ATI TEAS 7
ATI TEAS Science Practice Test
1. Which type of reaction undergoes hydrolysis?
- A. Anabolism
- B. Catabolism
- C. Exothermic
- D. Endothermic
Correct answer: B
Rationale: The correct answer is 'Catabolism.' Catabolic reactions involve the breakdown of larger molecules into smaller ones, often through hydrolysis, where water is added to break chemical bonds. This process is essential for the degradation of complex molecules and the release of energy stored in chemical bonds. Choice A, 'Anabolism,' is incorrect as anabolism involves the synthesis of complex molecules from simpler ones. Choices C and D, 'Exothermic' and 'Endothermic,' refer to the heat energy exchange during a reaction and are not directly related to the process of hydrolysis.
2. What are the fluid-filled sacs that cushion the brain within the skull called?
- A. Meninges
- B. Cerebrospinal fluid
- C. Dura mater
- D. Arachnoid mater
Correct answer: B
Rationale: The correct answer is B, cerebrospinal fluid. Cerebrospinal fluid acts as a shock absorber, protecting the brain from impact and providing nutrients to brain cells. Meninges are the three protective layers of tissue that surround the brain and spinal cord. Dura mater and arachnoid mater are specific layers of the meninges, not the fluid-filled sacs that cushion the brain.
3. What is the definition of the word haunt in the following passage?
- A. To levitate
- B. To constantly visit
- C. To terrorize
- D. To daunt
Correct answer: B
Rationale: In this context, 'haunt' means to constantly visit a place. Mr. Utterson is repeatedly going over the details of the situation in his mind, engaging with the problem persistently, as seen in the passage. The word does not imply levitation, terrorizing, or daunting in this context, making choices A, C, and D incorrect.
4. At last night’s company function, in honor of Mr. Robertson’s retirement, several employees spoke kindly about his career achievements. In the preceding sentence, what part of speech is the word function?
- A. Adjective
- B. Adverb
- C. Verb
- D. Noun
Correct answer: D
Rationale: In the sentence provided, the word 'function' is used as a noun to refer to an event or gathering. Nouns name people, places, things, or ideas, and in this case, 'function' is a thing (an event), so it functions as a noun. Adjectives describe nouns, adverbs modify verbs, and verbs express actions or states, none of which apply to the word 'function' in the sentence. Therefore, the correct answer is 'D: Noun.' Choices 'A: Adjective,' 'B: Adverb,' and 'C: Verb' are incorrect because 'function' in this context isn't being used to describe, modify, or express an action; it is naming an event.
5. How many kilograms are in 1,800 grams?
- A. 0.18
- B. 1.8
- C. 18
- D. 180
Correct answer: B
Rationale: To convert grams to kilograms, divide by 1,000 since there are 1,000 grams in a kilogram. Therefore, 1,800 grams is equal to 1.8 kilograms (1,800 / 1,000 = 1.8). Choice A (0.18) is incorrect because it incorrectly shifted the decimal point. Choice C (18) is incorrect as it represents the direct conversion without dividing by 1,000. Choice D (180) is incorrect as it is in the hundreds and not the correct conversion to kilograms. The correct answer is B.
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