diabetic nephropathy a complication of diabetes affects the
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ATI TEAS 7

TEAS 7 practice test science

1. Diabetic nephropathy, a complication of diabetes, affects the:

Correct answer: D

Rationale: Diabetic nephropathy, a complication of diabetes, affects the nephrons. Nephrons are the functional units of the kidneys responsible for filtering blood and producing urine. The high blood sugar levels associated with diabetes can damage the nephrons over time, leading to kidney dysfunction and, ultimately, kidney failure. Choices A, B, and C are incorrect because diabetic nephropathy primarily impacts the nephrons in the kidneys, not the ureters, bladder, or urethra.

2. Which of the following describes the flow of genetic information from DNA to protein?

Correct answer: D

Rationale: The correct answer is D, 'Both transcription and translation.' Genetic information flows from DNA to RNA through transcription and from RNA to protein through translation. Replication is the process of copying DNA to produce an identical DNA molecule. Choice A, 'Replication,' is incorrect because replication is not directly involved in the flow of genetic information from DNA to protein. Choice B, 'Transcription,' is incorrect as it represents the process of synthesizing RNA from a DNA template, which is the initial step in the flow of genetic information. Choice C, 'Translation,' is also incorrect as it refers to the process of translating the information in mRNA into a sequence of amino acids during protein synthesis, which is the second step in the flow of genetic information.

3. What is the name of the master gland that regulates the function of many other endocrine glands?

Correct answer: B

Rationale: The pituitary gland is commonly referred to as the master gland because it controls the functions of numerous other endocrine glands in the body. It secretes various hormones that are essential for regulating processes like growth, metabolism, reproduction, and stress response. The thyroid gland (Choice A) primarily regulates metabolism and does not oversee other endocrine glands. The hypothalamus (Choice C) plays a role in regulating the pituitary gland but is not the master gland. The adrenal gland (Choice D) produces hormones related to stress response but is not considered the master gland that regulates other endocrine glands.

4. Which of the following correctly describes a strong acid?

Correct answer: A

Rationale: The correct answer is A. A strong acid is defined as an acid that completely ionizes in water, meaning it dissociates fully into its constituent ions in solution. This characteristic differentiates strong acids from weak acids, which do not fully dissociate in water. Choice B is incorrect because the number of protons donated does not solely define the strength of an acid. Choice C is incorrect as strong acids are not defined by the presence of metal atoms, and Choice D is incorrect because all acids can decompose, but the strength of the acid is based on its ability to ionize in water.

5. Which of the following organs is NOT part of the circulatory system?

Correct answer: A

Rationale: The correct answer is A: Kidneys. The kidneys are not part of the circulatory system. While the circulatory system includes the heart, blood, and blood vessels (arteries, veins, capillaries), the kidneys belong to the urinary system. The kidneys are responsible for filtering waste products from the blood and producing urine. Choice B, the heart, is a vital organ in the circulatory system responsible for pumping blood. Choice C, blood, is a key component of the circulatory system that carries oxygen and nutrients to the body's tissues. Choice D, blood vessels (arteries, veins, capillaries), facilitate the circulation of blood throughout the body, playing a crucial role in the circulatory system.

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