ATI TEAS 7
Biology
1. Which of the following is the main function of the liver?
- A. To produce bile, which helps digest fats
- B. To store energy in the form of glycogen
- C. To produce proteins that help to clot blood
- D. To detoxify harmful substances in the body
Correct answer: D
Rationale: Rationale: A) The liver does produce bile, which helps in the digestion of fats, but this is not its main function. Bile is stored in the gallbladder and released into the small intestine to aid in the digestion and absorption of fats. B) While the liver does store energy in the form of glycogen, this is not its main function. Glycogen is a form of glucose storage that can be broken down into glucose when the body needs energy. C) The liver does produce proteins that help to clot blood, such as fibrinogen and prothrombin, but this is not its main function. These proteins are essential for the blood clotting process to prevent excessive bleeding. D) The main function of the liver is to detoxify harmful substances in the body. The liver processes and removes toxins, drugs, alcohol, and other harmful substances from the bloodstream, making them less harmful and
2. Which conjunction best joins the following sentence: "She loves animals, ____ she volunteers at the shelter."
- A. because
- B. therefore
- C. so
- D. and
Correct answer: D
Rationale: "And" simply adds information about her love for animals without implying cause or effect.
3. A bag contains 5 red marbles and 7 blue marbles. If you draw a marble without looking, what is the probability it will be red?
- A. 1/4
- B. 1/3
- C. 1/2
- D. 2/3
Correct answer: A
Rationale: Divide the number of red marbles (5) by the total number of marbles (12) to get 1/3 probability.
4. What property of a wave is responsible for determining its energy?
- A. Amplitude
- B. Wavelength
- C. Frequency
- D. Velocity
Correct answer: a
Rationale: The amplitude of a wave determines its energy, with higher amplitudes corresponding to higher energy levels.
5. What is the role of the appendix, a small pouch attached to the large intestine?
- A. To store waste products
- B. To produce immune cells
- C. To secrete digestive enzymes
- D. To regulate blood sugar levels
Correct answer: B
Rationale: While the exact function of the appendix is still debated, it likely houses lymphoid tissue, contributing to the immune system.
6. What does the term "net force" refer to in physics?
- A. Total force acting on an object
- B. Force due to gravity
- C. Force in motion
- D. Force of friction
Correct answer: a
Rationale: Net force is the vector sum of all forces acting on an object.
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