NLN NEX ACTUAL EXAM TEST BANK
QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE 2027
1. Which of the following cellular organelles is primarily responsible for the synthesis of lipids
and the detoxification of harmful substances?
A. Rough Endoplasmic Reticulum
B. Lysosomes
C. Golgi Apparatus
D. Smooth Endoplasmic Reticulum
Answer: D
Conceptual Explanation: The Smooth Endoplasmic Reticulum is responsible for lipid
synthesis and detoxification, while the Rough ER is primarily involved in protein synthesis
due to its ribosomes.
2. In the human circulatory system, which vessel carries deoxygenated blood from the upper
body to the right atrium?
A. Superior Vena Cava
,B. Inferior Vena Cava
C. Pulmonary Vein
D. Aorta
Answer: A
Conceptual Explanation: The Superior Vena Cava returns deoxygenated blood from the
head, neck, and upper limbs to the right atrium.
3. A patient is prescribed 0.75 mg of a drug. The available tablets are 250 mcg each. How
many tablets should the patient receive?
A. 1.5 tablets
B. 2 tablets
C. 3 tablets
D. 4 tablets
Answer: C
Conceptual Explanation: 0.75 mg is equivalent to 750 mcg. 750 mcg divided by 250 mcg
per tablet equals 3 tablets.
4. Choose the word that is most nearly opposite in meaning to ‘Ephemeral’.
A. Fleeting
B. Perpetual
, C. Transient
D. Incidental
Answer: B
Conceptual Explanation: Ephemeral means lasting for a very short time; perpetual means
never-ending or changing, which is the opposite.
5. Which type of chemical bond involves the complete transfer of electrons from one atom to
another, resulting in the attraction between oppositely charged ions?
A. Ionic Bond
B. Hydrogen Bond
C. Covalent Bond
D. Metallic Bond
Answer: A
Conceptual Explanation: An ionic bond is formed through the electrostatic attraction
between two oppositely charged ions, usually formed by the transfer of electrons.
6. Which part of the brain is primarily responsible for regulating vital functions such as
breathing, heart rate, and blood pressure?
A. Medulla Oblongata
B. Cerebellum
C. Cerebrum
QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE 2027
1. Which of the following cellular organelles is primarily responsible for the synthesis of lipids
and the detoxification of harmful substances?
A. Rough Endoplasmic Reticulum
B. Lysosomes
C. Golgi Apparatus
D. Smooth Endoplasmic Reticulum
Answer: D
Conceptual Explanation: The Smooth Endoplasmic Reticulum is responsible for lipid
synthesis and detoxification, while the Rough ER is primarily involved in protein synthesis
due to its ribosomes.
2. In the human circulatory system, which vessel carries deoxygenated blood from the upper
body to the right atrium?
A. Superior Vena Cava
,B. Inferior Vena Cava
C. Pulmonary Vein
D. Aorta
Answer: A
Conceptual Explanation: The Superior Vena Cava returns deoxygenated blood from the
head, neck, and upper limbs to the right atrium.
3. A patient is prescribed 0.75 mg of a drug. The available tablets are 250 mcg each. How
many tablets should the patient receive?
A. 1.5 tablets
B. 2 tablets
C. 3 tablets
D. 4 tablets
Answer: C
Conceptual Explanation: 0.75 mg is equivalent to 750 mcg. 750 mcg divided by 250 mcg
per tablet equals 3 tablets.
4. Choose the word that is most nearly opposite in meaning to ‘Ephemeral’.
A. Fleeting
B. Perpetual
, C. Transient
D. Incidental
Answer: B
Conceptual Explanation: Ephemeral means lasting for a very short time; perpetual means
never-ending or changing, which is the opposite.
5. Which type of chemical bond involves the complete transfer of electrons from one atom to
another, resulting in the attraction between oppositely charged ions?
A. Ionic Bond
B. Hydrogen Bond
C. Covalent Bond
D. Metallic Bond
Answer: A
Conceptual Explanation: An ionic bond is formed through the electrostatic attraction
between two oppositely charged ions, usually formed by the transfer of electrons.
6. Which part of the brain is primarily responsible for regulating vital functions such as
breathing, heart rate, and blood pressure?
A. Medulla Oblongata
B. Cerebellum
C. Cerebrum
