ATI TEAS Science Section – Complete Study Guide with Q&A – Latest Edition

This ATI TEAS Science study guide contains comprehensive practice questions with correct answers covering the scientific method, anatomy, physiology, biology, and chemistry. Topics include scientific method steps (six steps, analyze results before conclusion), qualitative vs quantitative data, respiratory system (trachea, cilia function, lung anatomy – right lung 3 lobes, left lung 2 lobes, gas exchange in alveoli), circulatory system (blood flow path: right atrium→right ventricle→lungs→left atrium→left ventricle→body, pulmonary vein carries oxygenated blood, sinoatrial node natural pacemaker, tachycardia 118 bpm, left ventricle most muscular, lowest blood pressure in veins), digestive system (food order: esophagus→stomach→small intestine→large intestine→rectum, nutrient absorption in small intestine), integumentary system (hypodermis deepest layer, epidermis lacks blood vessels, functions: protection, waterproofing, temperature regulation), skeletal system (long bones: thighs, forearms, fingers – ankles not long bones; sesamoid bones embedded in tendons; irregular bones: spine and hips), muscular system (cardiac, skeletal, smooth; striated muscle in myocardium), nervous system (parasympathetic lowers heart rate, somatic controls voluntary movement, cerebrum interprets sensory information, hypothalamus releases hormones for puberty), endocrine system (parathyroid regulates calcium, adrenal glands produce stress hormones, hypothalamus controls pituitary), immune system (phagocytes stimulate adaptive immunity, interferons interfere with virus production, plasma cells secrete antibodies, T cells play role in immune response), lymphatic system (spleen filters blood), genitourinary system (kidneys, urethra, bladder – rectum not included), reproductive system (Bartholin's glands lubricate vagina), cell biology (mitochondria powerhouse, nucleus control center, ribosomes synthesize proteins, cilia/flagella for movement, differentiation: simple cells become specialized, DNA replicates before cell division, RNA carries genetic info from DNA to cytoplasm), genetics (phenotype physical expression, genotype genetic makeup, dominant/recessive traits, Punnett square analysis, CFTR gene causes cystic fibrosis), chemistry (catalysts alter activation energy, ionic bonds transfer electrons, pH 7 neutral, atomic mass = protons + neutrons, water molecule H2O with 2 hydrogen + 1 oxygen, condensation gas to liquid, vaporization liquid to gas), periodic table (atomic number = protons, atomic mass = protons + neutrons, elements arranged by increasing atomic number with hydrogen having fewest protons), enzymes (protein molecules that serve as catalysts), and scientific reasoning (independent vs dependent variables, control group, hypothesis testing, reproducible data). Perfect for pre-nursing students preparing for the ATI TEAS exam. Instant digital download.