ATI TEAS 7 Comprehensive Predictor Test Bank 2025/2026
ATI TEAS 7 Comprehensive Predictor Test Bank 2025/2026 |
Exam Questions with Verified Answers & Rationales | Science,
Math, English, Reading | Nursing Entrance Exam Prep
Table of Contents
Section I: Science
Topics: Human Anatomy & Physiology, Biology, Chemistry, Scientific Reasoning
Section II: Topics: Numbers & Algebra, Measurement & Data
Section III: English
Topics: Conventions of Standard English, Knowledge of Language, Vocabulary
Section IV: Topics: Key Ideas & Details, Craft & Structure, Integration of Knowledge &
Ideas
,ATI TEAS 7 Comprehensive Predictor Test Bank 2025/2026
Section I: Science
Number of Questions: 35
Topics: Human Anatomy & Physiology, Biology, Chemistry, Scientific Reasoning
1. Which of the following is the primary function of the mitochondria?
a) Protein synthesis
b) Lipid storage
c) ATP production
d) Genetic material storage
Answer: c) ATP production
Rationale: Mitochondria are known as the powerhouse of the cell because they generate
adenosine triphosphate (ATP) through cellular respiration.
2. Which of the following blood components is primarily responsible for clotting?
a) Erythrocytes
b) Leukocytes
c) Platelets
d) Plasma
Answer: c) Platelets
Rationale: Platelets (thrombocytes) are cell fragments that aggregate at sites of vessel
injury to form a plug and initiate the clotting cascade.
3. The pH of a substance is measured as 3. This substance is classified as:
a) A strong base
b) A weak base
c) A strong acid
d) A neutral substance
Answer: c) A strong acid
Rationale: The pH scale ranges from 0 to 14. A pH of 3 is highly acidic, indicating a high
concentration of hydrogen ions.
4. Which of the following structures is part of the central nervous system (CNS)?
a) Spinal cord
b) Peripheral nerve
c) Ganglion
d) Sensory receptor
Answer: a) Spinal cord
Rationale: The central nervous system consists of the brain and spinal cord. Peripheral
nerves, ganglia, and sensory receptors are part of the peripheral nervous system.
5. Which of the following describes osmosis?
a) Movement of solutes from high to low concentration
b) Movement of water across a semipermeable membrane
c) Movement of molecules using ATP energy
d) Movement of ions against a concentration gradient
Answer: b) Movement of water across a semipermeable membrane
, ATI TEAS 7 Comprehensive Predictor Test Bank 2025/2026
Rationale: Osmosis is the passive movement of water molecules from an area of low solute
concentration to an area of high solute concentration across a semipermeable membrane.
6. Which hormone is produced by the pineal gland and regulates sleep-wake cycles?
a) Melatonin
b) Serotonin
c) Dopamine
d) Cortisol
Answer: a) Melatonin
Rationale: The pineal gland secretes melatonin, which helps regulate circadian rhythms
and sleep patterns.
7. Which of the following is a function of the liver?
a) Production of insulin
b) Filtration of blood to form urine
c) Detoxification of harmful substances
d) Absorption of nutrients
Answer: c) Detoxification of harmful substances
Rationale: The liver metabolizes toxins, drugs, and alcohol, converting them into less
harmful substances for excretion.
8. In a scientific experiment, the variable that is deliberately changed by the
researcher is the:
a) Dependent variable
b) Controlled variable
c) Constant variable
d) Independent variable
Answer: d) Independent variable
Rationale: The independent variable is manipulated by the researcher to observe its effect
on the dependent variable.
9. Which of the following correctly orders the levels of organization from simplest to
most complex?
a) Organ, tissue, cell, organ system, organism
b) Cell, tissue, organ, organ system, organism
c) Tissue, cell, organ, organism, organ system
d) Cell, organ, tissue, organ system, organism
Answer: b) Cell, tissue, organ, organ system, organism
Rationale: Cells form tissues, tissues form organs, organs form organ systems, and organ
systems work together to form an organism.
10. Which of the following is the function of the alveoli in the respiratory system?
a) Transport of oxygen to tissues
b) Production of mucus to trap pathogens
c) Site of gas exchange between air and blood
d) Filtration of particulate matter from inhaled air
Answer: c) Site of gas exchange between air and blood
ATI TEAS 7 Comprehensive Predictor Test Bank 2025/2026 |
Exam Questions with Verified Answers & Rationales | Science,
Math, English, Reading | Nursing Entrance Exam Prep
Table of Contents
Section I: Science
Topics: Human Anatomy & Physiology, Biology, Chemistry, Scientific Reasoning
Section II: Topics: Numbers & Algebra, Measurement & Data
Section III: English
Topics: Conventions of Standard English, Knowledge of Language, Vocabulary
Section IV: Topics: Key Ideas & Details, Craft & Structure, Integration of Knowledge &
Ideas
,ATI TEAS 7 Comprehensive Predictor Test Bank 2025/2026
Section I: Science
Number of Questions: 35
Topics: Human Anatomy & Physiology, Biology, Chemistry, Scientific Reasoning
1. Which of the following is the primary function of the mitochondria?
a) Protein synthesis
b) Lipid storage
c) ATP production
d) Genetic material storage
Answer: c) ATP production
Rationale: Mitochondria are known as the powerhouse of the cell because they generate
adenosine triphosphate (ATP) through cellular respiration.
2. Which of the following blood components is primarily responsible for clotting?
a) Erythrocytes
b) Leukocytes
c) Platelets
d) Plasma
Answer: c) Platelets
Rationale: Platelets (thrombocytes) are cell fragments that aggregate at sites of vessel
injury to form a plug and initiate the clotting cascade.
3. The pH of a substance is measured as 3. This substance is classified as:
a) A strong base
b) A weak base
c) A strong acid
d) A neutral substance
Answer: c) A strong acid
Rationale: The pH scale ranges from 0 to 14. A pH of 3 is highly acidic, indicating a high
concentration of hydrogen ions.
4. Which of the following structures is part of the central nervous system (CNS)?
a) Spinal cord
b) Peripheral nerve
c) Ganglion
d) Sensory receptor
Answer: a) Spinal cord
Rationale: The central nervous system consists of the brain and spinal cord. Peripheral
nerves, ganglia, and sensory receptors are part of the peripheral nervous system.
5. Which of the following describes osmosis?
a) Movement of solutes from high to low concentration
b) Movement of water across a semipermeable membrane
c) Movement of molecules using ATP energy
d) Movement of ions against a concentration gradient
Answer: b) Movement of water across a semipermeable membrane
, ATI TEAS 7 Comprehensive Predictor Test Bank 2025/2026
Rationale: Osmosis is the passive movement of water molecules from an area of low solute
concentration to an area of high solute concentration across a semipermeable membrane.
6. Which hormone is produced by the pineal gland and regulates sleep-wake cycles?
a) Melatonin
b) Serotonin
c) Dopamine
d) Cortisol
Answer: a) Melatonin
Rationale: The pineal gland secretes melatonin, which helps regulate circadian rhythms
and sleep patterns.
7. Which of the following is a function of the liver?
a) Production of insulin
b) Filtration of blood to form urine
c) Detoxification of harmful substances
d) Absorption of nutrients
Answer: c) Detoxification of harmful substances
Rationale: The liver metabolizes toxins, drugs, and alcohol, converting them into less
harmful substances for excretion.
8. In a scientific experiment, the variable that is deliberately changed by the
researcher is the:
a) Dependent variable
b) Controlled variable
c) Constant variable
d) Independent variable
Answer: d) Independent variable
Rationale: The independent variable is manipulated by the researcher to observe its effect
on the dependent variable.
9. Which of the following correctly orders the levels of organization from simplest to
most complex?
a) Organ, tissue, cell, organ system, organism
b) Cell, tissue, organ, organ system, organism
c) Tissue, cell, organ, organism, organ system
d) Cell, organ, tissue, organ system, organism
Answer: b) Cell, tissue, organ, organ system, organism
Rationale: Cells form tissues, tissues form organs, organs form organ systems, and organ
systems work together to form an organism.
10. Which of the following is the function of the alveoli in the respiratory system?
a) Transport of oxygen to tissues
b) Production of mucus to trap pathogens
c) Site of gas exchange between air and blood
d) Filtration of particulate matter from inhaled air
Answer: c) Site of gas exchange between air and blood
