ATI TEAS Science Test

ATI TEAS Science Test Related

Review ATI TEAS Science Test related questions and content

Which human body system is correctly matched with its function?

  • A. Respiratory system; exchanges oxygen and carbon dioxide in the lungs.
  • B. Circulatory system; transports oxygen to cells and removes carbon dioxide.
  • C. Lymphatic system; produces antibodies that destroy virally affected or foreign cells.
  • D. Endocrine system; regulates hormones controlling bodily functions and metabolism.
Correct Answer: B

Rationale: The circulatory system is responsible for the transportation of oxygen from the lungs to all the body's cells and tissues, as well as removing carbon dioxide from the cells and transporting it back to the lungs to be exhaled. This process is crucial for cellular respiration and the exchange of gases necessary for bodily functions. Choice B accurately matches the role of the circulatory system by describing its function of transporting oxygen to cells and removing carbon dioxide, which is essential for maintaining proper cellular activities. Choices A, C, and D are incorrect because they do not accurately match the body system with its function. The respiratory system primarily involves the exchange of gases in the lungs, not transportation to cells; the lymphatic system deals with immunity through the production of antibodies, not gas exchange; and the endocrine system's main function is hormone regulation, not the transport of gases.

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Which of the following terms means close to the trunk of the body?

  • A. Superficial
  • B. Sagittal
  • C. Proximal
  • D. Distal
Correct Answer: C

Rationale: The term 'proximal' means situated close to the point of attachment or the center of the body, such as close to the trunk. In anatomical terms, proximal is used to describe locations that are closer to the body's center or point of reference. 'Superficial' refers to something situated near the surface, 'sagittal' refers to a plane that divides the body into left and right portions, and 'distal' refers to a position away from the center or point of reference. Therefore, 'proximal' is the correct term to indicate a position close to the trunk of the body.

Which of the following is considered an extensive property?

  • A. Weight
  • B. Density
  • C. Conductivity
  • D. Malleability
Correct Answer: A

Rationale: Weight is correctly identified as an extensive property. Extensive properties are dependent on the amount of the substance present. Weight is directly proportional to the quantity of the substance, making it an extensive property. In contrast, density, conductivity, and malleability are intensive properties, which remain constant regardless of the amount of substance. Therefore, the correct answer is 'Weight' as it changes with the quantity of the substance, aligning with the definition of an extensive property.

Where is the scapula in relation to the olecranon?

  • A. Distal
  • B. Lateral
  • C. Ventral
  • D. Superior
Correct Answer: D

Rationale: The correct answer is D: 'Superior.' The scapula is located superior to the olecranon. In anatomical terms, 'superior' refers to a position above or higher than a reference point. 'Distal' is a term used to describe a position farther away from the point of attachment or origin. 'Lateral' refers to a position further away from the midline of the body. 'Ventral' refers to the front or anterior side of the body. In this case, the scapula being superior to the olecranon means it is positioned above the olecranon bone.

Which of the following items is NOT a primary function of a healthy immune system?

  • A. The immune system helps the body avoid infections.
  • B. The immune system detects infections.
  • C. The immune system eliminates infections.
  • D. The immune system creates infections.
Correct Answer: D

Rationale: The correct answer is D. The primary functions of a healthy immune system do not involve creating infections. A healthy immune system helps the body avoid infections by providing defense mechanisms, detects infections by recognizing harmful pathogens, and eliminates infections by attacking and clearing out pathogens. Creating infections goes against the protective role of the immune system and is not a function it performs. Therefore, choices A, B, and C are correct functions of a healthy immune system, while choice D is incorrect.

Examine the following decomposition reaction: ABC → ______. Which of the following is a possible set of products for this reaction?

  • A. 2AB + C
  • B. AB + CD
  • C. A + BC
  • D. B + C
Correct Answer: C

Rationale: In a decomposition reaction, a single reactant breaks down into two or more products. For the decomposition of ABC, a plausible set of products is A + BC. This reaction represents the breakdown of ABC into two separate components: A and BC. The correct choice C aligns with the fundamental concept of decomposition reactions, where a compound disintegrates into simpler substances. Choices A, B, and D do not reflect a proper decomposition reaction as they do not demonstrate the breakdown of the original compound into distinct components.

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