Clear, easy to understand ATI Teas 7 Study Guide 2026 Practice Test 2 Questions and Answers

What is the primary function of the alveoli in the respiratory system? A. Filter blood B. Exchange oxygen and carbon dioxide C. Produce mucus D. Control breathing rate ️️ B. Exchange oxygen and carbon dioxide Which organelle is responsible for ATP production in a cell? A. Nucleus B. Ribosome C. Mitochondria D. Golgi apparatus ️️ C. Mitochondria What is the pH of a neutral solution? A. 0 B. 7 C. 14 D. 1 ️️ B. 7 Which blood component is responsible for clotting? A. Red blood cells B. White blood cells C. Platelets D. Plasma ️️ C. Platelets What is the largest organ in the human body? A. Liver B. Skin C. Heart D. Lung ️️ B. Skin Which part of the brain controls balance and coordination? A. Cerebrum B. Cerebellum C. Medulla 2 D. Hypothalamus ️️ B. Cerebellum What type of bond involves sharing electrons? A. Ionic B. Covalent C. Hydrogen D. Metallic ️️ B. Covalent Which vitamin is essential for blood clotting? A. Vitamin A B. Vitamin C C. Vitamin K D. Vitamin D ️️ C. Vitamin K What is the basic unit of heredity? A. Chromosome B. Gene C. Protein D. Nucleus ️️ B. Gene Which system is responsible for hormone production? A. Digestive B. Endocrine C. Respiratory D. Muscular ️️ B. Endocrine What is the function of the kidneys? A. Pump blood B. Filter waste from blood C. Produce hormones D. Digest food ️️ B. Filter waste from blood Which gas is most abundant in Earth’s atmosphere? A. Oxygen B. Carbon dioxide C. Nitrogen D. Hydrogen ️️ C. Nitrogen 3 What is the main function of red blood cells? A. Fight infection B. Carry oxygen C. Produce antibodies D. Clot blood ️️ B. Carry oxygen What type of energy is stored in food? A. Kinetic B. Thermal C. Chemical D. Electrical ️️ C. Chemical Which structure controls cell activities? A. Cytoplasm B. Cell membrane C. Nucleus D. Lysosome ️️ C. Nucleus What is the function of the small intestine? A. Absorb nutrients B. Store bile C. Produce insulin D. Pump blood ️️ A. Absorb nutrients Which process converts glucose into energy? A. Photosynthesis B. Respiration C. Diffusion D. Fermentation only ️️ B. Respiration What is the boiling point of water at sea level? A. 0°C B. 50°C C. 100°C D. 212°C ️️ C. 100°C Which element is necessary for thyroid hormone production? A. Iron B. Iodine 4 C. Calcium D. Sodium ️️ B. Iodine What is the function of white blood cells? A. Transport oxygen B. Fight infection C. Carry nutrients D. Produce hormones ️️ B. Fight infection Which part of the eye controls light entry?