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Nursing Elites

ATI TEAS 7

Anatomy

1. How can you differentiate between a bacterial and viral infection based solely on symptoms?

Correct answer: B

Rationale: Option B is the correct answer because bacterial infections are typically treated with antibiotics, while viral infections do not respond to antibiotics. This is a key differentiating factor between the two types of infections. While some symptoms may overlap between bacterial and viral infections, the response to antibiotic treatment is a reliable indicator. It's important to note that solely relying on symptoms to differentiate between bacterial and viral infections can be challenging since many symptoms can be similar. Therefore, the response to antibiotics is a more definitive way to distinguish between the two types of infections.

2. The number of protons in an atom determines its:

Correct answer: B

Rationale: The atomic number (Z) equals the number of protons and defines an element's core identity.

3. What potential consequences can chromosomal nondisjunction have on offspring?

Correct answer: D

Rationale: Rationale: - Chromosomal nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division, leading to an abnormal number of chromosomes in the resulting cells. - Down syndrome is caused by an extra copy of chromosome 21, resulting from nondisjunction during meiosis. Individuals with Down syndrome have three copies of chromosome 21 instead of the usual two. - Turner syndrome is characterized by the absence of one X chromosome in females, leading to a variety of physical and developmental features. - Klinefelter syndrome features one or more extra X chromosomes in males, typically resulting in infertility and other physical characteristics. Therefore, chromosomal nondisjunction can lead to various genetic disorders such as Down syndrome, Turner syndrome, and Klinefelter syndrome, making option D the correct answer.

4. What is the Doppler effect, and how does it explain the shift in frequency of sound waves perceived by an observer?

Correct answer: C

Rationale: The Doppler effect describes how the perceived frequency of a wave changes depending on the relative motion between the source and observer. For example, an approaching siren sounds higher pitched due to compressed wavefronts, while a receding siren sounds lower due to stretched wavefronts.

5. Imagine you have an element with atomic number 11 and mass number 23. How many neutrons does it have?

Correct answer: B

Rationale: Rationale: - The atomic number (Z) of an element is the number of protons in its nucleus. In this case, the element has an atomic number of 11. - The mass number (A) of an element is the sum of its protons and neutrons. Given that the mass number is 23 and the atomic number is 11, we can calculate the number of neutrons by subtracting the atomic number from the mass number: Neutrons = Mass number - Atomic number = 23 - 11 = 12. - Therefore, the element with atomic number 11 and mass number 23 has 12 neutrons.

6. The property of a substance that resists a change in its shape is called:

Correct answer: D

Rationale: Elasticity - This refers to a material's ability to resist deformation and return to its original shape after stress is applied. Density, mass, and inertia are related to the substance itself, while viscosity reflects resistance to flow, not shape change.

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