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Nursing Elites

ATI TEAS 7

physics

1. How is power related to time?

Correct answer: c

Rationale: Power is the rate at which work is done or energy is transferred, and it is not directly linked to time.

2. In a neutral atom, the number of electrons:

Correct answer: A

Rationale: Must be equal to the number of protons - For electrical neutrality, the positive charge of protons must be balanced by the negative charge of an equal number of electrons.

3. The phrase "illuminates not only past events" suggests that history

Correct answer: B

Rationale: The phrase highlights that history goes beyond mere chronology, offering valuable insights and lessons beyond the dates and facts.

4. What is the least common multiple (LCM) of 4 and 6?

Correct answer: B

Rationale: The LCM is the smallest number that is a multiple of both 4 and 6. We can find this by listing out the multiples of each number until we find a common value. In this case, 12 is the first number divisible by both 4 (4 x 3) and 6 (6 x 2).

5. Lysosomes are known as "suicide bags" of the cell. What enzymes do they contain?

Correct answer: A

Rationale: Lysosomes are membrane-bound organelles containing hydrolytic enzymes responsible for breaking down various macromolecules, cellular waste, and foreign substances. These enzymes perform hydrolysis, a process where water molecules are used to break down larger molecules into smaller components. This function earned lysosomes the nickname 'suicide bags' as they can initiate cell death (apoptosis) by releasing their enzymes when needed. Ligases, transferases, and oxidoreductases are enzymes with different functions such as forming bonds, transferring molecules, and catalyzing redox reactions, respectively, which are not typically found in lysosomes. Therefore, the correct answer is A: 'Hydrolytic enzymes.'

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

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