positron emission tomography (PET) scans rely on the fact that positrons are positively charged particles. When a positron is emitted during radioactive decay, it quickly collides with an electron, resulting in annihilation and the release of two gamma rays in opposite directions. These gamma rays are detected by the PET scanner to create detailed images of the body's internal organs and tissues. The positive charge of positrons is crucial for this process to occur, making option B the correct choice.

5. What is the role of RNA in protein synthesis?

Correct answer: B

Rationale: Rationale: RNA plays a crucial role in protein synthesis by decoding the genetic information stored in DNA and carrying it to the ribosomes where proteins are synthesized. This process involves transcription, where RNA is synthesized from DNA, and translation, where the information in RNA is used to assemble amino acids into proteins. RNA acts as a messenger between DNA and the ribosomes, ensuring that the correct sequence of amino acids is used to build proteins according to the genetic code. Therefore, option B is the most appropriate choice as it accurately describes the role of RNA in protein synthesis.

6. Which of the following is an example of an aromatic hydrocarbon?

Correct answer: B

Rationale: Benzene is an example of an aromatic hydrocarbon. The other choices are aliphatic hydrocarbons.

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