ATI TEAS 7
Chemistry
1. The number of protons in an atom is determined by its:
- A. Atomic mass
- B. Electron configuration
- C. Chemical properties
- D. Atomic number
Correct answer: C
Rationale: Atomic number is a fundamental property of an element and is independent of its mass, electron configuration, or chemical behavior.
2. What is the scientific term for inflammation of the bronchi, often associated with a cough and mucus production?
- A. Pneumonia
- B. Bronchitis
- C. Emphysema
- D. Pleurisy
Correct answer: B
Rationale: The correct answer is B: Bronchitis. Bronchitis is the scientific term for inflammation of the bronchi, which are the air passages in the lungs. This condition is often characterized by a cough, mucus production, and difficulty breathing. Pneumonia (A) is an infection that causes inflammation in the air sacs in the lungs, not the bronchi. Emphysema (C) is a chronic lung condition that results in the damage of the air sacs in the lungs, leading to difficulty breathing. Pleurisy (D) is inflammation of the pleura, the lining around the lungs, and is not directly related to inflammation of the bronchi. Therefore, option B is the correct answer in this case.
3. Identify the bone with the greatest length in the human body.
- A. Femur (Thigh bone)
- B. Humerus (Upper arm bone)
- C. Tibia (Shin bone)
- D. Scapula (Shoulder blade)
Correct answer: A
Rationale: The femur, exceeding a meter in length, bears significant weight and enables locomotion.
4. Which of the following is NOT a function of the skeletal system?
- A. Support and structure
- B. Production of red blood cells
- C. Storage of minerals like calcium
- D. Insulation of the body
Correct answer: A
Rationale: The correct answer is A. The skeletal system provides support and structure to the body, allowing for movement and protecting internal organs. The production of red blood cells occurs in the bone marrow, which is a function of the skeletal system. Additionally, the skeletal system stores minerals like calcium, which play a crucial role in bone health and overall bodily functions. Insulation of the body is not a primary function of the skeletal system but is rather a function of adipose tissue and the integumentary system. Therefore, option A is the correct answer as it does not align with the functions of the skeletal system.
5. A triangular scarf has sides measuring 10cm, 12cm, and 15cm. What is its perimeter?
- A. 27cm
- B. 32cm
- C. 37cm
- D. 45cm
Correct answer: C
Rationale: Simply add the lengths of all sides: perimeter = side1 + side2 + side3 = 10cm + 12cm + 15cm = 37cm.
6. The large intestine absorbs water and electrolytes from digested food material. What waste product remains after water absorption and is eventually eliminated from the body?
- A. Chyme
- B. Bolus
- C. Glucose
- D. Feces
Correct answer: D
Rationale: The large intestine is responsible for absorbing water and electrolytes from digested food material. As the waste material moves through the large intestine, most of the water is absorbed, leaving behind waste products known as feces. Feces consist of indigestible material, bacteria, and some remaining waste products. This waste is eventually eliminated from the body through the process of defecation. Chyme refers to the semi-fluid mass of partially digested food that moves from the stomach to the small intestine. Bolus is a term used to describe a mass of chewed food ready to be swallowed. Glucose is a simple sugar that is absorbed in the small intestine and used as an energy source. Therefore, the correct answer is D: Feces.
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