ATI TEAS 7
Chemistry
1. In a chemical reaction, the total amount of:
- A. Matter remains the same
- B. Matter increases
- C. Matter decreases
- D. Energy remains the same
Correct answer: A
Rationale: The Law of Conservation of Mass states that matter cannot be created or destroyed in a chemical reaction, only rearranged
2. You need to fill a rectangular swimming pool with dimensions 10 meters by 5 meters and a depth of 2 meters. How many cubic meters of water does it take to fill the pool?
- A. 50 cu m
- B. 100 cu m
- C. 150 cu m
- D. 200 cu m
Correct answer: C
Rationale: Simply multiply the pool's dimensions to find its volume.
3. Which of the following statements about fungi is FALSE?
- A. They can be unicellular or multicellular
- B. They are all parasitic and cause disease in humans
- C. They play a vital role in decomposition and nutrient cycling
- D. Some are used in food production, like mushrooms
Correct answer: B
Rationale: Rationale: A) This statement is true. Fungi can exist in both unicellular (yeast) and multicellular (molds and mushrooms) forms. B) This statement is false. While some fungi can be parasitic and cause diseases in humans, not all fungi exhibit this behavior. Many fungi are beneficial and play essential roles in ecosystems. C) This statement is true. Fungi are crucial for decomposition and nutrient cycling in ecosystems. They break down organic matter and recycle nutrients back into the environment. D) This statement is true. Some fungi, like mushrooms, are used in food production and are consumed by humans.
4. 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.
5. Which phrase best describes the tone of the passage?
- A. Humorous and lighthearted
- B. Suspenseful and mysterious
- C. Objective and informative
- D. Critical and judgmental
Correct answer: C
Rationale: The passage presents factual information without injecting personal opinions or emotions. A, B, and D suggest tones not present in the passage's neutral delivery.
6. What is the name of the curved bone in the back that provides support and attachment for muscles?
- A. Sternum
- B. Scapula
- C. Clavicle
- D. Vertebral column
Correct answer: D
Rationale: The correct answer is D: Vertebral column. The vertebral column, also known as the spine or backbone, is a series of small bones called vertebrae that provide support and protection for the spinal cord. It also serves as an attachment point for various muscles in the back. The sternum, scapula, and clavicle are all bones in the upper body, but they do not specifically provide support and attachment for muscles in the back like the vertebral column does.
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