ATI TEAS 7
Anatomy
1. The gland located on top of the kidneys responsible for regulating blood pressure and electrolyte balance is the:
- A. Thyroid gland
- B. Pituitary gland
- C. Adrenal gland
- D. Parathyroid gland
Correct answer: D
Rationale: The correct answer is C: Adrenal gland. The adrenal glands are located on top of the kidneys and play a crucial role in regulating blood pressure and electrolyte balance by secreting hormones such as aldosterone and cortisol. The thyroid gland (A) regulates metabolism, the pituitary gland (B) controls other endocrine glands, and the parathyroid gland (D) regulates calcium levels in the blood. Therefore, the adrenal gland is specifically responsible for the functions mentioned in the question, making it the correct choice.
2. What is the common name for the compound CH₃COOH?
- A. Acetic acid
- B. Formic acid
- C. Butyric acid
- D. Propionic acid
Correct answer: A
Rationale: CH₃COOH is commonly known as acetic acid. The other choices represent different organic acids.
3. How many amino acids can make up a protein?
- A. 10-20
- B. 50-100
- C. 100-500
- D. 1000+
Correct answer: A
Rationale: Rationale: Proteins are made up of long chains of amino acids. There are 20 standard amino acids that are commonly found in proteins. The sequence and arrangement of these amino acids determine the structure and function of a protein. While proteins can vary in size and complexity, the number of amino acids typically ranges from around 10 to 20 in smaller proteins to hundreds or even thousands in larger proteins. Therefore, the range of 10-20 amino acids is the most accurate representation of the number of amino acids that can make up a protein.
4. 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.
5. Identify the subject in the following sentence: "The red car parked in the driveway."
- A. driveway
- B. red
- C. car
- D. the
Correct answer: C
Rationale: The subject is the noun or pronoun performing the action or being described in the sentence.
6. Which type of energy is possessed by an object in motion?
- A. Potential energy
- B. Kinetic energy
- C. Thermal energy
- D. Chemical energy
Correct answer: b
Rationale: Kinetic energy is the energy possessed by an object in motion.
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