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 Practice Questions Chamberlain
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 Practice Questions
Chamberlain
TOTAL QUESTIONS 196 Questions FORMAT Multiple Choice — Select the
Single Best Answer
EXAMINATION INSTRUCTIONS
▸ 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 comprehensive review covers all HESI A2 biology content.
, SECTION I — BIOLOGY: CELLS, GENETICS, METABOLISM
Questions 1 – 196
& MORE
1. Which organelle is responsible for protein synthesis?
A. Ribosome
B. Mitochondrion
C. Golgi apparatus
D. Lysosome
CORRECT ANSWER A — Ribosome
RATIONALE Ribosomes are the organelles responsible for protein synthesis. They read the
RNA produced in the nucleus and translate genetic instructions to produce
proteins. Ribosomes can be found attached to the endoplasmic reticulum (bound
ribosomes) or free in the cytoplasm.
2. Why is yeast used to make bread rise?
A. Yeast carries out fermentation, producing ethanol and carbon dioxide
B. Yeast carries out photosynthesis, producing oxygen
C. Yeast produces lactic acid
D. Yeast produces nitrogen gas
CORRECT ANSWER A — Yeast carries out fermentation, producing ethanol and carbon dioxide
RATIONALE Yeast is used to make bread rise because it carries out fermentation, producing
carbon dioxide gas and ethanol. The carbon dioxide gas gets trapped in the
dough, causing it to rise and creating the light, airy texture of bread.
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 Practice Questions Chamberlain
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 Practice Questions
Chamberlain
TOTAL QUESTIONS 196 Questions FORMAT Multiple Choice — Select the
Single Best Answer
EXAMINATION INSTRUCTIONS
▸ 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 comprehensive review covers all HESI A2 biology content.
, SECTION I — BIOLOGY: CELLS, GENETICS, METABOLISM
Questions 1 – 196
& MORE
1. Which organelle is responsible for protein synthesis?
A. Ribosome
B. Mitochondrion
C. Golgi apparatus
D. Lysosome
CORRECT ANSWER A — Ribosome
RATIONALE Ribosomes are the organelles responsible for protein synthesis. They read the
RNA produced in the nucleus and translate genetic instructions to produce
proteins. Ribosomes can be found attached to the endoplasmic reticulum (bound
ribosomes) or free in the cytoplasm.
2. Why is yeast used to make bread rise?
A. Yeast carries out fermentation, producing ethanol and carbon dioxide
B. Yeast carries out photosynthesis, producing oxygen
C. Yeast produces lactic acid
D. Yeast produces nitrogen gas
CORRECT ANSWER A — Yeast carries out fermentation, producing ethanol and carbon dioxide
RATIONALE Yeast is used to make bread rise because it carries out fermentation, producing
carbon dioxide gas and ethanol. The carbon dioxide gas gets trapped in the
dough, causing it to rise and creating the light, airy texture of bread.
