Science Practice Questions
The following 80 multiple-choice questions are designed to help you prepare
for the Science section of the ATI TEAS 7 exam. Each question has four an-
swer choices (A–D), with only one correct answer. The questions cover Human
Anatomy and Physiology, Life and Physical Sciences, and Scientific Reasoning,
aligned with the 2025 TEAS objectives.
Human Anatomy and Physiology (40 Questions)
1. Which organ is primarily responsible for filtering waste from the blood?
A. Liver
B. Kidney
C. Spleen
D. Pancreas
2. What is the primary function of the alveoli in the lungs?
A. To filter air
B. To exchange gases
C. To produce mucus
D. To regulate airflow
3. Which part of the brain controls voluntary movements?
A. Cerebellum
B. Medulla oblongata
C. Cerebrum
D. Thalamus
4. What type of muscle is found in the walls of the heart?
A. Smooth
B. Skeletal
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, C. Cardiac
D. Voluntary
5. Which hormone regulates blood sugar levels by facilitating glucose uptake?
A. Adrenaline
B. Insulin
C. Cortisol
D. Thyroxine
6. What is the role of the epiglottis in the respiratory system?
A. To produce sound
B. To prevent food from entering the trachea
C. To filter air
D. To exchange oxygen
7. Which blood vessels carry oxygen-rich blood away from the heart?
A. Veins
B. Capillaries
C. Arteries
D. Venules
8. What is the primary function of the small intestine?
A. To store food
B. To absorb nutrients
C. To produce bile
D. To eliminate waste
9. Which bone protects the brain?
A. Mandible
B. Cranium
C. Scapula
D. Sternum
10. What is the role of red blood cells in the body?
A. To fight infections
B. To transport oxygen
C. To clot blood
D. To produce antibodies
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, 11. Which gland produces melatonin to regulate sleep?
A. Thyroid
B. Pituitary
C. Pineal
D. Adrenal
12. What is the function of the diaphragm during breathing?
A. To filter air
B. To contract and expand the chest cavity
C. To produce mucus
D. To exchange gases
13. Which part of the eye focuses light onto the retina?
A. Cornea
B. Lens
C. Iris
D. Pupil
14. What is the primary role of the pancreas in digestion?
A. To produce digestive enzymes
B. To absorb nutrients
C. To store bile
D. To break down proteins
15. Which type of joint allows for the greatest range of motion?
A. Hinge
B. Pivot
C. Ball-and-socket
D. Suture
16. What is the function of the lymphatic system?
A. To regulate blood sugar
B. To maintain fluid balance and immunity
C. To transport oxygen
D. To produce hormones
17. Which part of the neuron transmits signals away from the cell body?
A. Dendrite
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