Chamberlain University
OIB · 2A ISEH
★ ★
College of Nursing & Public Health
C
A C A D E M I C E X C E L L E N C E · I N N O V AT I O N · I N T E G R I T Y · W O R L D C L A S S
EST. 1889
SERVICE
Hesi A2 Biology — Continued (Questions 81-369)
B I O LO G Y — CO M P R E H E N S I V E R E V I E W
INSTITUTION Chamberlain University PROGRAM Pre-Nursing / Allied Health
COURSE CODE HESI A2 COURSE TITLE Biology
ACADEMIC YEAR EXAM TITLE Hesi A2 Biology
TOTAL QUESTIONS 369 Questions (Continued from FORMAT Multiple Choice — Select the
Q81) Single Best Answer
EXAMINATION INSTRUCTIONS — CONTINUED
▸ Select the single best answer for each biology question.
▸ Topics include cell biology, genetics, metabolism, and plant biology.
▸ Focus on understanding key concepts and processes.
▸ Correct answers and rationales appear below each question.
▸ This is a continuation of the comprehensive HESI A2 biology review.
, SECTION I — BIOLOGY: CELLS, GENETICS, METABOLISM
Questions 81 – 369
& MORE (CONTINUED)
81. The diffusion of water through a semipermeable membrane is known as?
A. Osmosis
B. Diffusion
C. Active transport
D. Facilitated diffusion
CORRECT ANSWER A — Osmosis
RATIONALE Osmosis is the diffusion of water through a semipermeable membrane. It is the
movement of water from an area of high water concentration to low water
concentration.
82. The process in which carbon dioxide and water are combined under the influence of light
in green plants is called?
A. Photosynthesis
B. Cellular respiration
C. Fermentation
D. Glycolysis
CORRECT ANSWER A — Photosynthesis
RATIONALE Photosynthesis is the process in which carbon dioxide and water are combined
under the influence of light in green plants to produce glucose and oxygen. This is
the fundamental energy-capturing process for most life on Earth.
, 83. A protein substance that initiates and accelerates a chemical reaction is called?
A. Enzyme
B. Hormone
C. Vitamin
D. Mineral
CORRECT ANSWER A — Enzyme
RATIONALE An enzyme is a protein substance that initiates and accelerates chemical reactions
by lowering the activation energy. Enzymes are biological catalysts that are
essential for life.
84. The body's continual response to changes in the external and internal environment is
called?
A. Homeostasis
B. Metabolism
C. Excretion
D. Adaptation
CORRECT ANSWER A — Homeostasis
RATIONALE Homeostasis is the body's continual response to changes in the external and
internal environment to maintain stable internal conditions. It involves feedback
mechanisms that regulate temperature, pH, blood sugar, and other variables.
OIB · 2A ISEH
★ ★
College of Nursing & Public Health
C
A C A D E M I C E X C E L L E N C E · I N N O V AT I O N · I N T E G R I T Y · W O R L D C L A S S
EST. 1889
SERVICE
Hesi A2 Biology — Continued (Questions 81-369)
B I O LO G Y — CO M P R E H E N S I V E R E V I E W
INSTITUTION Chamberlain University PROGRAM Pre-Nursing / Allied Health
COURSE CODE HESI A2 COURSE TITLE Biology
ACADEMIC YEAR EXAM TITLE Hesi A2 Biology
TOTAL QUESTIONS 369 Questions (Continued from FORMAT Multiple Choice — Select the
Q81) Single Best Answer
EXAMINATION INSTRUCTIONS — CONTINUED
▸ Select the single best answer for each biology question.
▸ Topics include cell biology, genetics, metabolism, and plant biology.
▸ Focus on understanding key concepts and processes.
▸ Correct answers and rationales appear below each question.
▸ This is a continuation of the comprehensive HESI A2 biology review.
, SECTION I — BIOLOGY: CELLS, GENETICS, METABOLISM
Questions 81 – 369
& MORE (CONTINUED)
81. The diffusion of water through a semipermeable membrane is known as?
A. Osmosis
B. Diffusion
C. Active transport
D. Facilitated diffusion
CORRECT ANSWER A — Osmosis
RATIONALE Osmosis is the diffusion of water through a semipermeable membrane. It is the
movement of water from an area of high water concentration to low water
concentration.
82. The process in which carbon dioxide and water are combined under the influence of light
in green plants is called?
A. Photosynthesis
B. Cellular respiration
C. Fermentation
D. Glycolysis
CORRECT ANSWER A — Photosynthesis
RATIONALE Photosynthesis is the process in which carbon dioxide and water are combined
under the influence of light in green plants to produce glucose and oxygen. This is
the fundamental energy-capturing process for most life on Earth.
, 83. A protein substance that initiates and accelerates a chemical reaction is called?
A. Enzyme
B. Hormone
C. Vitamin
D. Mineral
CORRECT ANSWER A — Enzyme
RATIONALE An enzyme is a protein substance that initiates and accelerates chemical reactions
by lowering the activation energy. Enzymes are biological catalysts that are
essential for life.
84. The body's continual response to changes in the external and internal environment is
called?
A. Homeostasis
B. Metabolism
C. Excretion
D. Adaptation
CORRECT ANSWER A — Homeostasis
RATIONALE Homeostasis is the body's continual response to changes in the external and
internal environment to maintain stable internal conditions. It involves feedback
mechanisms that regulate temperature, pH, blood sugar, and other variables.
