ATI TEAS 7
Biology
1. What are the four main types of macromolecules that are essential for life?
- A. Carbohydrates, lipids, proteins, and nucleic acids
- B. Carbohydrates, proteins, fats, and vitamins
- C. Minerals, vitamins, proteins, and fats
- D. Carbohydrates, lipids, proteins, and hormones
Correct answer: A
Rationale: These four types of macromolecules are the building blocks of life and play essential roles in various cellular processes. Carbohydrates: Carbohydrates are the primary energy source for cells and provide structural support for cell membranes and other cellular components. They are composed of carbon, hydrogen, and oxygen atoms and are classified into monosaccharides (simple sugars), disaccharides (double sugars), and polysaccharides (complex sugars). Lipids: Lipids are a diverse group of molecules that include fats, oils, and waxes. They are composed of carbon, hydrogen, and oxygen atoms and are insoluble in water but soluble in nonpolar solvents. Lipids serve as energy storage molecules, provide insulation for cells and organs, and are essential components of cell membranes. Proteins: Proteins are complex molecules composed of amino acids linked together by peptide bonds. They are responsible for a vast array of cellular functions, including structural support, enzymatic catalysis,
2. He asserts the importance of promoting a positive organizational culture in their unit. Which
- A. Proactive and caring with one another
- B. Competitive and perfectionist
- C. Powerful and oppositional
- D. Obedient and uncomplaining
Correct answer: A
Rationale: The correct answer is A: 'Proactive and caring with one another.' When promoting a positive organizational culture, it is essential to foster a supportive environment where individuals are proactive in their approach and demonstrate care towards one another. This type of culture encourages collaboration, open communication, and empathy among team members, leading to higher levels of job satisfaction and overall performance. Being competitive and perfectionist (option B) can create a stressful and unhealthy work environment, while being powerful and oppositional (option C) or obedient and uncomplaining (option D) can stifle creativity and innovation. Therefore, the most suitable traits for promoting a positive organizational culture are being proactive and caring with one another.
3. Which of the following best describes a balanced force acting on an object?
- A. The object remains at rest
- B. The object moves with constant velocity
- C. The object accelerates
- D. The object's mass changes
Correct answer: b
Rationale: When balanced forces act on an object, the object remains in a state of constant velocity (including at rest).
4. The main purpose of using strong vocabulary in your writing is to:
- A. Impress the reader with your knowledge of complex words.
- B. Confuse the reader and make them think harder.
- C. Communicate your ideas clearly and precisely.
- D. Shorten your sentences and save space.
Correct answer: C
Rationale: While using complex vocabulary can showcase knowledge, the primary goal is to ensure the reader understands your message. Precise words eliminate confusion and ambiguity.
5. What is the relationship between mass and inertia?
- A. Mass is a measure of inertia
- B. Mass has no relation to inertia
- C. Inertia is a measure of weight
- D. Inertia increases with decreasing mass
Correct answer: a
Rationale: Mass is a measure of the amount of matter in an object and is directly related to its inertia.
6. Which term describes a substance's ability to undergo a change that transforms it into a different substance?
- A. Density
- B. Mass
- C. Reactivity
- D. Volume
Correct answer: c
Rationale: Reactivity refers to a substance's ability to undergo a chemical change or reaction, transforming it into one or more different substances with new properties.
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