which of the following glands produces hormones that regulate metabolism
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ATI TEAS 7

ATI TEAS Practice Test Science

1. Which of the following glands produces hormones that regulate metabolism?

Correct answer: C

Rationale: The thyroid gland is responsible for producing hormones that play a crucial role in regulating metabolism. One of the key hormones produced by the thyroid gland is thyroxine, which directly influences the body's metabolic rate. Therefore, the correct answer is the thyroid gland. The adrenal gland produces hormones like adrenaline, which are associated with the stress response and not primarily metabolic regulation. The pituitary gland regulates various other hormones but is not primarily responsible for metabolic regulation. The liver has a role in metabolism, mainly in processes like detoxification and nutrient storage, but it is not a gland that primarily produces hormones for metabolic regulation, making it an incorrect choice in this context.

2. What is the main purpose of paragraph 1?

Correct answer: C

Rationale: The main purpose of paragraph 1 is to explain the progression of stories within society, from oral tradition to the impact of the printing press. It outlines how stories evolved over time, transitioning from oral storytelling to written material made widely available by the printing press. This paragraph serves as an introduction to the evolution of storytelling mediums throughout history, setting the stage for the subsequent discussion. Choices A and B are incorrect because the paragraph does not solely focus on explaining oral tradition or the importance of the printing press. Choice D is incorrect as the paragraph does not aim to introduce the essay but rather provide a historical context for the discussion on the evolution of storytelling.

3. Which of the following is an example of an unsaturated fatty acid?

Correct answer: C

Rationale: Oleic acid is an example of an unsaturated fatty acid because it contains one or more double bonds in its hydrocarbon chain, leading to kinks in the chain structure. This unsaturation gives it a lower melting point compared to saturated fatty acids. Stearic acid (A), Palmitic acid (B), and Butyric acid (D) are examples of saturated fatty acids as they do not contain any double bonds in their hydrocarbon chains, leading to a straight structure and higher melting points.

4. What happens when the diaphragm contracts?

Correct answer: B

Rationale: When the diaphragm contracts, it moves downward, creating more space in the chest cavity. This expansion of the chest cavity causes the lungs to expand as well, allowing air to be drawn into the lungs during inhalation. Therefore, the correct answer is that the lungs expand to allow air intake when the diaphragm contracts. Choices A, C, and D are incorrect because when the diaphragm contracts, it does not expel air from the lungs, cause the vocal cords to vibrate, or narrow the trachea to control airflow.

5. What is the main function of red blood cells?

Correct answer: A

Rationale: The correct answer is A: Transport oxygen. Red blood cells are primarily responsible for carrying oxygen from the lungs to the tissues in the body. Hemoglobin, a protein found in red blood cells, binds to oxygen in the lungs and releases it to cells throughout the body. This oxygen transport is essential for cellular respiration and energy production in the body. Red blood cells do not regulate blood pressure or heart rate; their main role is oxygen transport. Choices B, C, and D are incorrect because red blood cells do not transport carbon dioxide, regulate blood pressure, or regulate heart rate. These functions are primarily carried out by other components of the circulatory and regulatory systems.

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