Nursing Elites

1. Which is the correct order of formed elements in blood from smallest to largest cell size?

• A. Erythrocytes, thrombocytes, and leukocytes
• B. Thrombocytes, leukocytes, and erythrocytes
• C. Thrombocytes, erythrocytes, and leukocytes
• D. Leukocytes, erythrocytes, and thrombocytes

Correct answer: C

Rationale: The correct order of formed elements in blood from smallest to largest cell size is thrombocytes (platelets), erythrocytes (red blood cells), and leukocytes (white blood cells), making choice C the correct answer. Thrombocytes are the smallest, followed by erythrocytes, and then leukocytes. Choices A, B, and D are incorrect because they do not follow the correct order of cell size in blood formed elements.

2. Which of the following describes the difference between prokaryotic and eukaryotic cells?

• A. Prokaryotic cells have a nucleus, while eukaryotic cells don't.
• B. Eukaryotic cells are simpler in structure than prokaryotic cells.
• C. Prokaryotic cells have membrane-bound organelles, while eukaryotic cells don't.
• D. Eukaryotic cells have a true nucleus and membrane-bound organelles, while prokaryotic cells lack these.

Correct answer: D

Rationale: Eukaryotic cells have a true nucleus that contains the genetic material, while prokaryotic cells lack a true nucleus. Eukaryotic cells also have membrane-bound organelles such as mitochondria, endoplasmic reticulum, and Golgi apparatus, which are absent in prokaryotic cells.

3. Choose the sentence that demonstrates correct use of the semicolon.

• A. I have a test tomorrow; I need to study.
• B. I have a test; tomorrow I need to study.
• C. I have a test tomorrow.
• D. I have a test tomorrow; and I need to study.

Correct answer: A

Rationale: The correct use of a semicolon is demonstrated in sentence A: 'I have a test tomorrow; I need to study.' Semicolons are used to connect closely related independent clauses. In this sentence, the semicolon correctly separates the two independent clauses 'I have a test tomorrow' and 'I need to study.' Choice B is incorrect because it separates the clauses improperly by using the semicolon after 'test' instead of after 'tomorrow.' Choice C is incorrect as it lacks a second independent clause to be connected using a semicolon. Choice D is incorrect as it inappropriately adds 'and' after the semicolon, which disrupts the correct use of the punctuation mark to link independent clauses.

4. In a study of the average weight of babies at different time intervals after birth, the babies’ measured weight is which of the following variables?

• A. Independent
• B. Control
• C. Dependent
• D. Constant

Correct answer: C

Rationale: The baby's measured weight is the dependent variable as it depends on the time intervals.

5. What does the prefix poly- mean in the word polygon?

• A. Few
• B. Several
• C. None
• D. Many

Correct answer: D

Rationale: The correct answer is D: 'Many.' The prefix poly- comes from the Greek word 'polus,' which means 'many.' Therefore, in the word polygon, poly- indicates a shape with many sides. Choices A, B, and C are incorrect because the prefix poly- does not mean 'few,' 'several,' or 'none,' but rather 'many.'

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