what is the function of white blood cells
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ATI TEAS 7

Practice TEAS Science Test

1. What is the function of white blood cells?

Correct answer: B

Rationale: White blood cells play a crucial role in the immune system by fighting infection and protecting the body from foreign invaders. Choice A, 'To transport oxygen,' is incorrect because red blood cells are responsible for transporting oxygen. Choice C, 'To carry oxygen,' is also inaccurate for the same reason. Choice D, 'To produce antibodies,' while related to the immune system, is not the primary function of white blood cells, as their main role is to directly combat infections.

2. Which of the following most accurately describes how the argument proceeds?

Correct answer: A

Rationale: The correct answer is A. The argument in the text proceeds by stating a conclusion ('Dwight is the best employee') and then providing supporting evidence ('The top salesman is always the best employee'). This aligns with choice A, where the argument is structured by stating a conclusion first and then offering supporting evidence. Choices B, C, and D are incorrect because the argument in the text does not simply present facts and draw a conclusion, offer a premise and then refute it, or make a comparison between two subjects.

3. To which section of the library should Jorgen go to learn more about the letters of the Greek alphabet and the meaning of the word 'beta'?

Correct answer: B

Rationale: Jorgen should go to section 400 in the library to learn more about the letters of the Greek alphabet and the meaning of the word 'beta.' Section 400 is dedicated to languages, making it the most suitable place to find information on alphabets. Choices A, C, and D are incorrect because Section 200 is about religion, Section 700 is about arts and recreation, and Section 900 is about history, geography, and biography, which are not relevant to Jorgen's search for information on the Greek alphabet.

4. Based on the words transfer, transact, translation, transport, what is the meaning of the prefix trans?

Correct answer: D

Rationale: The prefix 'trans-' in words such as transfer, transact, translation, and transport signifies movement or change from one place, state, or form to another. It indicates going across, beyond, or over something, connecting the original state to a different one. Choice A, 'Separation,' is incorrect as the prefix 'trans-' does not imply separation but rather movement or change between states. Choice B, 'All, everywhere,' is incorrect as the prefix does not convey a sense of being all-encompassing but rather focuses on the action of crossing or changing. Choice C, 'Forward,' is incorrect as the prefix 'trans-' is more about moving across or beyond rather than strictly forward.

5. Which word best completes the sentence: 'The students _______ finished their exams.'

Correct answer: B

Rationale: In the sentence, 'The students' is referring to a plural subject. Since 'students' is plural, the correct verb should also be plural. 'Have' is the correct verb form for the plural subject 'students' in this sentence. Choices A, C, and D are incorrect because 'has' and 'is' are singular verbs, while 'was' is past tense and does not agree with the present tense of 'finished.' Therefore, the correct choice is B: 'have.'

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