the word part placed before a word to change its meaning is a

HESI A2

HESI A2 Practice Test Vocabulary

1. What is the term for the word part placed before a word to change its meaning?

A. Prefix
B. Affix
C. Suffix
D. Vocab

Correct answer: A

Rationale: The correct answer is 'Prefix.' A prefix is a word part that is placed before a root word to modify its meaning. In this case, a prefix changes the meaning of the root word. Choice B, 'Affix,' is a broader term that includes prefixes, suffixes, and infixes. Choice C, 'Suffix,' is a word part placed after a root word to modify its meaning, not before. Choice D, 'Vocab,' is unrelated to the word part placed before a word.

2. Which part of the sentence contains a typographical error?

A. To a
B. Very strong
C. Being
D. Went from

Correct answer: D

Rationale: The correct answer is D. The phrase 'Went form' contains a typographical error. It should be 'went from' to indicate the change in condition correctly. Choice A 'To a,' choice B 'Very strong,' and choice C 'Being' are grammatically correct and do not contain any typographical errors in the given sentence.

3. Select the meaning of the word 'reflex' in the sentence: 'The typical patellar reflex takes only 50 milliseconds between the initial tap and the leg extension.'

A. Replication
B. Convulsion
C. Reaction
D. Stretching

Correct answer: C

Rationale: In the context of the sentence, the word 'reflex' indicates a quick, automatic response by the body to a stimulus. The patellar reflex, also known as the knee-jerk reflex, involves the leg extending in response to a tap on the patellar tendon. Therefore, the word 'reaction' aligns closely with the nature of the patellar reflex in terms of a rapid and involuntary response. Choices A, B, and D are incorrect: 'Replication' does not capture the concept of a bodily response, 'convulsion' implies a sudden and uncontrollable movement which is not specific to the nature of the patellar reflex, and 'stretching' does not encompass the automatic and rapid nature of a reflex action.

4. What is another word for EXPEDITE?

A. Transfer
B. Rush
C. Cancel
D. Hold

Correct answer: B

Rationale: The correct answer is B: Rush. To expedite means to accelerate the progress or speed of something, to hasten or facilitate. 'Transfer' (choice A) means to move from one place to another, 'Cancel' (choice C) means to call off, and 'Hold' (choice D) means to keep or detain. Therefore, 'Rush' is the most appropriate synonym for expedite in this context.

5. 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.