COMPREHENSIVE EXAM QUESTIONS COMPLETE WITH 100%
VERIFIED ANSWERS
Question 1
Which of the following represents the correct sequence of structural
organization in the human body, from simplest to most complex?
A) Tissue → Cell → Organelle → Organ → Organ System → Organism
B) Organelle → Cell → Tissue → Organ → Organ System → Organism
C) Cell → Tissue → Organelle → Organ → Organ System → Organism
D) Organism → Organ System → Organ → Tissue → Cell → Organelle
Correct Answer: B – The structural organization progresses from
chemical level (atoms/molecules) to cellular level (organelles, cells),
then to tissue, organ, organ system, and finally the organism. This
hierarchical arrangement reflects increasing complexity .
Question 2
The directional term meaning "toward the front of the body" is:
A) Dorsal
B) Posterior
C) Ventral
D) Cephalic
,Correct Answer: C – Ventral refers to the belly or front side of the body.
Dorsal refers to the back, posterior also means toward the back, and
cephalic means toward the head .
Question 3
The heart is located in which body cavity?
A) Abdominal cavity
B) Pelvic cavity
C) Thoracic cavity
D) Cranial cavity
Correct Answer: C – The thoracic cavity contains the heart and lungs,
protected by the rib cage. The abdominal cavity contains digestive
organs, the pelvic cavity contains reproductive organs, and the cranial
cavity houses the brain .
Question 4
Which organelle is responsible for ATP production through cellular
respiration?
A) Ribosome
B) Golgi apparatus
C) Mitochondrion
D) Lysosome
Correct Answer: C – Mitochondria are the "powerhouses" of the cell,
generating ATP through aerobic respiration. Ribosomes synthesize
,proteins, the Golgi modifies proteins, and lysosomes digest cellular
waste .
Question 5
The serous membrane that covers the surface of the lungs is called the:
A) Parietal pleura
B) Visceral pleura
C) Parietal peritoneum
D) Visceral peritoneum
Correct Answer: B – The visceral pleura directly covers the lungs, while
the parietal pleura lines the thoracic wall. Parietal peritoneum lines the
abdominal wall, and visceral peritoneum covers abdominal organs .
Question 6
Which type of tissue is characterized by cells tightly packed with little
extracellular matrix and functions in protection, secretion, and
absorption?
A) Connective tissue
B) Muscle tissue
C) Nervous tissue
D) Epithelial tissue
Correct Answer: D – Epithelial tissue forms coverings and linings, with
closely packed cells and minimal matrix. Its functions include
protection, secretion, absorption, and filtration .
, Question 7
A solution with a pH of 7.29 would be classified as:
A) Neutral
B) Acidic
C) Basic
D) Alkaline
Correct Answer: B – A pH below 7.0 is acidic. Normal blood pH ranges
from 7.35 to 7.45, so 7.29 indicates acidosis (acidic condition) .
Question 8
What is the functional unit of the nervous system?
A) Neuroglia
B) Neuron
C) Axon
D) Dendrite
Correct Answer: B – The neuron is the basic functional unit of the
nervous system, responsible for transmitting electrical signals.
Neuroglia are supportive cells, and axons/dendrites are parts of
neurons .
Question 9
Which type of chemical reaction is represented by the equation AB → A
+ B?