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Nursing Elites

ATI TEAS 7

Chemistry

1. What is the periodic table?

Correct answer: B

Rationale: The periodic table is a tabular arrangement of the chemical elements, organized on the basis of their atomic number, electron configurations, and recurring chemical properties. Elements are arranged in rows (periods) and columns (groups) with similar properties. The elements are listed in order of increasing atomic number, which is the number of protons in the nucleus of an atom. This arrangement reveals a periodic repetition of chemical properties, which is the basis of the periodic law.

2. The scientist discovered a new species of butterfly in the rainforest. What is the past tense of the verb "discover"?

Correct answer: B

Rationale: The past tense of a verb describes an action that happened in the past.

3. Identify the relative clause in the sentence "The book that won the award was a bestseller."

Correct answer: B

Rationale: The relative clause "that won the award" provides additional information about the specific book.

4. The spleen, an organ associated with the lymphatic system, plays a crucial role in:

Correct answer: B

Rationale: The correct answer is B: 'Filtering blood and destroying old red blood cells.' The spleen is part of the lymphatic system and acts as a blood filter, removing old or damaged red blood cells and helping to fight infections. It does not play a role in regulating blood sugar levels (A), producing digestive enzymes (C), or secreting hormones (D). Understanding the function of the spleen in filtering blood and removing old red blood cells is crucial for grasping its role in maintaining overall health and immunity.

5. The Merkel cells, located in the epidermis, are specialized for:

Correct answer: C

Rationale: The correct answer is C: 'Touch perception.' Merkel cells, also known as Merkel discs, are found in the skin's epidermal layer and are responsible for sensing touch. These cells are located near nerve endings and help detect light touch and pressure on the skin. They play a crucial role in the perception of tactile sensations and are not involved in melanin production, temperature sensation, or immune defense. Therefore, the specialized function of Merkel cells is primarily related to touch perception, making option C the correct choice.

6. Which sentence uses the possessive apostrophe correctly?

Correct answer: B

Rationale: Option b adds the apostrophe and "s" to show ownership of multiple friends.

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