ATI TEAS 7
Chemistry
1. What is the term for the chemical reaction that involves the loss of electrons?
- A. Reduction
- B. Oxidation
- C. Neutralization
- D. Precipitation
Correct answer: b
Rationale: Oxidation is the chemical reaction that involves the loss of electrons. The other choices describe different types of reactions.
2. What is the term for the particles moving around within a substance?
- A. Ions
- B. Atoms
- C. Molecules
- D. Kinetic energy
Correct answer: C
Rationale: In most cases, the particles moving within a substance are individual molecules or atoms, depending on the state of matter.
3. Which type of energy is possessed by an object in motion?
- A. Potential energy
- B. Kinetic energy
- C. Thermal energy
- D. Chemical energy
Correct answer: b
Rationale: Kinetic energy is the energy possessed by an object in motion.
4. Which adjective best describes the following setting: "A lone cabin stood nestled amongst towering pines, smoke curling from its chimney into the crisp mountain air."
- A. Bland
- B. Urban
- C. Idyllic
- D. Sterile
Correct answer: C
Rationale: "Idyllic" captures the peaceful and picturesque nature of the setting.
5. Vacuoles are large sacs for storage in plant cells. What is their main function in animal cells?
- A. Protein synthesis
- B. Waste storage and disposal
- C. Photosynthesis
- D. Cellular respiration
Correct answer: B
Rationale: Vacuoles in plant cells are primarily used for storage of water, nutrients, and waste products. In animal cells, vacuoles are smaller and serve various functions, including waste storage and disposal. Option B, 'Waste storage and disposal,' is the correct answer because vacuoles in animal cells help maintain cellular homeostasis by storing and breaking down waste materials. This process aids in detoxification and maintaining proper cellular function in animal cells, similar to the role of vacuoles in plant cells.
6. How does an increase in mass affect the force required to produce the same acceleration on an object?
- A. Increases force required
- B. Decreases force required
- C. Has no effect on force required
- D. Causes unpredictable changes in force required
Correct answer: a
Rationale: With an increase in mass, more force is needed to produce the same acceleration due to inertia.
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