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Nursing Elites

ATI TEAS 7

Chemistry

1. What is the common name for the compound CH₃COOH?

Correct answer: A

Rationale: CH₃COOH is commonly known as acetic acid. The other choices represent different organic acids.

2. What property of a substance remains constant regardless of its location in the universe?

Correct answer: a

Rationale: Mass is an intrinsic property of matter that remains constant regardless of its location in the universe.

3. What is the difference between alpha decay and beta decay?

Correct answer: B

Rationale: Alpha decay releases a helium nucleus (2 protons, 2 neutrons), while beta decay releases an electron or positron. - Both processes alter the atomic structure and change the element's identity.

4. What is the structure that attaches to each chromosome during mitosis?

Correct answer: A

Rationale: Rationale: The centromere is the structure that attaches to each chromosome during mitosis. It is a region of the chromosome where the two sister chromatids are held together and where the spindle fibers attach during cell division. The centromere plays a crucial role in ensuring that each daughter cell receives the correct number of chromosomes during cell division. Telomeres are structures found at the ends of chromosomes that protect them from deterioration and fusion with neighboring chromosomes. The spindle apparatus is a structure made of microtubules that helps separate chromosomes during cell division. The nucleolus is a region within the nucleus where ribosomal RNA synthesis occurs and is not directly involved in chromosome attachment during mitosis.

5. Which factor affects the kinetic energy of an object the most?

Correct answer:

Rationale: Kinetic energy is directly proportional to the square of an object's velocity.

6. Bile, a yellowish-green fluid, is stored in the gallbladder and released into the small intestine during digestion. What is the primary function of bile in digestion?

Correct answer: C

Rationale: The primary function of bile in digestion is to emulsify fats. Bile contains bile salts that help break down large fat globules into smaller droplets, which increases the surface area for enzymes to work on and aids in the absorption of fats in the small intestine. This process is essential for the digestion and absorption of dietary fats. Bile does not directly break down carbohydrates or proteins, and it is not involved in neutralizing stomach acid, making option C the correct answer.

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