Nursing Elites

1. Which organelle is responsible for packaging and secreting proteins into the extracellular space?

• A. Golgi apparatus
• B. Mitochondria
• C. Ribosomes
• D. Endoplasmic reticulum

Correct answer: A

Rationale: A) Golgi apparatus: The Golgi apparatus is responsible for modifying, sorting, and packaging proteins into vesicles for secretion outside the cell or for use within the cell. It acts as a distribution and shipping department for the cell, ensuring proteins are properly processed and sent to their correct destinations like the extracellular space. Golgi apparatus is the correct answer because it directly handles the packaging and secretion of proteins. B) Mitochondria: Mitochondria are known as the powerhouse of the cell and are responsible for generating energy in the form of ATP through cellular respiration. They are not involved in packaging and secreting proteins into the extracellular space. C) Ribosomes: Ribosomes are responsible for protein synthesis, where they translate mRNA into proteins. They are not involved in packaging and secreting proteins into the extracellular space. D) Endoplasmic reticulum: The endoplasmic reticulum (ER) plays a role in protein synthesis and folding, but it is the rough ER specifically that is involved in synthesizing proteins that are then transported to the Golgi apparatus for further processing and packaging. The Golgi apparatus is primarily responsible for packaging and secreting proteins, making it the correct answer for this question.

2. How does the author distinguish between different groups of insects mentioned in the passage?

• A. By describing the specific characteristics and adaptations of each insect group.
• B. By grouping them based on their habitat into aquatic and aerial categories.
• C. By explaining the stages of development each insect undergoes.
• D. By identifying their habitats and the environments they are adapted to.

Correct answer: B

Rationale: The author distinguishes between different groups of insects based on their habitat, categorizing them into aquatic and aerial categories. The passage mentions how some insects spend time under water while others live in the air, emphasizing the distinction between aquatic and aerial habitats. Therefore, choice B is correct. Choices A, C, and D are incorrect because the passage does not focus on describing the specific characteristics, adaptations, stages of development, or environments of the insects, but rather on their habitat and lifestyle.

3. What most likely describes the relationship between the author and Alan?

• A. competitive
• B. formal
• C. friendly
• D. caring

Correct answer: C

Rationale: The most likely description of the relationship between the author and Alan is friendly. The author's message to Alan is filled with warmth, concern, and offers of help, indicating a positive and supportive tone. The use of phrases like 'I just wanted to drop you a quick note' and 'Let me know if you want any special treats' reflect a friendly and amicable relationship. Choices A, B, and D are not as suitable as competitive, formal, or caring relationships do not align as strongly with the friendly and supportive nature of the interaction described in the text.

4. It's really time for me to leave, and yet there are still so many things I'd like to do; next year I think I'll spend an extra week. Which of the following punctuation marks is used incorrectly in the sentence above?

• A. The comma after the word 'think'
• B. The semicolon after the word 'do'
• C. The period at the end of the sentence
• D. The comma after 'and yet'

Correct answer: A

Rationale: The comma after 'think' is unnecessary and incorrect. It should be removed to correct the sentence. The semicolon after 'do' is correct as it separates two independent clauses. The period at the end of the sentence is necessary to indicate the end of the sentence. The comma after 'and yet' is correctly used to separate two independent clauses joined by a coordinating conjunction.

5. Which of the following substances can donate a hydroxide ion (OH-) in solution?

• A. Salt
• B. Base
• C. Neutral compound
• D. Dehydrating agent

Correct answer: B

Rationale: The correct answer is B: Base. A base is a substance that can donate hydroxide ions (OH-) in solution. Bases increase the concentration of hydroxide ions by either accepting protons (H+) or donating hydroxide ions. Salts are ionic compounds made of cations and anions, which do not directly donate hydroxide ions. Neutral compounds do not significantly affect the concentration of hydroxide ions. Dehydrating agents are substances that remove water molecules from other compounds, unrelated to donating hydroxide ions.

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