Nursing Elites

1. In a chemical reaction, the total amount of:

• A. Matter remains the same
• B. Matter increases
• C. Matter decreases
• D. Energy remains the same

Correct answer: A

Rationale: The Law of Conservation of Mass states that matter cannot be created or destroyed in a chemical reaction, only rearranged

2. Neon (Ne). Both He and Ne belong to Group 18 (Noble Gases) due to their complete and stable outer electron shells.

• A. Electromagnetism
• B. Gravity
• C. Strong nuclear force
• D. Weak nuclear force

Correct answer: C

Rationale: Strong nuclear force. This incredibly powerful force overcomes the repulsive electrostatic force between protons and binds the nucleus together.

3. A hypothesis should be:

• A. A definitive statement of fact based on existing knowledge.
• B. A testable prediction based on observations and reasoning.
• C. A broad question without any specific direction or focus.
• D. A personal belief or opinion not requiring further investigation.

Correct answer: B

Rationale: Hypotheses guide scientific exploration by providing a framework for testing potential explanations.

4. The pancreas releases a number of digestive enzymes into the small intestine. Which of the following enzymes is NOT produced by the pancreas?

• A. Trypsin (protein digestion)
• B. Amylase (carbohydrate digestion)
• C. Lipase (fat digestion)
• D. Lactase (sugar digestion)

Correct answer: B

Rationale: The correct answer is B: Amylase (carbohydrate digestion). The pancreas produces digestive enzymes that aid in breaking down food components. Trypsin is produced by the pancreas for protein digestion, lipase for fat digestion, and lactase is an enzyme produced in the small intestine for breaking down lactose (sugar). Amylase, on the other hand, is primarily produced in the salivary glands and the pancreas to break down carbohydrates into simple sugars. Therefore, amylase is not a pancreatic enzyme for digestion, making it the correct answer in this question.

5. Scientific findings are constantly evolving. This emphasizes the importance of:

• A. Unquestioning belief in established theories and models.
• B. Dogmatically adhering to the opinions of prominent scientists.
• C. Maintaining an open mind and willingness to consider new evidence.
• D. Prioritizing quick and decisive answers over careful evaluation.

Correct answer: C

Rationale: Science is a dynamic process built on continual questioning and refining of understanding. Openness to new evidence and revision of existing theories is crucial for scientific progress.

6. Which state of matter has particles that are highly organized in a fixed pattern and vibrate in place?

• A. Solid
• B. Liquid
• C. Gas
• D. Plasma

Correct answer: a

Rationale: In solids, particles are tightly packed in an ordered arrangement and vibrate around fixed positions, giving solids a definite shape and volume.

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