HESI A2 BIOLOGY EXAM QUESTIONS & ANSWERS 2026-2027 | LATES… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
HESI A2 Biology Exam
Questions & Answers
2026-2027 | Latest
Verified Review
(Rationales)
Verified Answers Exam Ready With Rationales
56 QUESTIONS
DOCUMENT OVERVIEW
This HESI A2 Biology review document offers 56 verified questions with provided correct
answers and detailed rationales, covering fundamental biological processes. It serves as an
excellent resource for students needing to master core biological concepts for certification
preparation and comprehensive study. The material directly aligns with the needs of those
reviewing for the HESI A2 Biology exam.
CONTENTS
Cellular Respiration & Metabolism Q1–Q14
Cellular Biology & Organelles Q15–Q36
Cell Division & Chromosomes Q37–Q40
Page 1
, Genetics & Molecular Biology Q41–Q48
Biochemical Processes & Transport Q49–Q54
Microscopy Q55–Q56
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 56
which of the following statements is true about the kerbs and calvin cycles?
CORRECT ANSWER
Both result in the production of ATP and NADAH
RATIONALE
The Calvin cycle uses ATP and NADPH produced during the light-dependent reactions (Krebs cycle is
part of cellular respiration, not photosynthesis) to fix carbon dioxide into glucose. Both cycles are
anabolic processes that generate energy-carrying molecules and reducing power.
Q2 QUESTION 2 OF 56
What is the first step in metabolism of food to cellular energy?
CORRECT ANSWER
glycolysis
RATIONALE
Glycolysis is the initial metabolic pathway that breaks down glucose into pyruvate, producing a small
amount of ATP and NADH, thereby initiating cellular energy extraction from carbohydrates. This
universal process serves as the foundational step for both aerobic and anaerobic respiration.
Q3 QUESTION 3 OF 56
What are the site of cellular respiration?
Page 2
, CORRECT ANSWER
mitochondria
RATIONALE
Mitochondria are the primary sites of aerobic cellular respiration, where the Krebs cycle and oxidative
phosphorylation generate the majority of ATP. This organelle's inner membrane contains the electron
transport chain, the key machinery for ATP synthesis.
Q4 QUESTION 4 OF 56
The bird's body and function of wings?
CORRECT ANSWER
hereditary
RATIONALE
The structure and function of a bird's wings are determined by genetic inheritance, dictating the
anatomical adaptations necessary for flight. This underlying principle is the concept of heredity,
which governs the transmission of traits from parents to offspring.
Q5 QUESTION 5 OF 56
The Kerb Cycle is the sequence of reactions by which most living cells general energy during
the process of aerobic respiration; it takes place in the mitochondria?
CORRECT ANSWER
KERB CYCLE
RATIONALE
The question asks to identify the metabolic pathway occurring in mitochondria that generates energy
through aerobic respiration. This pathway is precisely defined as the Krebs cycle, also known as the
citric acid cycle.
Q6 QUESTION 6 OF 56
What kind of cells are in meiosis?
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
HESI A2 Biology Exam
Questions & Answers
2026-2027 | Latest
Verified Review
(Rationales)
Verified Answers Exam Ready With Rationales
56 QUESTIONS
DOCUMENT OVERVIEW
This HESI A2 Biology review document offers 56 verified questions with provided correct
answers and detailed rationales, covering fundamental biological processes. It serves as an
excellent resource for students needing to master core biological concepts for certification
preparation and comprehensive study. The material directly aligns with the needs of those
reviewing for the HESI A2 Biology exam.
CONTENTS
Cellular Respiration & Metabolism Q1–Q14
Cellular Biology & Organelles Q15–Q36
Cell Division & Chromosomes Q37–Q40
Page 1
, Genetics & Molecular Biology Q41–Q48
Biochemical Processes & Transport Q49–Q54
Microscopy Q55–Q56
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 56
which of the following statements is true about the kerbs and calvin cycles?
CORRECT ANSWER
Both result in the production of ATP and NADAH
RATIONALE
The Calvin cycle uses ATP and NADPH produced during the light-dependent reactions (Krebs cycle is
part of cellular respiration, not photosynthesis) to fix carbon dioxide into glucose. Both cycles are
anabolic processes that generate energy-carrying molecules and reducing power.
Q2 QUESTION 2 OF 56
What is the first step in metabolism of food to cellular energy?
CORRECT ANSWER
glycolysis
RATIONALE
Glycolysis is the initial metabolic pathway that breaks down glucose into pyruvate, producing a small
amount of ATP and NADH, thereby initiating cellular energy extraction from carbohydrates. This
universal process serves as the foundational step for both aerobic and anaerobic respiration.
Q3 QUESTION 3 OF 56
What are the site of cellular respiration?
Page 2
, CORRECT ANSWER
mitochondria
RATIONALE
Mitochondria are the primary sites of aerobic cellular respiration, where the Krebs cycle and oxidative
phosphorylation generate the majority of ATP. This organelle's inner membrane contains the electron
transport chain, the key machinery for ATP synthesis.
Q4 QUESTION 4 OF 56
The bird's body and function of wings?
CORRECT ANSWER
hereditary
RATIONALE
The structure and function of a bird's wings are determined by genetic inheritance, dictating the
anatomical adaptations necessary for flight. This underlying principle is the concept of heredity,
which governs the transmission of traits from parents to offspring.
Q5 QUESTION 5 OF 56
The Kerb Cycle is the sequence of reactions by which most living cells general energy during
the process of aerobic respiration; it takes place in the mitochondria?
CORRECT ANSWER
KERB CYCLE
RATIONALE
The question asks to identify the metabolic pathway occurring in mitochondria that generates energy
through aerobic respiration. This pathway is precisely defined as the Krebs cycle, also known as the
citric acid cycle.
Q6 QUESTION 6 OF 56
What kind of cells are in meiosis?
Page 3
