what is the primary function of antibodies 5964172
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Nursing Elites

ATI TEAS 7

ATI TEAS Science Test

1. What is the primary function of antibodies?

Correct answer: D

Rationale: The correct answer is D: Facilitate the breakdown of antigens. Antibodies are protein molecules produced by the immune system in response to the presence of foreign substances, known as antigens, in the body. Antibodies bind to specific antigens and mark them for destruction by other immune cells, thereby helping the body to defend against infections and other threats. Choices A, B, and C are incorrect because antibodies do not have a direct role in the production of white blood cells, initiation of gluconeogenesis, or promotion of intracellular storage of lipids. The primary function of antibodies is to target and facilitate the destruction of antigens in the body.

2. The author of the passage describes Harriet Tubman's life as a slave to show

Correct answer: A

Rationale: The correct answer is A: 'why she wanted to escape slavery.' The author details Harriet Tubman's life as a slave to highlight the hardships and injustices she faced, motivating her to seek freedom for herself and others. Choice B is incorrect because while Tubman was a spy during the Civil War, the passage focuses on her experiences as a slave. Choice C is incorrect as the passage mentions her suffering from seizures due to a head injury, not as a primary reason for describing her life as a slave. Choice D is incorrect as the passage briefly mentions her experience as a nursemaid for a baby, but it does not focus on her love for babies as a key aspect of describing her life as a slave.

3. Robert secures three new clients every eight months. After how many months has he secured 24 new clients?

Correct answer: C

Rationale: To determine the number of months it takes for Robert to secure 24 new clients, we set up a proportion: 3 clients / 8 months = 24 clients / x months. Cross multiplying gives 3x = 8 * 24. Solving for x results in x = 64 / 3 = 52. Therefore, after 52 months, Robert has secured 24 new clients. Choice A (64) is incorrect as it miscalculates the solution. Choices B (58) and D (66) are also incorrect as they do not reflect the accurate calculation based on the given information.

4. Where is the heart located within the human body cavities?

Correct answer: C

Rationale: The heart is located within the thoracic cavity, specifically in the mediastinum, which is the central compartment of the thoracic cavity. The thoracic cavity is part of the ventral cavity, which also includes the abdominal cavity. The dorsal cavity refers to the posterior side of the body and does not contain the heart. The heart is situated in the thoracic cavity between the lungs and above the diaphragm, making option C the correct choice. Therefore, the correct answer is the thoracic cavity (option C). The ventral cavity (option B) includes the thoracic and abdominal cavities, but the heart is specifically situated in the thoracic cavity. The dorsal cavity (option A) is located on the posterior side of the body, not where the heart is positioned. The abdominal cavity (option D) is below the thoracic cavity and houses organs such as the stomach, liver, and intestines, but it does not contain the heart.

5. Which of the following words is hyphenated correctly?

Correct answer: D

Rationale: The correct answer is 'Mid-America.' It is correctly hyphenated as it combines 'Mid' and 'America' to form a compound noun. Choice A, 'Ex-president,' should be hyphenated to show the prefix 'Ex-' before 'president.' Choice B, 'Hyperactive,' should not be hyphenated as 'hyper' is a prefix. Choice C, 'Self-made,' should be hyphenated to connect 'self' and 'made' in this compound adjective.

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