ATI TEAS 7
Chemistry
1. What is the common name for the organic compound CH₃OH?
- A. Methane
- B. Ethanol
- C. Methanol
- D. Butanol
Correct answer: C
Rationale: CH₃OH is commonly known as methanol. The other choices represent different organic compounds.
2. Which hormone stimulates the release of pancreatic enzymes and bile?
- A. Gastrin
- B. Insulin
- C. Cholecystokinin (CCK)
- D. Glucagon
Correct answer: C
Rationale: The correct answer is C: Cholecystokinin (CCK). Cholecystokinin is a hormone produced by the small intestine in response to the presence of food, especially fats and proteins. It stimulates the release of pancreatic enzymes from the pancreas and bile from the gallbladder to aid in digestion. Gastrin is a hormone that stimulates the release of gastric acid in the stomach. Insulin and glucagon are hormones involved in regulating blood sugar levels, not the release of pancreatic enzymes and bile. Therefore, CCK is the hormone responsible for stimulating the release of pancreatic enzymes and bile in the digestive process.
3. How is power related to work and time?
- A. Power = Work ÷ Time
- B. Power = Work × Time
- C. Power = Work + Time
- D. Power = Work - Time
Correct answer: a
Rationale: Power is calculated as the amount of work done or energy transferred per unit of time.
4. What is the name for the flexible connection between bones at the wrist or ankle?
- A. Ligament
- B. Tendon
- C. Fascia
- D. Synovial joint
Correct answer: A
Rationale: The correct answer is A: Ligament. Ligaments are fibrous connective tissues that connect bones to other bones, providing stability and support to joints. In the context of the wrist or ankle, ligaments play a crucial role in maintaining the structural integrity of these joints and preventing excessive movement that could lead to injury. Tendons (option B) connect muscles to bones, fascia (option C) is a connective tissue that surrounds muscles and other structures, and synovial joint (option D) refers to a type of joint that allows for movement. Therefore, the flexible connection between bones at the wrist or ankle is best described as a ligament.
5. What is the term for a solution that contains the maximum amount of solute that can dissolve at a specific temperature and pressure?
- A. Saturated solution
- B. Unsaturated solution
- C. Dilute solution
- D. Concentrated solution
Correct answer: A
Rationale: A saturated solution is one in which the maximum amount of solute has dissolved under specific conditions. The other choices do not accurately describe a saturated solution.
6. Which statement best summarizes the main argument of the passage?
- A. Smart cities are a revolutionary solution to all urban challenges.
- B. Technology alone can fix modern cities' problems.
- C. Smart cities offer potential but require careful consideration of data privacy and ethical implications.
- D. Traditional city planning methods are superior to implementing smart technology.
Correct answer: C
Rationale: The passage acknowledges both the potential and concerns surrounding smart cities, making it the most accurate summary.
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