NLN NEX ADVANCED PRACTICE
EXAMINATION 2026 QUESTIONS AND
ANSWERS
1. Which part of the brain is primarily responsible for regulating homeostasis, including body
temperature and hunger?
A. Hypothalamus
B. Thalamus
C. Cerebellum
D. Medulla Oblongata
Answer: A
Conceptual Explanation: The hypothalamus acts as the body’s smart control coordinating
center, maintaining homeostasis by influencing the autonomic nervous system and
managing hormones.
2. In a redox reaction, the substance that loses electrons is said to be:
A. Oxidized
B. Reduced
,C. Neutralized
D. Sublimated
Answer: A
Conceptual Explanation: According to the OIL RIG mnemonic (Oxidation Is Loss,
Reduction Is Gain), the substance that loses electrons is oxidized.
3. If a patient is prescribed 0.5 grams of a medication and the tablets available are 250 mg
each, how many tablets should be administered?
A. 2 tablets
B. 1 tablet
C. 3 tablets
D. 0.5 tablets
Answer: A
Conceptual Explanation: 0.5 grams is equal to 500 mg. 500 mg divided by 250 mg per
tablet equals 2 tablets.
4. Which of the following terms is a synonym for ‘ephemeral’?
A. Permanent
B. Short-lived
C. Mysterious
, D. Essential
Answer: B
Conceptual Explanation: ‘Ephemeral’ describes something that lasts for a very short time.
5. Which cellular organelle is known as the ‘powerhouse’ because it generates ATP through
aerobic respiration?
A. Lysosome
B. Mitochondrion
C. Ribosome
D. Golgi apparatus
Answer: B
Conceptual Explanation: Mitochondria are responsible for cellular respiration and the
production of ATP, the cell’s energy currency.
6. Solve for x: 4x - 7 = 2x + 13
A. x = 3
B. x = 10
C. x = 5
D. x = 20
Answer: B
EXAMINATION 2026 QUESTIONS AND
ANSWERS
1. Which part of the brain is primarily responsible for regulating homeostasis, including body
temperature and hunger?
A. Hypothalamus
B. Thalamus
C. Cerebellum
D. Medulla Oblongata
Answer: A
Conceptual Explanation: The hypothalamus acts as the body’s smart control coordinating
center, maintaining homeostasis by influencing the autonomic nervous system and
managing hormones.
2. In a redox reaction, the substance that loses electrons is said to be:
A. Oxidized
B. Reduced
,C. Neutralized
D. Sublimated
Answer: A
Conceptual Explanation: According to the OIL RIG mnemonic (Oxidation Is Loss,
Reduction Is Gain), the substance that loses electrons is oxidized.
3. If a patient is prescribed 0.5 grams of a medication and the tablets available are 250 mg
each, how many tablets should be administered?
A. 2 tablets
B. 1 tablet
C. 3 tablets
D. 0.5 tablets
Answer: A
Conceptual Explanation: 0.5 grams is equal to 500 mg. 500 mg divided by 250 mg per
tablet equals 2 tablets.
4. Which of the following terms is a synonym for ‘ephemeral’?
A. Permanent
B. Short-lived
C. Mysterious
, D. Essential
Answer: B
Conceptual Explanation: ‘Ephemeral’ describes something that lasts for a very short time.
5. Which cellular organelle is known as the ‘powerhouse’ because it generates ATP through
aerobic respiration?
A. Lysosome
B. Mitochondrion
C. Ribosome
D. Golgi apparatus
Answer: B
Conceptual Explanation: Mitochondria are responsible for cellular respiration and the
production of ATP, the cell’s energy currency.
6. Solve for x: 4x - 7 = 2x + 13
A. x = 3
B. x = 10
C. x = 5
D. x = 20
Answer: B
