(NI)
Objective Assessment Review (Qns & Ans)
2025
1. What is the primary function of the mitochondria in a cell?
a. Protein synthesis
b. Energy production ( Correct ANS )
c. DNA replication
d. Waste storage
Rationale: Mitochondria are the cell’s powerhouse,
producing ATP through aerobic respiration.
2. Which part of the neuron is responsible for transmitting
signals to other cells?
a. Axon ( Correct ANS )
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, b. Dendrites
c. Cell body
d. Synaptic cleft
Rationale: Axons transmit electrical impulses away from the
cell body to other neurons or target tissues.
3. Which type of joint allows the widest range of motion?
a. Hinge joint
b. Ball-and-socket joint ( Correct ANS )
c. Pivot joint
d. Gliding joint
Rationale: Ball-and-socket joints, like the shoulder and hip,
allow movements in multiple planes, including rotation.
4. Which component of blood is primarily responsible for
clotting?
a. Red blood cells
b. Platelets ( Correct ANS )
c. White blood cells
d. Plasma
Rationale: Platelets play a central role in forming clots and
preventing excessive bleeding.
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Fill-in-the-Blank Questions
5. The __________ is the basic structural and functional unit of
the human body.
ANS: Cell
Rationale: Cells are the smallest units of life, performing
vital functions necessary for survival.
6. The __________ cavity houses the heart and lungs.
ANS: Thoracic
Rationale: The thoracic cavity is part of the ventral body
cavity, containing major organs of respiration and circulation.
7. The __________ system is responsible for maintaining
electrolyte balance and filtering waste from the blood.
ANS: Urinary
Rationale: The urinary system, including the kidneys,
regulates waste removal and maintains homeostasis.
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True/False Questions
8. The skeletal system is responsible for producing blood cells.
ANS: True
Rationale: Bone marrow in certain bones produces red blood
cells, white blood cells, and platelets.
9. The autonomic nervous system controls voluntary
movements.
ANS: False
Rationale: The autonomic nervous system regulates
involuntary functions like heart rate and digestion.
10. Striated muscles are found in the walls of hollow organs.
ANS: False
Rationale: Smooth muscles, not striated muscles, are found in
hollow organs like the stomach and intestines.
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