ATI TEAS 7
Chemistry
1. Which element is a component of baking soda and is important for maintaining pH balance in the body?
- A. Potassium
- B. Sodium
- C. Calcium
- D. Sodium bicarbonate
Correct answer: D
Rationale: Sodium bicarbonate acts as a base and helps regulate pH in various biological systems
2. Regular exercise is beneficial for the muscular system by:
- A. Decreasing muscle mass
- B. Improving muscle strength and endurance
- C. Making muscles less flexible
- D. Increasing the risk of muscle tears
Correct answer: B
Rationale: The correct answer is B: 'Improving muscle strength and endurance.' Regular exercise is beneficial for the muscular system as it helps to strengthen muscles and increase endurance. By engaging in consistent physical activity, muscles adapt and grow stronger, which can enhance overall physical performance and reduce the risk of injury. Exercise also improves blood flow to the muscles, aiding in their recovery and growth. It does not decrease muscle mass (A), make muscles less flexible (C), or increase the risk of muscle tears (D), as long as proper form and gradual progression are followed.
3. Identify the predicate in the following sentence: "The children built a sandcastle on the beach."
- A. on the beach
- B. built a sandcastle
- C. children
- D. the
Correct answer: B
Rationale: The predicate is the verb and any words following it that describe the action or state of being of the subject.
4. The phrase "robust ethical frameworks" refers to
- A. Complex algorithms and mathematical models used in AI development.
- B. Comprehensive sets of guidelines and regulations governing AI development and deployment.
- C. Advanced hardware and software systems necessary for building powerful AI systems.
- D. Public education campaigns raising awareness about the potential benefits and risks of AI.
Correct answer: B
Rationale: Ethical frameworks are sets of principles and guidelines that ensure responsible AI development and address potential risks, aligning with B.
5. A patient's temperature is measured as 38.5 degrees Celsius. What is their temperature in Fahrenheit?
- A. 99.5 degrees Fahrenheit
- B. 101.3 degrees Fahrenheit
- C. 103.1 degrees Fahrenheit
- D. 104.9 degrees Fahrenheit
Correct answer: A
Rationale: Use the conversion formula: °F = (°C x 9/5) + 32. Substitute 38.5°C for °C and calculate: (38.5°C x 9/5) + 32 ≈ 99.5°F.
6. What is molarity a measure of in a solution?
- A. Volume of the solvent
- B. Amount of solute
- C. Concentration of solute
- D. Temperature of the solution
Correct answer: c
Rationale: Molarity (M) is a measure of the concentration of solute in a solution, expressed as moles of solute per liter of solution. The other choices do not accurately define molarity.
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