Must read before exams- ATI TEAS Practice Test Questions and answers

What is the primary function of the alveoli in the respiratory system? A Gas exchange B Filtration of blood C Production of hormones D Storage of oxygen ️️ Correct answer: A Gas exchange Which organelle is responsible for ATP production in eukaryotic cells? A Nucleus B Ribosome C Mitochondrion D Golgi apparatus ️️ Correct answer: C Mitochondrion What is the main purpose of the large intestine? A Absorb nutrients B Digest proteins C Absorb water and form feces D Produce bile ️️ Correct answer: C Absorb water and form feces Which part of the brain controls balance and coordination? A Cerebrum B Cerebellum C Medulla D Hypothalamus ️️ Correct answer: B Cerebellum What type of blood vessel carries blood away from the heart? A Veins B Capillaries C Arteries D Venules ️️ Correct answer: C Arteries Which layer of the skin is responsible for producing new skin cells? A Epidermis B Dermis C Hypodermis 2 D Subcutaneous layer ️️ Correct answer: A Epidermis What is the chemical formula for water? A CO2 B H2O C NaCl D O2 ️️ Correct answer: B H2O Which macromolecule is primarily responsible for energy storage? A Proteins B Carbohydrates C Nucleic acids D Minerals ️️ Correct answer: B Carbohydrates What is the function of red blood cells? A Fight infection B Carry oxygen C Produce hormones D Clot blood ️️ Correct answer: B Carry oxygen Which process describes water moving across a semipermeable membrane? A Diffusion B Osmosis C Active transport D Filtration ️️ Correct answer: B Osmosis What is the basic unit of life? A Atom B Molecule C Cell D Tissue ️️ Correct answer: C Cell Which vitamin is essential for calcium absorption? A Vitamin A B Vitamin C C Vitamin D D Vitamin K ️️ Correct answer: C Vitamin D 3 Which system controls hormones in the body? A Nervous system B Endocrine system C Digestive system D Respiratory system ️️ Correct answer: B Endocrine system What is the function of the kidneys? A Pump blood B Filter waste from blood C Produce insulin D Digest food ️️ Correct answer: B Filter waste from blood Which blood type is known as the universal donor? A AB+ B O- C A+ D B- ️️ Correct answer: B O- What is the powerhouse of the cell? A Nucleus B Ribosome C Mitochondria D Lysosome ️️ Correct answer: C Mitochondria Which gas is most abundant in Earth's atmosphere? A Oxygen B Carbon dioxide C Nitrogen D Hydrogen ️️ Correct answer: C Nitrogen What is the function of platelets? A Carry oxygen B Fight infection C Blood clotting D Transport nutrients ️️ Correct answer: C Blood clotting Which organ produces insulin? A Liver B Pancreas 4 C Kidney D Stomach ️️ Correct answer: B Pancreas What is the smallest particle of an element? A Cell B Atom C Molecule D Compound ️️ Correct answer: B Atom Which process converts glucose into energy in cells?