ATI TEAS 7
Chemistry
1. What is the name for the smallest amount of an element that can exist independently and retain its chemical properties?
- A. Molecule
- B. Atom
- C. Compound
- D. Mixture
Correct answer: A
Rationale: An atom is the fundamental building block of an element, consisting of a nucleus and electrons.
2. Which of the following blood vessels carries oxygenated blood away from the lungs?
- A. Pulmonary artery
- B. Aorta
- C. Superior vena cava
- D. Inferior vena cava
Correct answer: B
Rationale: The correct answer is B: Aorta. The aorta is the main artery in the body that carries oxygenated blood away from the heart to the rest of the body. The pulmonary artery, option A, carries deoxygenated blood from the heart to the lungs for oxygenation. The superior vena cava, option C, and inferior vena cava, option D, are veins that carry deoxygenated blood from the upper and lower parts of the body, respectively, back to the heart. Therefore, the aorta is the blood vessel that carries oxygenated blood away from the lungs.
3. What property of a substance remains constant regardless of changes in its location in the universe?
- A. Mass
- B. Weight
- C. Density
- D. Volume
Correct answer: a
Rationale: Mass is an intrinsic property of matter and remains constant regardless of its location.
4. What part of speech is the underlined word in the sentence "The students eagerly awaited the results"?
- A. Verb
- B. Noun
- C. Adjective
- D. Adverb
Correct answer: B
Rationale: Option B identifies "results" as the direct object of the verb "awaited," making it a noun.
5. What figure of speech is used in the statement "His words were a dagger to my heart"?
- A. Metonymy
- B. Simile
- C. Metaphor (Correct)
- D. Hyperbole
Correct answer: C
Rationale: The statement compares the pain of his words to a physical object, forming a metaphor.
6. What is the name of the master gland that regulates the function of many other endocrine glands?
- A. Thyroid gland
- B. Pituitary gland
- C. Hypothalamus
- D. Adrenal gland
Correct answer: B
Rationale: The correct answer is B: Pituitary gland. The pituitary gland is often referred to as the 'master gland' because it plays a crucial role in regulating the function of many other endocrine glands in the body. It secretes hormones that control various processes such as growth, metabolism, and reproduction. The thyroid gland (A) primarily regulates metabolism, the hypothalamus (C) helps control the pituitary gland, and the adrenal gland (D) produces hormones involved in stress response. Therefore, the pituitary gland is the main gland responsible for coordinating the activities of other endocrine glands, earning it the title of the master gland.
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