Nursing Elites

1. Which of the following sentences best serves as the topic sentence in a paragraph about the history of yoga?

• A. The word 'yoga' was mentioned in the Vedas, a collection of texts containing songs, mantras, and rituals used by Vedic priests.
• B. By the late 1800s, yoga masters from India began to travel to the West, attracting followers.
• C. After a few hundred years, yoga masters rejected the teachings of the ancient Vedas and embraced the physical body as the means to achieve enlightenment.
• D. The practice of yoga first developed in the Indus-Sarasvati civilization in Northern India over 5,000 years ago.

Correct answer: D

Rationale: The correct answer is D because it introduces the historical origin of yoga, which is the main focus of the paragraph. This sentence sets the context by providing a foundational understanding of where and when yoga originated. Choice A talks about the mention of yoga in the Vedas but does not provide information about the historical development of yoga itself. Choice B discusses the travel of yoga masters to the West, which is a later development in the history of yoga and not the starting point. Choice C refers to a shift in yoga philosophy without directly addressing its origins, making it less suitable as a topic sentence compared to choice D.

2. What are the moon-shaped white structures at the base of fingernails called?

• A. Lunulae
• B. Cuticle
• C. Hyponychium
• D. Matrix

Correct answer: A

Rationale: The correct answer is A: Lunulae. The moon-shaped white structures at the base of fingernails are known as lunulae. They are most prominent on the thumb and are situated at the base of the nail matrix. The lunula is the visible part of the nail matrix, which is responsible for generating new nail cells. Choice B, Cuticle, is incorrect as it refers to the thin layer of skin at the base of the nail plate. Choice C, Hyponychium, is incorrect as it is the skin that lies beneath the free edge of the nail. Choice D, Matrix, is incorrect as it is the area where the nail is formed, located under the cuticle.

3. Which of the following options is correctly punctuated?

• A. The runaway truck, which had been parked on a steep hill, swerved and teetered before jumping a curb and slamming into a tree.
• B. The runaway truck which had been parked on a steep hill swerved and teetered before jumping a curb and slamming into a tree.
• C. The runaway truck, which had been parked on a steep hill, swerved and teetered before jumping a curb and slamming into a tree.
• D. The runaway truck which had been parked on a steep hill, swerved and teetered before jumping a curb and slamming into a tree.

Correct answer: A

Rationale: The correct answer is A. The sentence correctly uses commas to set off the non-essential clause 'which had been parked on a steep hill.' The use of commas before and after the clause helps to distinguish it as additional information that could be omitted without changing the essential meaning of the sentence. Choices B, C, and D lack appropriate punctuation to set off the non-essential clause, making them incorrect. In these options, the absence of commas or the placement of commas incorrectly within the sentence affects the clarity and structure of the sentence, violating punctuation rules for non-essential clauses.

4. Which statement accurately describes the electron cloud model of the atom?

• A. Electrons precisely orbit the nucleus in defined paths.
• B. Electrons occupy specific energy levels around the nucleus with varying probabilities.
• C. Electrons are clustered tightly within the nucleus.
• D. Electrons move randomly throughout the entire atom.

Correct answer: B

Rationale: The electron cloud model of the atom describes electrons as occupying specific energy levels around the nucleus with varying probabilities. This model does not suggest that electrons precisely orbit in defined paths as stated in option A. It acknowledges the wave-like behavior of electrons and their uncertainty in position, which is not accounted for in options C and D. Option C is incorrect as electrons are not clustered tightly within the nucleus but exist in the space surrounding the nucleus. Option D is incorrect as electrons do not move randomly throughout the entire atom but have specific probabilities of being found in different regions based on their energy levels. Therefore, option B is the most accurate description of the electron cloud model of the atom.

5. What macromolecules are formed from amino acids, and what are their roles?

• A. Lipids; store energy
• B. Carbohydrates; provide energy
• C. Proteins; perform various functions like catalysis, transport, and structural support
• D. Nucleic acids; store genetic information

Correct answer: C

Rationale: The correct answer is C. Proteins are macromolecules formed from amino acids and have diverse roles, such as serving as enzymes, transport molecules, and providing structural support. They are essential for catalysis, cellular communication, immune response, and many other functions in living organisms. Choices A, B, and D are incorrect. Lipids are not formed from amino acids but from fatty acids and glycerol, mainly serving as energy storage molecules. Carbohydrates are composed of sugars and provide energy to the body. Nucleic acids, like DNA and RNA, are made up of nucleotides and store genetic information in cells.

Similar Questions