ATI TEAS 7
ATI TEAS 7 science review
1. What enzyme plays a key role in breaking down carbohydrates in the small intestine?
- A. Pepsin
- B. Lipase
- C. Amylase
- D. Trypsin
Correct answer: C
Rationale: Amylase is the enzyme responsible for breaking down carbohydrates in the small intestine. It specifically targets starches and sugars, breaking them down into smaller molecules like maltose and glucose that can be absorbed by the body. Pepsin is an enzyme that breaks down proteins in the stomach, not the small intestine. Lipase is responsible for breaking down fats, not carbohydrates. Trypsin is an enzyme that breaks down proteins in the small intestine, not carbohydrates.
2. Where is the cervix located?
- A. Top of the uterus
- B. Top of the ovaries
- C. Bottom of the vagina
- D. Bottom of the uterus
Correct answer: D
Rationale: The cervix is located at the bottom of the uterus, where it opens into the vagina. It serves as the passageway between the uterus and the vagina, playing a crucial role in childbirth and menstrual flow. Choice A ('Top of the uterus') is incorrect because the cervix is not located at the top of the uterus. Choice B ('Top of the ovaries') is incorrect as the cervix is not located near the ovaries. Choice C ('Bottom of the vagina') is incorrect as the cervix is not located at the bottom of the vagina, but rather at the bottom of the uterus.
3. Which of the following is a function of the liver?
- A. Producing digestive enzymes
- B. Storing bile
- C. Filtering waste products from the blood
- D. Transporting nutrients to cells
Correct answer: B
Rationale: The correct function of the liver is to store bile. Bile is produced in the liver and stored in the gallbladder until it is needed to aid in the digestion of fats. While the liver does produce bile, its primary role is to store and release it. Choices A, C, and D are incorrect. Producing digestive enzymes is mainly the function of the pancreas, filtering waste products from the blood is primarily done by the kidneys, and transporting nutrients to cells is typically associated with the circulatory system rather than the liver.
4. What is the role of bile in digestion?
- A. To break down carbohydrates
- B. To emulsify fats
- C. To neutralize stomach acid
- D. To absorb proteins
Correct answer: B
Rationale: Bile emulsifies fats, breaking them down into smaller droplets for easier digestion.
5. Using anatomical terms, what is the relationship of the sternum to the deltoid?
- A. Medial
- B. Lateral
- C. Superficial
- D. Posterior
Correct answer: A
Rationale: The sternum is located at the midline of the body, closer to the center, making it medial to the deltoid. The deltoid muscle is positioned on the lateral side of the upper arm, away from the midline. Therefore, the correct relationship of the sternum to the deltoid is medial. 'Lateral' is incorrect as it refers to a position farther away from the midline, 'Superficial' is incorrect as it relates to a structure being closer to the surface, and 'Posterior' is incorrect as it indicates a position behind or toward the back.
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