ATI TEAS 7 BIOLOGY EXAM – QUESTIONS AND ANSWERS | VERIFIED AND
WELL DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS |
LATEST EXAM UPDATE
*Core Domains*
*Cellular Biology*
*Molecular Biology*
*Genetics and Heredity*
*Biological Classification*
*Anatomy and Physiology*
*Scientific Reasoning*
*Microbiology*
*Evolution and Natural Selection*
*Introduction*
The ATI TEAS 7 Biology Exam is a comprehensive assessment designed to evaluate
a candidate's foundational knowledge and readiness for entry-level nursing and allied
health programs. The exam focuses on essential biological concepts, including
cellular processes, genetics, and human anatomy, which are critical for clinical
success. This assessment utilizes a multiple-choice and scenario-based structure to
,measure not only rote memorization but also the ability to apply scientific principles to
real-world medical situations. Emphasis is placed on critical thinking, ethical scientific
conduct, and decision-making skills necessary for high-stakes healthcare
environments, ensuring practitioners possess a robust understanding of the biological
sciences.
SECTION ONE: QUESTIONS 1–100
1. Which of the following organelles is responsible for the synthesis of ATP through
cellular respiration?
A. Ribosome
B. Lysosome
C. Mitochondria
D. Golgi apparatus
🟢 C. Mitochondria
🔴 Explanation: Mitochondria are known as the powerhouse of the cell because they
convert biochemical energy from nutrients into adenosine triphosphate (ATP) via
aerobic respiration.
2. In a DNA molecule, which nitrogenous base always pairs with Cytosine?
,A. Adenine
B. Guanine
C. Thymine
D. Uracil
🟢 B. Guanine
🔴 Explanation: According to Chargaff's rules of base pairing, Guanine always forms
three hydrogen bonds with Cytosine in a DNA double helix.
3. Which phase of mitosis involves the alignment of chromosomes along the
equatorial plate of the cell?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
🟢 B. Metaphase
🔴 Explanation: During metaphase, spindle fibers pull the chromosomes until they
are perfectly aligned in the center of the cell, known as the metaphase plate.
, 4. A researcher is studying the ethical implications of CRISPR gene editing in
human embryos. Which regulatory principle is most concerned with the long-
term effects on the human gene pool?
A. Informed consent
B. Justice
C. Non-maleficence
D. Beneficence
🟢 C. Non-maleficence
🔴 Explanation: Non-maleficence refers to the duty to "do no harm." In genetics, this
involves assessing the risk of unintended mutations or long-term negative
consequences for future generations.
5. Which of the following is a characteristic of a prokaryotic cell?
A. Presence of a nucleus
B. Membrane-bound organelles
C. Circular DNA
D. Multicellularity
🟢 C. Circular DNA
WELL DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS |
LATEST EXAM UPDATE
*Core Domains*
*Cellular Biology*
*Molecular Biology*
*Genetics and Heredity*
*Biological Classification*
*Anatomy and Physiology*
*Scientific Reasoning*
*Microbiology*
*Evolution and Natural Selection*
*Introduction*
The ATI TEAS 7 Biology Exam is a comprehensive assessment designed to evaluate
a candidate's foundational knowledge and readiness for entry-level nursing and allied
health programs. The exam focuses on essential biological concepts, including
cellular processes, genetics, and human anatomy, which are critical for clinical
success. This assessment utilizes a multiple-choice and scenario-based structure to
,measure not only rote memorization but also the ability to apply scientific principles to
real-world medical situations. Emphasis is placed on critical thinking, ethical scientific
conduct, and decision-making skills necessary for high-stakes healthcare
environments, ensuring practitioners possess a robust understanding of the biological
sciences.
SECTION ONE: QUESTIONS 1–100
1. Which of the following organelles is responsible for the synthesis of ATP through
cellular respiration?
A. Ribosome
B. Lysosome
C. Mitochondria
D. Golgi apparatus
🟢 C. Mitochondria
🔴 Explanation: Mitochondria are known as the powerhouse of the cell because they
convert biochemical energy from nutrients into adenosine triphosphate (ATP) via
aerobic respiration.
2. In a DNA molecule, which nitrogenous base always pairs with Cytosine?
,A. Adenine
B. Guanine
C. Thymine
D. Uracil
🟢 B. Guanine
🔴 Explanation: According to Chargaff's rules of base pairing, Guanine always forms
three hydrogen bonds with Cytosine in a DNA double helix.
3. Which phase of mitosis involves the alignment of chromosomes along the
equatorial plate of the cell?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
🟢 B. Metaphase
🔴 Explanation: During metaphase, spindle fibers pull the chromosomes until they
are perfectly aligned in the center of the cell, known as the metaphase plate.
, 4. A researcher is studying the ethical implications of CRISPR gene editing in
human embryos. Which regulatory principle is most concerned with the long-
term effects on the human gene pool?
A. Informed consent
B. Justice
C. Non-maleficence
D. Beneficence
🟢 C. Non-maleficence
🔴 Explanation: Non-maleficence refers to the duty to "do no harm." In genetics, this
involves assessing the risk of unintended mutations or long-term negative
consequences for future generations.
5. Which of the following is a characteristic of a prokaryotic cell?
A. Presence of a nucleus
B. Membrane-bound organelles
C. Circular DNA
D. Multicellularity
🟢 C. Circular DNA
