oxygen is exchanged between blood and tissues at which of the following areas
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Nursing Elites

ATI TEAS 7

TEAS 7 Science Practice Test

1. Where is oxygen exchanged between blood and tissues?

Correct answer: A

Rationale: Oxygen is exchanged between blood and tissues primarily at the capillaries. Capillaries are the smallest blood vessels where the exchange of oxygen, nutrients, and waste products occurs between the blood and the tissues. This exchange process is crucial for delivering oxygen to the body's cells and eliminating carbon dioxide waste. Veins carry blood back to the heart, arteries carry blood away from the heart, and ventricles are the lower chambers of the heart responsible for pumping blood. Therefore, capillaries are the correct answer for where oxygen is exchanged between blood and tissues.

2. What is the process of changing from a liquid to a gas called?

Correct answer: C

Rationale: The correct answer is C: Vaporization. Vaporization is the process by which a substance changes from a liquid state to a gas state. Choice A, Freezing, is incorrect as it refers to the process of changing from a liquid to a solid. Choice B, Condensation, is incorrect as it describes the process of changing from a gas to a liquid. Choice D, Sublimation, is incorrect as it involves changing directly from a solid to a gas without passing through the liquid state.

3. Which mineral is essential for muscle function and nerve transmission?

Correct answer: D

Rationale: Potassium is the correct answer as it is essential for muscle function and nerve transmission. Potassium plays a crucial role in regulating muscle contractions, including the heart's beating, and is vital for transmitting electrical signals within the nervous system. Calcium (Choice A) is important for muscle contraction but is not the primary mineral for nerve transmission. Iron (Choice B) is important for oxygen transport in the blood. Sodium (Choice C) is important for fluid balance but is not primarily responsible for muscle function and nerve transmission.

4. Two even integers and one odd integer are multiplied together. Which of the following could be their product?

Correct answer: D

Rationale: When multiplying two even integers and one odd integer, the product will always be even. This is because multiplying any number of even integers will always result in an even number. Therefore, the only possible product from the given options is 24, as it is the only even number listed. Choices A, B, and C are incorrect as they are all odd numbers, and the product of two even integers and one odd integer will never result in an odd number.

5. Why does the author say it is important to buy locally grown food?

Correct answer: B

Rationale: The author stresses the significance of buying locally grown food due to its minimal travel distance, which results in reduced resource utilization. This aligns with the passage's primary environmental theme of conserving resources for the future. Choice A is incorrect because although buying locally grown food can support the community, the main focus in the passage is on resource conservation. Choice C is incorrect as the passage emphasizes the importance of packaging but does not specifically mention that locally grown food uses less packaging. Choice D is incorrect as the health aspect related to fewer pesticides is not discussed in the passage regarding the importance of buying locally grown food.

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