HESI A2
HESI A2 Vocabulary 2023
1. What is the meaning of superfluous?
- A. Maximum
- B. Excessive
- C. Insipid
- D. Soggy
Correct answer: B
Rationale: Superfluous means unnecessary or more than what is needed. It refers to something that is excessive or redundant. Choice B, "Excessive," is the correct synonym for superfluous. Choices A, C, and D are incorrect. "Maximum" (Choice A) means the greatest possible amount, "Insipid" (Choice C) means lacking flavor or interest, and "Soggy" (Choice D) means soaked with liquid or water.
2. In which state of matter are particles packed tightly together in a fixed position?
- A. Liquid
- B. Solid
- C. Gas
- D. Plasma
Correct answer: B
Rationale: In a 'solid' state, particles are tightly packed in fixed positions, maintaining a definite shape and volume. This arrangement allows solids to maintain a rigid structure. Liquids have particles that are close together but can move past each other, giving them the ability to flow and take the shape of their container. Gases have particles that are far apart and move freely, leading to their ability to expand to fill any container. Plasma is an ionized gas where particles have high energy levels and are not packed tightly together, making it an uncommon state of matter on Earth.
3. Choose the meaning of the word inhibiting in the following sentence: 'This medication works by inhibiting the action of a certain enzyme.'
- A. Occupying
- B. Speeding
- C. Hindering
- D. Enhancing
Correct answer: C
Rationale: Inhibiting means to prevent, restrain, or impede. In the context of the sentence, inhibiting the action of a certain enzyme refers to hindering or slowing down the enzyme's activity. Choice A ('Occupying') is incorrect as inhibiting does not mean taking up space. Choice B ('Speeding') is incorrect as inhibiting does not mean to accelerate. Choice D ('Enhancing') is incorrect as inhibiting is the opposite of enhancing.
4. Select the meaning of the word 'symmetric' in the sentence: 'The symmetric patterns of scarring were evident on the patient's back.'
- A. scabbed
- B. painful
- C. corresponding
- D. geometric
Correct answer: C
Rationale: In this context, 'symmetric' refers to patterns that correspond or are balanced on both sides, exhibiting symmetry. The scarring on the patient's back displayed a mirrored or corresponding arrangement. Choices A, B, and D are incorrect because 'symmetric' does not mean scabbed, painful, or geometric in this sentence.
5. A reader might infer from this passage that NASA ___________.
- A. Plans new twin studies as it aims for Mars
- B. Allows other agencies to study its astronauts
- C. Will use these data in planning future trips
- D. Cares more about physiology than psychology
Correct answer: C
Rationale: The passage suggests that NASA will use the findings from the twin study to plan future extended space missions.
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