what is the meaning of pernicious

HESI A2

Vocabulary for HESI A2

1. What is the meaning of pernicious?

A. Harmless
B. Destructive
C. Infectious
D. Helpful

Correct answer: B

Rationale: The correct answer is B, 'Destructive.' Pernicious means causing great harm or damage. Choice A, 'Harmless,' is the opposite of pernicious. Choice C, 'Infectious,' refers to the ability of a disease to spread. Choice D, 'Helpful,' is also the opposite of pernicious and does not capture the negative connotation associated with the term.

2. What is the description of the word ENVIRONMENT?

A. The major ideas of the quality of life.
B. The assistance found outside the family.
C. The elements inside and outside of a person.
D. The positive and negative aspects of a home.

Correct answer: C

Rationale: The correct answer is C because the environment refers to the surroundings or conditions in which a person, animal, or plant lives or operates, encompassing both internal and external factors. Choices A, B, and D are incorrect as they do not accurately define the concept of 'environment.' Choice A is too broad and does not specifically address the components of an environment. Choice B is vague and does not capture the entirety of what an environment entails. Choice D is limited in scope, focusing solely on a home environment rather than the broader concept of environment.

3. Select the meaning of the quoted word in the sentence. The doctor instructed the patient to keep his head 'elevated'.

A. Raised
B. Turned
C. Still
D. Thrown back

Correct answer: A

Rationale: The correct answer is A, 'Raised.' In this context, 'elevated' means to be lifted or raised up. The doctor's instruction implies keeping the patient's head in an upward position. Choices B, C, and D are incorrect. 'Turned' suggests a change in direction, 'still' means without movement, and 'thrown back' implies a forceful backward motion, none of which capture the meaning of 'elevated' in this scenario.

4. What is the crystalline compound that is a product of protein metabolism known as?

A. uracil
B. urine
C. ureter
D. urea

Correct answer: D

Rationale: Urea is the correct answer. It is the crystalline compound formed in the liver from the breakdown of proteins, a byproduct of protein metabolism. Urea is excreted by the kidneys in the form of urine, aiding in the elimination of nitrogenous waste from the body. Uracil (Choice A) is a nitrogenous base found in RNA, not a product of protein metabolism. Urine (Choice B) is the liquid waste excreted by the kidneys but not the crystalline compound resulting from protein metabolism. Ureter (Choice C) is a duct that carries urine from the kidneys to the bladder, not the compound produced from protein metabolism.

5. He tried to remember the names of all the people who were there that night.

A. that
B. who
C. which
D. whom

Correct answer: B

Rationale: In this context, 'who' is the correct relative pronoun to refer to people. 'That' is used for things, 'which' is used for animals or things, and 'whom' is an object pronoun, not needed in this sentence. Therefore, 'who' is the most appropriate choice.