ATI TEAS 7 Exam Questions and
Verified Rationalized Answers
Updated 2026/2027
Comprehensive Examination Question Bank • Concept Mapping
TOTAL QUESTIONS EXAM TOPICS ANSWERS
136 Questions 13 Modules 100% Verified
DOCUMENT OVERVIEW
This document contains 136 verified questions with correct answers and rationales covering fundamental
biological concepts. Each item presents a board-style question paired with a concise explanation, making it
suitable for exam preparation, course review, and enhancing understanding of biological systems and
processes.
EXAM BLUEPRINT & TOPIC DISTRIBUTION
Systematic breakdown of subject domains and exam coverage.
Topic Module Scope & Core Focus Questions Share (%)
Examines the structures and functions of the heart and blood
Cardiovascular System vessels. 11 Qs 8.1%
Focuses on hormones and their regulatory roles in
Endocrine System physiological processes. 12 Qs 8.8%
Cell Biology Covers the structure, function, and processes of cells. 12 Qs 8.8%
Homeostasis and Body Explores mechanisms that maintain stable internal
Functions environments. 11 Qs 8.1%
Musculoskeletal System Discusses the types and functions of bones and muscles. 10 Qs 7.4%
Genetics and Inheritance Investigates principles of heredity and genetic variation. 10 Qs 7.4%
Analyzes various types of chemical reactions and their
Chemical Reactions characteristics. 10 Qs 7.4%
Biochemical Processes Covers metabolic processes and the role of enzymes. 10 Qs 7.4%
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Anatomy and Physiology Details the structure and function of various body systems. 10 Qs 7.4%
Cellular Transport Mechanisms Examines how substances move in and out of cells. 10 Qs 7.4%
Microbiology and Immunology Explores microorganisms and the immune response. 10 Qs 7.4%
Discusses the stages of growth and development in
Developmental Biology organisms. 10 Qs 7.4%
Examines the fundamental physical properties and
Physical Properties of Matter measurements. 10 Qs 7.4%
Total Exam Coverage 13 Integrated Topic Modules 136 Qs 100.0%
TOPIC 1: CARDIOVASCULAR SYSTEM
11 Questions • 8.1% of Exam • Examines the structures and functions of the heart and blood vessels.
QUESTION 1
Path of blood flow through the heart
Answer: Unoxygenated blood from Inferior Vena Cava (lower extremities) / Superior Vena Cava (upper
extremities) → Right Atrium → Right Ventricle → Pulmonary artery → Lungs for oxygenation → Pulmonary
Vein → Left Atrium → Left Ventricle → Aorta → Upper and lower extremities through arteries.
QUESTION 2
ADH
Answer: Antidiuretic hormone (ADH), also known as vasopressin, is produced in the hypothalamus and
secreted by the pituitary gland. It helps the kidneys control how much water the body loses through urine.
When ADH is released, the kidneys conserve water and produce more concentrated urine.
QUESTION 3
Hypothalamus
Answer: Releasing and Inhibiting Hormones: Regulate the release of hormones from the pituitary gland.
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QUESTION 4
Blood pressure
Answer: Blood pressure is the force of blood pushing against the walls of your arteries as your heart pumps
blood around your body.
QUESTION 5
Eccrine Glands
Answer: Found all over the body and open directly onto the skin surface through pores, secreting a clear,
odorless sweat that's 98-99% water.
QUESTION 6
Osteoporosis
Answer: A bone disease that occurs when the body destroys too much bone or doesn't create enough new
bone.
QUESTION 7
Mutation
Answer: Occurs when an adenine and guanine are placed together, creating a change in DNA.
QUESTION 8
Ribosomes
Answer: Sites of protein synthesis. They translate genetic information from mRNA into proteins by linking
amino acids together in the correct sequence.
QUESTION 9
Independent assortment
Answer: The principle that alleles for different traits are passed independently of one another from parents to
offspring.
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