HESI A2 Entrance Exam
Complete Study Guide
Actual Exam 2026/2027 –
Complete Exam-Style
Questions | 100% Verified –
Pass Guaranteed – A+
Graded
SECTION 1: READING COMPREHENSION (Questions 1-15)
Passage 1 (Questions 1-3)
The human circulatory system is responsible for transporting oxygen,
nutrients, hormones, and cellular waste products throughout the body.
The heart, a four-chambered muscular organ, pumps blood through a
network of arteries, veins, and capillaries. The right side of the heart
pumps deoxygenated blood to the lungs for oxygenation, while the left
side pumps oxygenated blood to the rest of the body. This dual-circuit
system ensures efficient delivery of oxygen and removal of carbon
dioxide.
,Q1. According to the passage, what is the primary function of the right
side of the heart?
A. Pump oxygenated blood to the body
B. Pump deoxygenated blood to the lungs
C. Receive blood from the body
D. Filter cellular waste products
Answer: B
Rationale: The passage explicitly states, "The right side of the heart
pumps deoxygenated blood to the lungs for oxygenation." The other
options are not supported .
Q2. The word "deoxygenated" as used in the passage most nearly
means:
A. Rich in oxygen
B. Lacking oxygen
C. Containing nutrients
D. Filled with carbon dioxide
Answer: B
Rationale: "Deoxygenated" means blood that has had its oxygen
removed (lacking oxygen), having delivered it to tissues .
Q3. Which of the following can be inferred from the passage?
A. The heart has three chambers
B. The circulatory system only transports oxygen
, C. The circulatory system is a dual-circuit system
D. Veins carry oxygenated blood
Answer: C
Rationale: The passage states, "This dual-circuit system ensures
efficient delivery of oxygen." The heart has four (not three) chambers .
Passage 2 (Questions 4-6)
Bacteria are single-celled microorganisms that lack a nucleus and
membrane-bound organelles. They reproduce by binary fission, a
process in which one cell divides into two identical daughter cells. While
many bacteria are harmless or beneficial, pathogenic bacteria can
cause diseases such as strep throat, tuberculosis, and urinary tract
infections. Antibiotics are used to treat bacterial infections by
interfering with cell wall synthesis, protein synthesis, or DNA replication.
Q4. The author's purpose in writing this passage is to:
A. Describe viral replication
B. Explain basic characteristics of bacteria
C. Compare bacteria and viruses
D. Discuss antibiotic resistance
Answer: B
Rationale: The passage focuses on bacterial characteristics (unicellular,
no nucleus, binary fission, pathogenic examples) and antibiotic
mechanisms .
Q5. Which statement is NOT supported by the passage?
Complete Study Guide
Actual Exam 2026/2027 –
Complete Exam-Style
Questions | 100% Verified –
Pass Guaranteed – A+
Graded
SECTION 1: READING COMPREHENSION (Questions 1-15)
Passage 1 (Questions 1-3)
The human circulatory system is responsible for transporting oxygen,
nutrients, hormones, and cellular waste products throughout the body.
The heart, a four-chambered muscular organ, pumps blood through a
network of arteries, veins, and capillaries. The right side of the heart
pumps deoxygenated blood to the lungs for oxygenation, while the left
side pumps oxygenated blood to the rest of the body. This dual-circuit
system ensures efficient delivery of oxygen and removal of carbon
dioxide.
,Q1. According to the passage, what is the primary function of the right
side of the heart?
A. Pump oxygenated blood to the body
B. Pump deoxygenated blood to the lungs
C. Receive blood from the body
D. Filter cellular waste products
Answer: B
Rationale: The passage explicitly states, "The right side of the heart
pumps deoxygenated blood to the lungs for oxygenation." The other
options are not supported .
Q2. The word "deoxygenated" as used in the passage most nearly
means:
A. Rich in oxygen
B. Lacking oxygen
C. Containing nutrients
D. Filled with carbon dioxide
Answer: B
Rationale: "Deoxygenated" means blood that has had its oxygen
removed (lacking oxygen), having delivered it to tissues .
Q3. Which of the following can be inferred from the passage?
A. The heart has three chambers
B. The circulatory system only transports oxygen
, C. The circulatory system is a dual-circuit system
D. Veins carry oxygenated blood
Answer: C
Rationale: The passage states, "This dual-circuit system ensures
efficient delivery of oxygen." The heart has four (not three) chambers .
Passage 2 (Questions 4-6)
Bacteria are single-celled microorganisms that lack a nucleus and
membrane-bound organelles. They reproduce by binary fission, a
process in which one cell divides into two identical daughter cells. While
many bacteria are harmless or beneficial, pathogenic bacteria can
cause diseases such as strep throat, tuberculosis, and urinary tract
infections. Antibiotics are used to treat bacterial infections by
interfering with cell wall synthesis, protein synthesis, or DNA replication.
Q4. The author's purpose in writing this passage is to:
A. Describe viral replication
B. Explain basic characteristics of bacteria
C. Compare bacteria and viruses
D. Discuss antibiotic resistance
Answer: B
Rationale: The passage focuses on bacterial characteristics (unicellular,
no nucleus, binary fission, pathogenic examples) and antibiotic
mechanisms .
Q5. Which statement is NOT supported by the passage?
