ATI TEAS 7 Science Practice Test 2026 –
Free TEAS Science Questions & Detailed
Answers
Description:
Prepare for the ATI TEAS 7 Science section with our exclusive 2026 practice test, designed to
reflect the most current exam standards. This resource includes 50 targeted science
questions covering Human Anatomy, Biology, Chemistry, and Scientific Reasoning,
complete with clear explanations for every answer. Whether you're reviewing key TEAS
science topics like the circulatory system, cell biology, or genetics, or practicing with realistic
test-style questions, this guide helps you identify your strengths and focus your study time.
Maximize your score and walk into test day with confidence. Download your free TEAS
Science practice test now and start preparing to succeed!
, ATI TEAS 7 Science Practice Test 2026: 50 Q&A with Explanations
1. Which three major glands produce saliva and where are they situated within the oral cavity?
a) Parotid, sublingual, and submandibular; located near the ears, under the tongue, and beneath
the jaw, respectively.
b) Thyroid, parathyroid, and adrenal; located in the throat.
c) Sebaceous, eccrine, and apocrine; located within the dermis.
Answer: a) Parotid, sublingual, and submandibular; located near the ears, under the tongue, and
beneath the jaw, respectively.
Explanation: The parotid glands are near the ears, the sublingual glands are under the tongue,
and the submandibular glands are beneath the jawbone. These are the three primary pairs of
salivary glands.
2. Which enzyme, secreted by the kidneys, plays a critical role in the regulation of systemic blood
pressure?
a) Amylase
b) Renin
c) Insulin
d) Pepsin
Answer: b) Renin
Explanation: Renin is released by the kidneys and initiates the renin-angiotensin-aldosterone
system (RAAS), which is a key mechanism for controlling blood pressure and fluid balance.
3. A scientist gathers data on vehicle counts at a major intersection at various times over several
weeks. This dataset is most applicable for analyzing which of the following?
a) Vehicle fuel efficiency
b) Traffic flow patterns during peak hours
c) Driver behavior at stop signs
d) The correlation between car color and time of day
Answer: b) Traffic flow patterns during peak hours
Explanation: Collecting data on the number of cars at different times allows for the analysis of
traffic density fluctuations, identifying peak congestion periods like rush hour.
, 4. Which of the following is the most accurate description of a ligament's function?
a) Connects muscle to bone
b) Attaches two bones together at a joint
c) Connects bone to cartilage
d) Binds epithelial tissue to underlying structures
Answer: b) Attaches two bones together at a joint
Explanation: Ligaments are fibrous connective tissues that connect bones to other bones,
providing joint stability.
5. What is the fundamental distinction between innate and adaptive immunity?
a) Innate immunity is faster but less specific, while adaptive immunity is slower but highly
specific.
b) Innate immunity involves antibodies, while adaptive immunity involves physical barriers.
c) Innate immunity is acquired, while adaptive immunity is present from birth.
Answer: a) Innate immunity is faster but less specific, while adaptive immunity is slower but
highly specific.
Explanation: Innate immunity provides immediate, general defense mechanisms. Adaptive
immunity develops over time, providing a targeted response with memory for specific pathogens.
6. During protein synthesis, which molecule is responsible for transporting amino acids to the
ribosome?
a) mRNA
b) rRNA
c) tRNA
d) DNA
Answer: c) tRNA
Explanation: Transfer RNA (tRNA) carries specific amino acids to the ribosome, where they
are added to the growing polypeptide chain according to the mRNA template.
7. Which sequence best represents the core steps of the scientific method?
a) Conclusion, Experiment, Hypothesis, Observation
b) Observation, Hypothesis, Experiment, Analysis, Conclusion
c) Analysis, Prediction, Observation, Experiment
Answer: b) Observation, Hypothesis, Experiment, Analysis, Conclusion
Free TEAS Science Questions & Detailed
Answers
Description:
Prepare for the ATI TEAS 7 Science section with our exclusive 2026 practice test, designed to
reflect the most current exam standards. This resource includes 50 targeted science
questions covering Human Anatomy, Biology, Chemistry, and Scientific Reasoning,
complete with clear explanations for every answer. Whether you're reviewing key TEAS
science topics like the circulatory system, cell biology, or genetics, or practicing with realistic
test-style questions, this guide helps you identify your strengths and focus your study time.
Maximize your score and walk into test day with confidence. Download your free TEAS
Science practice test now and start preparing to succeed!
, ATI TEAS 7 Science Practice Test 2026: 50 Q&A with Explanations
1. Which three major glands produce saliva and where are they situated within the oral cavity?
a) Parotid, sublingual, and submandibular; located near the ears, under the tongue, and beneath
the jaw, respectively.
b) Thyroid, parathyroid, and adrenal; located in the throat.
c) Sebaceous, eccrine, and apocrine; located within the dermis.
Answer: a) Parotid, sublingual, and submandibular; located near the ears, under the tongue, and
beneath the jaw, respectively.
Explanation: The parotid glands are near the ears, the sublingual glands are under the tongue,
and the submandibular glands are beneath the jawbone. These are the three primary pairs of
salivary glands.
2. Which enzyme, secreted by the kidneys, plays a critical role in the regulation of systemic blood
pressure?
a) Amylase
b) Renin
c) Insulin
d) Pepsin
Answer: b) Renin
Explanation: Renin is released by the kidneys and initiates the renin-angiotensin-aldosterone
system (RAAS), which is a key mechanism for controlling blood pressure and fluid balance.
3. A scientist gathers data on vehicle counts at a major intersection at various times over several
weeks. This dataset is most applicable for analyzing which of the following?
a) Vehicle fuel efficiency
b) Traffic flow patterns during peak hours
c) Driver behavior at stop signs
d) The correlation between car color and time of day
Answer: b) Traffic flow patterns during peak hours
Explanation: Collecting data on the number of cars at different times allows for the analysis of
traffic density fluctuations, identifying peak congestion periods like rush hour.
, 4. Which of the following is the most accurate description of a ligament's function?
a) Connects muscle to bone
b) Attaches two bones together at a joint
c) Connects bone to cartilage
d) Binds epithelial tissue to underlying structures
Answer: b) Attaches two bones together at a joint
Explanation: Ligaments are fibrous connective tissues that connect bones to other bones,
providing joint stability.
5. What is the fundamental distinction between innate and adaptive immunity?
a) Innate immunity is faster but less specific, while adaptive immunity is slower but highly
specific.
b) Innate immunity involves antibodies, while adaptive immunity involves physical barriers.
c) Innate immunity is acquired, while adaptive immunity is present from birth.
Answer: a) Innate immunity is faster but less specific, while adaptive immunity is slower but
highly specific.
Explanation: Innate immunity provides immediate, general defense mechanisms. Adaptive
immunity develops over time, providing a targeted response with memory for specific pathogens.
6. During protein synthesis, which molecule is responsible for transporting amino acids to the
ribosome?
a) mRNA
b) rRNA
c) tRNA
d) DNA
Answer: c) tRNA
Explanation: Transfer RNA (tRNA) carries specific amino acids to the ribosome, where they
are added to the growing polypeptide chain according to the mRNA template.
7. Which sequence best represents the core steps of the scientific method?
a) Conclusion, Experiment, Hypothesis, Observation
b) Observation, Hypothesis, Experiment, Analysis, Conclusion
c) Analysis, Prediction, Observation, Experiment
Answer: b) Observation, Hypothesis, Experiment, Analysis, Conclusion
