ati teas 7 science

Questions 173

ATI TEAS 7

ATI TEAS 7 Test Bank

ati teas 7 science Questions

Question 1 of 5

Bile, a yellowish-green fluid, is stored in the gallbladder and released into the small intestine during digestion. What is the primary function of bile in digestion?

Correct Answer: C

Rationale: The correct answer is C: Emulsify fats. Bile helps emulsify fats by breaking them down into smaller droplets, increasing the surface area for enzymes to digest fats. This aids in the absorption of fats and fat-soluble vitamins in the small intestine. Choice A is incorrect because bile does not break down carbohydrates. Choice B is incorrect as bile does not break down proteins. Choice D is incorrect because bile does not neutralize stomach acid; rather, it helps with fat digestion in the small intestine.

Question 2 of 5

What is the primary function of the digestive system?

Correct Answer: A

Rationale: The primary function of the digestive system is to break down food into nutrients for absorption by the body. This process involves mechanical and chemical digestion to convert food into molecules that can be absorbed by the intestines. Option A is correct as it describes this essential function. Option B is incorrect because the absorption of oxygen primarily occurs in the respiratory system. Option C is incorrect as the production of energy is mainly attributed to the metabolic processes within cells. Option D is incorrect as the regulation of body temperature is primarily controlled by the thermoregulatory system, not the digestive system.

Question 3 of 5

What term refers to the point of contact between a motor neuron and a muscle fiber, where communication occurs to initiate muscle contraction?

Correct Answer: B

Rationale: The correct answer is B: Synapse. The synapse is the point of contact between a motor neuron and a muscle fiber where communication occurs via neurotransmitters like acetylcholine to initiate muscle contraction. A: Sarcomere is a structural unit of a muscle fiber, not the point of contact for communication. C: Tendon is a fibrous connective tissue that attaches muscle to bone, not involved in neuron-muscle communication. D: Myofibril is a cylindrical organelle within muscle fibers where muscle contractions occur, but it is not the specific point of contact for neuron communication.

Question 4 of 5

What is the acceleration of an object moving at a constant speed of 20 m/s if it comes to a complete stop within 5 seconds?

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.

Question 5 of 5

Which of the following situations represents work being done on an object?

Correct Answer: C

Rationale: The correct answer is C because lifting a box to place it on a shelf involves exerting a force to overcome gravity, resulting in the displacement of the box. Work is defined as the product of force and displacement in the direction of the force applied. In this scenario, the force applied (lifting the box) results in the box being displaced vertically, which meets the criteria for work being done. Choices A, B, and D do not represent work being done on an object because in these situations, the objects do not experience a displacement in the direction of the force applied. In choice A, the wall does not move, so no displacement occurs. In choice B, carrying a heavy object without lifting it does not involve any vertical displacement. In choice D, holding a book stationary in your hand does not result in any displacement of the book. Therefore, only choice C fulfills the criteria for work being done on an object.

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