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ATI TEAS 7 · Science · TEAS Test 7 science

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

What is the term for the first exposure to a specific pathogen, leading to the development of an initial immune response?

A. Primary immune response

B. Secondary immune response

C. Hypersensitivity reaction

D. Immunological tolerance

Correct Answer: Primary immune response

Question 2 of 5

Which of the following is a common property of both acids and bases?

A. React with metals to produce hydrogen gas

B. Taste sour

C. Turn blue litmus paper red

D. Conduct electricity when dissolved in water

Correct Answer: Conduct electricity when dissolved in water

Question 3 of 5

What enzymes do lysosomes contain, leading to their nickname as the cell's 'suicide bags'?

A. Hydrolytic enzymes

B. Ligases (bonding enzymes)

C. Transferases (molecule transfer)

D. Oxidoreductases (redox reactions)

Correct Answer: Hydrolytic enzymes

Question 4 of 5

What is the primary function of the heart?

A. Filtering blood

B. Exchanging gases

C. Pumping blood throughout the body

D. Producing hormones

Correct Answer: Pumping blood throughout the body

Question 5 of 5

In endocrine regulation, the feedback loop is a critical concept. In a negative feedback loop, high levels of a hormone can result in:

A. Further stimulating the release of the same hormone

B. Inhibiting the release of the hormone or its production

C. Having no effect on the hormone's regulation

D. Increasing the need for another hormone entirely

Correct Answer: Inhibiting the release of the hormone or its production

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