HESI A2
Quizlet Vocabulary HESI A2
1. What is Diffusion?
- A. Movement of materials from low concentration to high concentration
- B. Movement of materials from high concentration to low concentration
- C. Absorption of nutrients
- D. Breaking of materials
Correct answer: B
Rationale: Diffusion is the process where substances move from an area of high concentration to an area of low concentration. This movement occurs due to the random motion of particles and continues until equilibrium is reached. Choice A is incorrect because diffusion occurs down the concentration gradient, from high to low concentration, not from low to high concentration. Choice C is incorrect as it refers to the uptake of substances by cells, not the general process of diffusion. Choice D is incorrect as it does not accurately describe the process of diffusion; diffusion involves the movement of substances, not the breaking of materials.
2. Choose the meaning of the word 'waft' in the following sentence: The steady breeze caused dry leaves to waft over the creek.
- A. Sink
- B. Dive
- C. Wave
- D. Float
Correct answer: D
Rationale: In this sentence, the word 'waft' is used to describe the movement of dry leaves over the creek in response to the steady breeze. 'Waft' means to float gently through the air. The correct meaning of 'waft' in this context is to float. Choices A, B, and C are incorrect because 'sink' means to go down below the surface of something, 'dive' means to plunge headfirst into water or another substance, and 'wave' means to move one's hand to and fro in greeting or as a signal.
3. Choose the meaning of the word progeny in the following sentence: 'This is a disease that is likely to recur in a patient’s progeny.'
- A. Chest
- B. Hormones
- C. Offspring
- D. Lifetime
Correct answer: C
Rationale: In the given sentence, the word 'progeny' means descendants or offspring. It refers to the children or future generations of the patient. Choice A, 'Chest,' is incorrect as it does not relate to the context of the sentence. Choice B, 'Hormones,' is also incorrect as it is not synonymous with 'progeny.' Choice D, 'Lifetime,' is unrelated to the concept of offspring, making it an incorrect choice.
4. The doctor said he wanted to try other things before attempting an __________ procedure.
- A. Internal
- B. Painful
- C. Experimental
- D. Expensive
Correct answer: C
Rationale: The term 'invasive' refers to a procedure that involves entering the body, usually with a medical instrument or device. In the context provided, the doctor wants to try other non-invasive or less invasive options before resorting to an invasive procedure. 'Experimental' means untested or not yet proven to be effective, which aligns with the idea of exploring alternative methods before considering a more invasive approach. Choices A, B, and D are incorrect because they do not relate to the context of trying alternative procedures that are different from invasive ones.
5. What is the best meaning of Pernicious?
- A. Harmless
- B. Destructive
- C. Helpful
- D. Harmful
Correct answer: B
Rationale: The correct answer is B, 'Destructive.' Pernicious is an adjective that describes something that is extremely harmful or destructive. Choice A, 'Harmless,' is the opposite of pernicious. Choice C, 'Helpful,' is a positive term and does not align with the meaning of pernicious. Choice D, 'Harmful,' is a similar term to pernicious but lacks the emphasis on the severe and damaging nature of the word.
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