ATI TEAS 7
Biology
1. What is the recommended daily fiber intake for adults?
- A. 10 grams
- B. 25 grams
- C. 35 grams
- D. 50 grams
Correct answer: B
Rationale: Rationale: The recommended daily fiber intake for adults is around 25 grams for women and 38 grams for men. Fiber is essential for maintaining a healthy digestive system, preventing constipation, and reducing the risk of chronic diseases such as heart disease and diabetes. Consuming an adequate amount of fiber can also help with weight management and promote overall well-being. Therefore, option B is the most appropriate answer based on the recommended daily intake guidelines for adults.
2. Describe the ethical considerations surrounding the potential use of CRISPR-Cas9 technology in humans.
- A. Concerns about unintended consequences on the genome and potential off-target effects.
- B. Debates on modifying the human germline and potential eugenic implications.
- C. Accessibility and affordability of the technology, ensuring equitable access to benefits.
- D. Risks associated with CRISPR-Cas9 editing germline cells and potential long-term impacts.
Correct answer: B
Rationale: CRISPR-Cas9's ability to precisely edit germline cells raises ethical dilemmas about modifying the human gene pool. This includes concerns about eugenics, unintended consequences, and the long-term impact on future generations.
3. What is the acceleration of an object moving at a constant speed of 20 m/s if it comes to a complete stop within 5 seconds?
- A. 0 m/s² (no acceleration)
- B. 4 m/s²
- C. -4 m/s²
- D. Information insufficient
Correct answer: C
Rationale: The acceleration can be calculated using the formula: acceleration = (final velocity - initial velocity) / time. In this case, the final velocity is 0 m/s (as the object comes to a complete stop), the initial velocity is 20 m/s, and the time taken is 5 seconds. Plugging these values into the formula, we get acceleration = (0 m/s - 20 m/s) / 5 s = -20 m/s / 5 s = -4 m/s². Therefore, the acceleration is -4 m/s².
4. How many moles of water are produced when 0.5 moles of methane (CH4) react with excess oxygen?
- A. 0.5 moles
- B. 1 mole
- C. 2 moles
- D. 3 moles
Correct answer: c
Rationale: The balanced equation is CH4 + 2O2 → CO2 + 2H2O, indicating a 1:2 ratio between CH4 and H2O.
5. Which organ produces insulin?
- A. Pancreas
- B. Liver
- C. Stomach
- D. Kidneys
Correct answer: A
Rationale: Rationale: Insulin is a hormone that regulates blood sugar levels by facilitating the uptake of glucose into cells for energy production or storage. The pancreas is an organ located behind the stomach that plays a crucial role in producing insulin. Specialized cells within the pancreas, called beta cells, are responsible for synthesizing and secreting insulin in response to changes in blood glucose levels. Therefore, the pancreas is the organ that produces insulin.
6. A bar graph shows the number of patients admitted to the ER each day for a week. How do you determine the day with the highest number of admissions?
- A. Find the tallest bar in the graph.
- B. Compare the heights of all bars.
- C. Calculate the average number of admissions per day.
- D. Subtract the lowest number of admissions from the highest.
Correct answer: A
Rationale: The best approach is to find the tallest bar
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