ATI TEAS 7
physics
1. What happens to the density of a substance if its mass increases while its volume remains constant?
- A. Density increases
- B. Density decreases
- C. Density remains constant
- D. Density becomes zero
Correct answer: a
Rationale: Density is the ratio of mass to volume. If the mass increases while the volume remains constant, the density will increase as there is more mass in the same volume.
2. Which sentence avoids a dangling modifier?
- A. Walking down the street, a bird swooped down from a tree.
- B. Having finished the report, it was time for lunch.
- C. Reading the book, I learned a lot about ancient history.
- D. Exhausted from the hike, the tent was a welcome sight.
Correct answer: C
Rationale: Option C places the participle phrase "Reading the book" in front of the subject "I," eliminating the dangling modifier.
3. What is the name for the mixture of reactants and products present during a chemical reaction?
- A. Solution
- B. Mixture
- C. Reaction mixture
- D. Precipitate
Correct answer: C
Rationale: This mixture contains both the starting materials (reactants) and the newly formed substances (products) during the reaction process.
4. The athlete ran the race in record time. Which word is the present participle of the verb "run"?
- A. ran
- B. runs
- C. running
- D. runner
Correct answer: C
Rationale: The present participle form of a verb describes an ongoing action.
5. The phrase "green alternative" suggests that bioremediation is...
- A. The most economical option for plastic cleanup.
- B. Faster and more efficient than traditional methods.
- C. Environmentally friendly and less harmful than other solutions.
- D. More aesthetically pleasing than existing approaches.
Correct answer: C
Rationale: The passage contrasts bioremediation with "traditional methods," explicitly linking it to being environmentally friendly.
6. Which of the following is NOT a function of the endoplasmic reticulum (ER)?
- A. Synthesis of lipids (fats)
- B. Transport of materials within the cell
- C. Detoxification of harmful substances
- D. Breakdown of cellular waste products
Correct answer: C
Rationale: The correct answer is C: 'Detoxification of harmful substances.' The endoplasmic reticulum (ER) is responsible for synthesizing lipids (fats), transporting materials within the cell, and breaking down cellular waste products. However, detoxification of harmful substances is primarily carried out by the smooth endoplasmic reticulum (SER) where enzymes detoxify drugs and other harmful compounds. Therefore, C is the correct answer as it is not a primary function of the ER.
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