ATI TEAS 7
Anatomy
1. The primary function of the respiratory system is to:
- A. Maintain body temperature
- B. Deliver oxygen to the bloodstream and remove carbon dioxide
- C. Produce antibodies for the immune system
- D. Break down food molecules for energy
Correct answer: B
Rationale: The correct answer is B: 'Deliver oxygen to the bloodstream and remove carbon dioxide.' The primary function of the respiratory system is to facilitate gas exchange. When we breathe in, oxygen is inhaled and transported to the bloodstream, where it is delivered to cells for energy production. Simultaneously, carbon dioxide, a waste product of cellular metabolism, is removed from the bloodstream and exhaled. This process is vital for sustaining life and maintaining proper oxygen levels in the body. The respiratory system does not primarily regulate body temperature, produce antibodies, or break down food molecules for energy, making options A, C, and D incorrect.
2. What figure of speech is used in the statement "His words were a dagger to my heart"?
- A. Metonymy
- B. Simile
- C. Metaphor (Correct)
- D. Hyperbole
Correct answer: C
Rationale: The statement compares the pain of his words to a physical object, forming a metaphor.
3. Which of the following is NOT a state of matter?
- A. Solid
- B. Liquid
- C. Gas
- D. Superfluid
Correct answer: D
Rationale: While superfluids exhibit some liquid-like properties, they are a distinct state of matter with unique characteristics beyond the traditional solid, liquid, gas, and plasma classifications.
4. In a neutral atom, the number of electrons:
- A. Must be equal to the number of protons.
- B. Must be less than the number of protons.
- C. Must be greater than the number of neutrons.
- D. Can vary depending on the atom's temperature.
Correct answer: A
Rationale: Must be equal to the number of protons - For electrical neutrality, the positive charge of protons must be balanced by the negative charge of an equal number of electrons.
5. What happens to the internal energy of a system when it performs work on its surroundings?
- A. It increases.
- B. It decreases.
- C. It remains the same.
- D. Information insufficient
Correct answer: B
Rationale: When a system performs work on its surroundings, it loses internal energy in accordance with the first law of thermodynamics.
6. Which word best completes the sentence: "The scientist conducted the experiment with _____ precision."
- A. extreme
- B. great
- C. utter
- D. remarkable
Correct answer: C
Rationale: Option C emphasizes the absolute and complete accuracy of the experiment.
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