ATI TEAS 7
Chemistry
1. Elements tend to gain or lose electrons to achieve stable electron configurations like those of noble gases. Their group number often indicates the number of electrons gained/lost and the resulting ionic charge, providing a good starting point for prediction.
- A. Ionic bonds involve electron sharing, while metallic bonds involve electron transfer
- B. Ionic bonds are weak and directional, while metallic bonds are strong and non-directional
- C. Ionic bonds exist between metals and non-metals, while metallic bonds exist only between metals
- D. Ionic bonds form discrete molecules, while metallic bonds form extended structures
Correct answer: D
Rationale: Ionic bonds involve complete electron transfer between atoms, creating strong, non-directional electrostatic attraction. Metallic bonds involve a delocalized "sea" of electrons shared across all metal atoms, resulting in a strong, extended structure.
2. When she presents the nursing procedures to be followed, she refers to what type of
- A. Process
- B. Outcome
- C. Structure
- D. Criteria
Correct answer: D
Rationale: In this scenario, the person is referring to the specific standards or benchmarks that must be met when presenting nursing procedures, which aligns with the definition of 'criteria'. Criteria are the established principles or requirements that serve as a reference point for evaluation or judgment. It is essential for healthcare professionals to adhere to specific criteria when performing procedures to ensure quality care. The other options, such as 'process', 'outcome', and 'structure', do not directly relate to the standards or benchmarks being referenced in this context.
3. Which word best synonyms with the word "elated"?
- A. Angry
- B. Sad
- C. Excited
- D. Confused
Correct answer: C
Rationale: "Elated" and "excited" both convey feelings of happiness and enthusiasm.
4. B cells in the immune system are responsible for:
- A. Directly attacking and engulfing pathogens
- B. Producing antibodies specific to a pathogen
- C. Destroying infected body cells
- D. All of the above
Correct answer: B
Rationale: B cells in the immune system are responsible for producing antibodies specific to a pathogen. This is because B cells are a type of white blood cell that play a crucial role in the adaptive immune response. When a B cell encounters a specific pathogen, it differentiates into plasma cells that produce antibodies targeted against that particular pathogen. These antibodies then tag the pathogen for destruction by other immune cells. B cells do not directly attack and engulf pathogens like phagocytes, nor do they destroy infected body cells like cytotoxic T cells. Therefore, option B is the correct answer as it accurately reflects the primary function of B cells in the immune system.
5. What type of force allows a car to take a sharp turn while moving in a circular path?
- A. Centripetal force
- B. Tension force
- C. Frictional force
- D. Gravitational force
Correct answer: A
Rationale: Centripetal force is the force that allows an object to move in a circular path. In the case of a car taking a sharp turn, the centripetal force is directed towards the center of the circle, keeping the car moving in a curved path. Tension force is the force transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends. Frictional force opposes the motion of an object and is not the primary force responsible for allowing a car to take a sharp turn. Gravitational force is the force of attraction between two masses and is not directly related to a car taking a sharp turn.
6. Which additional information would be MOST relevant to the topic of the passage?
- A. A detailed history of the development of specific social media platforms.
- B. Studies on the psychological effects of prolonged social media use on teenagers.
- C. Statistics on the global economic impact of the social media industry.
- D. Technical explanations of the algorithms used by social media platforms.
Correct answer: B
Rationale: Studies on the psychological effects of social media use directly relate to the passage's concerns about mental health impacts, making it the most relevant information.
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