ATI TEAS 7
Chemistry
1. What is the term for a solution that has exactly the same concentration of solute as another solution?
- A. Saturated solution
- B. Unsaturated solution
- C. Isotonic solution
- D. Concentrated solution
Correct answer: c
Rationale: An isotonic solution has the same concentration of solute as another solution. The other choices do not accurately describe an isotonic solution.
2. Which property of a substance refers to its ability to be stretched into thin wires without breaking?
- A. Conductivity
- B. Viscosity
- C. Ductility
- D. Malleability
Correct answer: c
Rationale: Ductility is the property that describes a substance's ability to be stretched into thin wires without breaking.
3. The term "unconditional" in the context of UBI signifies that
- A. The amount received would be based on individual income and living expenses.
- B. Recipients would be required to meet certain criteria to qualify for the program.
- C. The money would be provided without any restrictions on how it is spent.
- D. The program would be temporary and subject to periodic review and renewal.
Correct answer: C
Rationale: The unconditional aspect of UBI refers to the lack of strings attached to its receipt, aligning with C.
4. What is the neurotransmitter involved in muscle movement?
- A. Dopamine
- B. Acetylcholine
- C. Serotonin
- D. GABA
Correct answer: B
Rationale: The correct answer is B: Acetylcholine. Acetylcholine is the neurotransmitter involved in muscle movement. It is released by motor neurons at the neuromuscular junction to stimulate muscle contraction. Dopamine is involved in reward and pleasure pathways in the brain, serotonin plays a role in mood regulation, and GABA is an inhibitory neurotransmitter that helps to reduce neural activity. Understanding the specific roles of neurotransmitters is crucial in grasping their functions in the nervous system.
5. Identify the noun clause in the sentence: "My biggest fear is that I wouldn't live life to the fullest."
- A. "My biggest fear"
- B. "that I wouldn't live life to the fullest"
- C. "life"
- D. "the fullest"
Correct answer: B
Rationale: Option B functions as the object of the verb "is," making it a noun clause.
6. The tonsils and adenoids, located in the throat, are part of the:
- A. Lymphatic system
- B. Endocrine system
- C. Respiratory system
- D. Digestive system
Correct answer: A
Rationale: The correct answer is A: "Lymphatic system." The tonsils and adenoids are part of the lymphatic system, which plays a crucial role in the body's immune response. These tissues help trap and fight off bacteria and viruses that enter the body through the mouth and nose. The lymphatic system is responsible for producing white blood cells and antibodies that help protect the body from infections. Therefore, the tonsils and adenoids are essential components of the lymphatic system, not the endocrine, respiratory, or digestive systems.
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