ATI TEAS 7
ATI TEAS Science Practice Test
1. What is the anatomical term for the back of the body? Example: Shoulder blade.
- A. Anterior
- B. Superior
- C. Posterior
- D. Inferior
Correct answer: C
Rationale: The correct answer is C: Posterior. 'Posterior' is the anatomical term that refers to the back of the body. It is the opposite of 'anterior,' which refers to the front of the body. 'Superior' typically describes a structure that is positioned above another structure, while 'inferior' refers to a structure that is below another. In this case, the term 'posterior' specifically indicates the back of the body, making it the most appropriate choice among the options provided.
2. Which system is responsible for transporting nutrients, gases, and wastes in the body?
- A. Respiratory system
- B. Digestive system
- C. Circulatory system
- D. Nervous system
Correct answer: C
Rationale: The circulatory system is responsible for transporting nutrients, gases, and wastes to and from the cells in the body. It includes the heart, blood vessels, and blood, which work together to distribute oxygen, nutrients, and remove waste products throughout the body. The respiratory system is primarily involved in gas exchange, the digestive system breaks down food for absorption, and the nervous system is responsible for transmitting signals throughout the body.
3. Which of the following factors can contribute to erectile dysfunction in males?
- A. Diabetes
- B. Cardiovascular disease
- C. Neurological disorders
- D. All of the above
Correct answer: D
Rationale: Erectile dysfunction can be caused by various factors, including diabetes, cardiovascular disease, and neurological disorders. These conditions can impact blood flow, nerve function, and hormone levels, all crucial for achieving and maintaining an erection. Diabetes can lead to nerve damage and affect blood circulation. Cardiovascular disease can restrict blood flow to the penis. Neurological disorders can interfere with the transmission of nerve signals between the brain and the reproductive organs. Therefore, all the factors mentioned in options A, B, and C can contribute to erectile dysfunction in males.
4. What is the primary function of the liver?
- A. To produce bile, which aids in the digestion of fats
- B. To store energy in the form of glycogen
- C. To produce proteins that assist in blood clotting
- D. To detoxify harmful substances in the body
Correct answer: D
Rationale: The primary function of the liver is to detoxify harmful substances in the body. While the liver does produce bile to aid in the digestion of fats, this is not its primary function. Bile is stored in the gallbladder and released into the small intestine for fat digestion. Storing energy in the form of glycogen is a function of the liver, but not its primary one. Glycogen serves as a reserve of glucose. Although the liver produces proteins that assist in blood clotting, such as fibrinogen and prothrombin, this is not its main function. These proteins play a crucial role in blood clotting to prevent excessive bleeding. Therefore, the primary role of the liver is to detoxify harmful substances by processing and removing toxins, drugs, alcohol, and other harmful substances from the bloodstream, thereby reducing their harmful effects.
5. In a neutral atom, the number of electrons is:
- A. Must be equal to the number of protons.
- B. Must be less than the number of protons.
- C. Must be greater than the number of neutrons.
- D. Can vary depending on the atom's temperature.
Correct answer: A
Rationale: In a neutral atom, the number of electrons must be equal to the number of protons to maintain electrical neutrality. Electrons carry a negative charge while protons carry a positive charge. By having an equal number of electrons and protons, the positive and negative charges balance each other out, resulting in an electrically neutral atom. Choice B is incorrect because in a neutral atom, the number of electrons and protons must be equal. Choice C is incorrect as it compares electrons to neutrons, which are not directly related in determining an atom's charge. Choice D is incorrect as the number of electrons in a neutral atom is not dependent on the atom's temperature but rather on the atom's balance of positive and negative charges.
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