ATI TEAS 7
Chemistry
1. Which of the following is an example of a salt?
- A. Sodium hydroxide (NaOH)
- B. Hydrochloric acid (HCl)
- C. Sodium chloride (NaCl)
- D. Sulfuric acid (Hâ‚‚SOâ‚„)
Correct answer: c
Rationale: Sodium chloride is an example of a salt. The other choices are either bases or acids.
2. Which blood vessels carry oxygenated blood from the heart to the rest of the body?
- A. Pulmonary arteries
- B. Pulmonary veins
- C. Systemic arteries
- D. Systemic veins
Correct answer: C
Rationale: The correct answer is C: Systemic arteries. Systemic arteries carry oxygenated blood from the heart to the rest of the body, delivering vital nutrients and oxygen to tissues and organs. Pulmonary arteries carry deoxygenated blood from the heart to the lungs for oxygenation. Pulmonary veins carry oxygenated blood from the lungs back to the heart. Systemic veins return deoxygenated blood from the body to the heart. It's important to differentiate between pulmonary and systemic vessels in understanding the circulation of blood throughout the body.
3. What can be inferred about the data collected by smart cities?
- A. It is easily accessible and transparent to the public.
- B. It is solely used for optimizing infrastructure and services.
- C. It may raise privacy concerns for individual citizens.
- D. It is always accurate and free from technical errors.
Correct answer: C
Rationale: The passage specifically mentions concerns about data privacy, implying potential issues for individuals.
4. Stephanie is a new Staff Educator of a private tertiary hospital. She conducts orientation
- A. Organizational structure
- B. Policy
- C. Job description
- D. Manual of procedures
Correct answer: D
Rationale: The correct answer is D, 'Manual of procedures.' During orientation, Stephanie as a Staff Educator would likely refer to the manual of procedures to provide new employees with detailed instructions on how to perform their job duties. This manual outlines the specific procedures, protocols, and guidelines that employees are expected to follow within the organization. It serves as a valuable resource for new hires to understand the standard operating procedures and expectations within the hospital setting, making it a crucial document to reference during orientation.
5. What is the difference between a real image and a virtual image formed by a lens?
- A. Real images can be projected onto a screen, while virtual images cannot.
- B. Real images are always upright, while virtual images can be inverted.
- C. Real images are formed by converging lenses, while virtual images are formed by diverging lenses.
- D. All of the above are true.
Correct answer: A
Rationale: Real images are formed by the actual convergence of light rays and can be projected onto a screen, while virtual images are formed by the apparent divergence of light rays and cannot be projected.
6. Scientists compare the DNA of different organisms to understand evolutionary relationships. What is this type of evidence called?
- A. Morphological evidence (comparing body structures)
- B. Biochemical evidence (comparing molecules like proteins)
- C. Geographic distribution evidence (where organisms live)
- D. Genetic evidence (comparing DNA sequences)
Correct answer: D
Rationale: Rationale: A) Morphological evidence involves comparing body structures of organisms, which can provide information about evolutionary relationships based on physical similarities and differences. However, DNA comparison is a more direct and accurate method for understanding evolutionary relationships. B) Biochemical evidence involves comparing molecules like proteins, which can also provide insights into evolutionary relationships. However, DNA comparison is considered more reliable due to the direct relationship between DNA sequences and genetic information. C) Geographic distribution evidence refers to where organisms live and how their distribution may provide clues about evolutionary history. While this can be informative, it is not as direct or specific as comparing DNA sequences. D) Genetic evidence involves comparing DNA sequences of different organisms to understand their evolutionary relationships. DNA comparison is a powerful tool in evolutionary biology because it provides
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