ATI TEAS 7
Science TEAS Practice Test
1. Which of the following organs functions as both an endocrine and exocrine gland?
- A. The kidney
- B. The spleen
- C. The pancreas
- D. The stomach
Correct answer: C
Rationale: The pancreas is the correct answer as it functions as both an endocrine and exocrine gland. The endocrine function involves secreting insulin and glucagon into the bloodstream to regulate blood sugar levels, while the exocrine function involves releasing digestive enzymes into the small intestine to aid in digestion. The kidney (Choice A) primarily functions in the excretory system by filtering blood and producing urine. The spleen (Choice B) is involved in the immune system and blood storage but does not have endocrine or exocrine functions. The stomach (Choice D) is mainly an organ of the digestive system, secreting gastric juices to aid in digestion, but it does not have a dual endocrine and exocrine function like the pancreas.
2. The tone of a text is ____________ if the words say the opposite of what they really mean.
- A. ironic
- B. earnest
- C. confused
- D. unambiguous
Correct answer: A
Rationale: The correct answer is 'A: ironic.' In literature, irony is when there is a contrast between what is said and what is meant. It is a technique used to convey humor, sarcasm, or to emphasize a point indirectly. 'Earnest' (choice B) refers to being sincere or genuine, which is the opposite of what the question is describing. 'Confused' (choice C) does not accurately capture the concept of words saying the opposite of what they mean. 'Unambiguous' (choice D) means clear and not open to interpretation, which is the opposite of a situation where words have a hidden or opposite meaning.
3. Protestors filled the streets of the city because they were dissatisfied with the government’s leadership. Which of the following is an appropriately-punctuated correction for this sentence?
- A. Protestors filled the streets of the city, because they were dissatisfied with the government’s leadership.
- B. Protesters, filled the streets of the city, because they were dissatisfied with the government’s leadership.
- C. Because they were dissatisfied with the government’s leadership, protestors filled the streets of the city.
- D. Protestors filled the streets of the city because they were dissatisfied with the government’s leadership.
Correct answer: D
Rationale: The correct answer is D. The sentence should be corrected by removing the period and joining the clauses to avoid a sentence fragment. Option A is incorrect because it incorrectly separates the clauses with a comma. Option B is incorrect as it incorrectly uses a comma after 'Protesters' and lacks proper structure. Option C is incorrect as it places the subordinate clause at the beginning, which disrupts the flow of the sentence.
4. What is the process of making copies of RNA from DNA called?
- A. Replication
- B. Transcription
- C. Translation
- D. DNA repair
Correct answer: B
Rationale: Transcription is the correct answer. Transcription is the process of making copies of RNA from DNA. During transcription, the enzyme RNA polymerase binds to a specific region of DNA and synthesizes a complementary RNA strand based on the DNA template. This process is essential for gene expression and protein synthesis in cells. Replication (option A) refers to the process of making copies of DNA, not RNA. Translation (option C) is the process of synthesizing proteins from mRNA, not making copies of RNA from DNA. DNA repair (option D) involves mechanisms that cells use to repair damaged DNA, not the process of making RNA copies from DNA.
5. How is power related to time?
- A. Power is inversely proportional to time
- B. Power is directly proportional to time
- C. Power is unrelated to time
- D. Power is the product of time and work
Correct answer: C
Rationale: Power is a measure of how quickly work is done or energy is transferred. It is defined as the rate at which work is done or energy is transferred. Power is not directly or inversely proportional to time, as it depends on the amount of work done or energy transferred, not the duration over which it is done. The relationship between power and time is not a direct one, so power is unrelated to time. Choice A and B are incorrect because power's relationship with time is not one of direct or inverse proportionality. Choice D is incorrect because power is not simply the product of time and work; it is the rate at which work is done or energy is transferred, which can vary independently of time.
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