ATI TEAS 7 Science

Correct Answer: B

Rationale: The correct answer is B: To secrete digestive enzymes. The pancreas secretes enzymes such as amylase, lipase, and proteases that help break down carbohydrates, fats, and proteins in the small intestine. This aids in the digestion and absorption of nutrients. Storing bile (A) is the role of the gallbladder, digesting proteins (C) is primarily done by the stomach and small intestine, and absorbing nutrients (D) mainly occurs in the small intestine.

Correct Answer: D

Rationale: The correct answer is D: Trachea. The trachea is the largest part of the airway. It is a tube that connects the larynx to the bronchi, allowing air to pass into and out of the lungs. The trachea is larger than the bronchi, bronchioles, and alveoli. Alveoli are tiny air sacs in the lungs where gas exchange occurs. Bronchi are the main air passages into the lungs, branching off from the trachea. Bronchioles are smaller branches of the bronchi. Therefore, the trachea is the largest structure among the given choices, making it the correct answer.

Correct Answer: D

Rationale: The correct answer is D because muscle tissue is indeed involved in all the functions listed. Muscles generate body heat through metabolism, stabilize joints by providing support and movement, and help maintain posture by keeping the body in an upright position. Therefore, muscle tissue plays a crucial role in all these functions. Choices A, B, and C are incorrect individually as they only represent a part of the functions that muscle tissue is involved in, whereas the correct answer encompasses all aspects of muscle function in the body.

Correct Answer: A

Rationale: Acceleration is defined as the rate of change of velocity over time. This means that acceleration measures how quickly an object's velocity is changing. By choosing answer A, "Change in velocity over time," you are correctly identifying the definition of acceleration. Choice B, "Speed in a straight line," is incorrect because speed does not take into account the change in velocity, which is vital in defining acceleration. Choice C, "Distance covered in a given time," is incorrect as it pertains to speed or distance traveled, not acceleration, which specifically relates to changes in velocity. Choice D, "Force applied to an object," is incorrect because force is a completely different concept in physics and is not directly related to the definition of acceleration.

Correct Answer: B

Rationale: The correct answer is B: Glomerulus. The glomerulus is a tuft of capillaries located within the nephron, specifically in the renal cortex. It is responsible for filtering blood and forming the initial filtrate in the process of urine formation. The other choices are incorrect because: A: Ureter - a tube that carries urine from the kidneys to the bladder. C: Nephron - the functional unit of the kidney that includes the glomerulus but is not solely responsible for filtering blood. D: Renal artery - carries oxygenated blood to the kidneys but is not directly involved in the filtration process.