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Nursing Elites

ATI TEAS 7

Chemistry

1. Which of the following is the positively charged subatomic particle found in the nucleus of an atom?

Correct answer: B

Rationale: Protons are positively charged subatomic particles found in the nucleus of an atom. They have a mass of approximately 1 atomic mass unit (amu) and a charge of +1. The number of protons in an atom's nucleus determines the atomic number of the element, which is a unique identifier for each element.

2. Which sentence uses strong verbs to create a more vivid image?

Correct answer: C

Rationale: "Inched" creates a stronger image of the car's slow movement compared to "moved" or "drove."

3. Which word is misspelled?

Correct answer: D

Rationale: "Indelible" is spelled correctly, while "circumstance" should be "circumstance."

4. The defining characteristic of an element is determined by the number of:

Correct answer: C

Rationale: The correct answer is C: 'Protons in its nucleus.' An element is defined by the number of protons in its nucleus, known as the atomic number. This number determines the element's identity and its placement on the periodic table. Neutrons and electrons play important roles in an atom, but they do not define the element itself. Neutrons contribute to the atom's mass, while electrons are involved in chemical reactions and bonding. Therefore, the number of protons is the defining characteristic of an element.

5. Which of the following is a unit of measurement for energy?

Correct answer: b

Rationale: Energy is measured in Joules (J) in the SI unit system.

6. Which structure in the respiratory system is responsible for preventing food and liquids from entering the trachea during swallowing?

Correct answer: B

Rationale: The correct answer is B: Larynx. The larynx, also known as the voice box, is a crucial structure in the respiratory system responsible for preventing food and liquids from entering the trachea during swallowing. It contains the epiglottis, a flap of tissue that covers the trachea during swallowing to ensure that food and liquids are directed to the esophagus instead of entering the airway. The bronchi are the two main branches that carry air into the lungs, while alveoli are tiny air sacs where gas exchange occurs. The pharynx is a shared pathway for both air and food, located behind the oral and nasal cavities. Therefore, the larynx plays a vital role in protecting the respiratory system during swallowing.

Similar Questions

Which structure in the respiratory system is responsible for preventing food and liquids from entering the trachea during swallowing?
The small intestine is where most of the chemical digestion and nutrient absorption occur. What is the finger-like projection in the small intestine that increases its surface area for absorption?
What is the stage of mitosis during which the nuclear envelope reforms?
Tissues are groups of cells with similar:
Which division of the autonomic nervous system is responsible for the "rest and digest" response, promoting relaxation and conservation of energy?
Define "acceleration" in terms of motion.

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