which organ is primarily responsible for detoxification in the body
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ATI TEAS 7

Science TEAS Practice Test

1. Which organ is primarily responsible for detoxification in the body?

Correct answer: B

Rationale: The liver is the primary organ responsible for detoxifying chemicals and metabolizing drugs in the body. It plays a crucial role in breaking down toxins, filtering blood, and producing bile, making it essential for overall detoxification processes. The kidney primarily filters waste and excess substances from the blood to form urine. Lungs are responsible for gas exchange, not detoxification. The heart is responsible for pumping blood and does not play a direct role in detoxification processes.

2. A ball is thrown horizontally off a cliff with a speed of 10 m/s. What is the horizontal distance the ball travels before hitting the ground?

Correct answer: C

Rationale: When a ball is thrown horizontally, its horizontal velocity remains constant throughout its motion. The horizontal distance traveled by the ball is determined by the horizontal velocity and the time taken to hit the ground. In this case, the horizontal distance is calculated as distance = velocity × time. Since the horizontal velocity is 10 m/s, the horizontal distance traveled by the ball is 10 m/s × time. The time taken to hit the ground is determined by the vertical motion, which is independent of the horizontal velocity. Therefore, without knowing the height of the cliff, we can still determine the horizontal distance traveled by the ball. The horizontal distance is solely dependent on the horizontal velocity and the time of flight, which are not influenced by the height of the cliff. Hence, the correct answer is 30 m. Choice A, 10 m, is incorrect as it does not consider the time of flight. Choice B, 20 m, is incorrect as it does not account for the constant horizontal velocity. Choice D, 'Cannot be determined without knowing the height of the cliff,' is incorrect because the horizontal distance can be calculated independently of the height of the cliff.

3. What is the general formula for an alkene?

Correct answer: B

Rationale: The general formula for an alkene is \(C_nH_{2n}\), indicating the presence of a double bond between carbon atoms.

4. Which represents the correct order of airflow in the lungs?

Correct answer: C

Rationale: The correct order of airflow in the lungs starts with air entering through the trachea, moving into the bronchi, then proceeding to the bronchioles, and finally reaching the alveoli where gas exchange occurs. Therefore, the correct sequence is Trachea, Bronchi, Bronchioles, Alveoli, making choice C the accurate representation of the airflow in the lungs. Choices A, B, and D are incorrect because they do not follow the anatomical path of airflow in the lungs as air moves from the trachea to the bronchi, then bronchioles, and finally the alveoli for gas exchange.

5. Which of the following equations represents a redox reaction?

Correct answer: B

Rationale: A redox reaction involves the transfer of electrons between reactants. In option B, Zn loses electrons to form Zn2+ while H+ gains electrons to form H2. This exchange of electrons demonstrates a redox reaction, making choice B the correct answer. In options A, C, and D, there is no clear transfer of electrons between the reactants, indicating that they are not redox reactions. Option A represents a synthesis reaction, option C represents a decomposition reaction, and option D represents a combustion reaction. These types of reactions do not involve the transfer of electrons between reactants, unlike a redox reaction.

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