Nursing Elites

1. What type of lens is thinner at the center than at the edges and causes light rays to diverge?

• A. Convex lens
• B. Concave lens
• C. Diverging lens
• D. Plano-convex lens

Correct answer: B

Rationale: A concave lens is thinner at the center than at the edges, causing light rays to diverge when passing through it. This type of lens is also known as a diverging lens because it causes light rays to spread out. Concave lenses are used in various optical devices to correct vision problems and in scientific instruments to diverge light rays for specific purposes. The other choices are incorrect. A convex lens is thicker at the center and converges light rays, while a plano-convex lens has one flat surface and one convex surface, converging light. Diverging lens is a general term that can refer to concave or plano-concave lenses, but in this context, the specific type being referred to is a concave lens.

2. Which organelle is responsible for the final stages of protein modification and packaging for secretion in animal cells?

• A. Rough endoplasmic reticulum (RER)
• B. Smooth endoplasmic reticulum (SER)
• C. Ribosomes
• D. Golgi apparatus

Correct answer: D

Rationale: The Golgi apparatus is responsible for the final stages of protein modification and packaging for secretion in animal cells. After proteins are synthesized in the rough endoplasmic reticulum (RER), they are transported to the Golgi apparatus for further processing, sorting, and packaging before being sent to their final destination within or outside the cell. The smooth endoplasmic reticulum (SER) is mainly involved in lipid metabolism and detoxification processes, not protein modification. Ribosomes are the cellular organelles responsible for protein synthesis, not the final stages of protein modification and packaging for secretion, which is the role of the Golgi apparatus.

3. Sarah works part-time and earns $12 per hour. If she works 20 hours a week, how much will she have saved in 5 weeks if she spends $50 per week on personal expenses?

• A. $600
• B. $750
• C. $500
• D. $650

Correct answer: C

Rationale: To find out how much Sarah saves in 5 weeks, first calculate her weekly earnings: $12/hour × 20 hours/week = $240/week. Then, subtract her weekly personal expenses from her earnings: $240/week - $50/week = $190/week saved. Over 5 weeks, she will save $190/week × 5 weeks = $950. However, none of the provided answer choices match $950. The closest option is $500, which is likely a mistake in the answer choices. The correct answer should have been $950 based on the calculated savings over 5 weeks.

4. Which of the following prefixes means 'with'?

• A. bio-
• B. per-
• C. con-
• D. trans-

Correct answer: C

Rationale: The correct answer is 'C: con-'. The prefix 'con-' means 'with', indicating being together or having a connection. - 'Bio-' means life or living organisms, not 'with'. - 'Per-' means through or completely, not 'with'. - 'Trans-' means across or beyond, not 'with'. Therefore, 'con-' is the only prefix among the options provided that signifies the meaning 'with'.

5. What event marked the start of Rosa Parks' central role in the Civil Rights Movement?

• A. Her arrest for not giving up her seat.
• B. Her involvement in protests.
• C. She became an advocate for voting rights.
• D. She became a central figure in the Civil Rights Movement.

Correct answer: A

Rationale: Rosa Parks' arrest for not giving up her seat on the bus was the event that marked the start of her central role in the Civil Rights Movement. This act of civil disobedience sparked the Montgomery Bus Boycott and brought national attention to the issue of racial segregation. Choice B is incorrect as her arrest, not just her involvement in protests, was the turning point. Choice C is also incorrect as her advocacy for voting rights came later in her civil rights activism. Choice D is incorrect as the event of her arrest was the beginning of her prominent role, not a consequence of already being a central figure.

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