ATI TEAS 2025 PRACTICE EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS | ALREADY GRADED A+RECENT VERSION

ATI TEAS 2025 PRACTICE EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS | ALREADY GRADED A+RECENT VERSION 1) cephalic - answer head 2) cranial - answer skull 3) facial - answer face 4) cervical - answer neck 5) axillary - answer armpit 6) brachial - answer arm 7) antecubital - answer front of elbow 8) antebrachial - answer forearm 9) carpal - answer wrist 10) palmar - answer palm 11) pollex - answer thumb 12) digital - answer fingers, toes 13) Phalanges - answer fingers, toes 14) femoral - answer thigh 15) patella - answer front of knee 16) crural - answer shin 17) pedal - answer foot 18) tarsal - answer ankle 19) dorsum - answer top of foot/back of hand 20) hallux - answer great toe (big toe) 21) sternal - answer breastbone 22) thoracic - answer chest 23) mammary - answer breast 24) abdominal - answer abdomen 25) umbilical - answer navel 26) Ceruminous glands - answer Accessory structures that produce ear wax. They are found only in the dermis of the ear canal. 27) Cervix - answer The passage that forms the lower part of the uterus. 28) Chemical (enzymatic) digestion - answer the breakdown of food by enzymes for absorption. 29) Chemical equation - answer Mathematical representation of a chemical reaction. 30) Chromatid - answer One of the two duplicates of a chromosome formed during the cell cycle. 31) Chromosome - answer A structure made of protein and one molecule of DNA that contains genetic information. 32) Chyme - answer The semifluid mass of perky digested food that moves from the stomach to the small intestine. 33) Codons - answer Triplets of nucleotides that code for amino acids. 34) Cohesion - answer The tendency of similar molecules to stick to each other or group together. 35) Collagen - answer The primary structural protein of connective tissue. 36) Commensal microorganisms - answer Microscopic organisms that live in or on the human body without causing it harm. 37) Compact (dense) bone - answer Bone containing densely packed osteons that make up the peripheral layer of bone. 38) Complementary strand - answer A molecule of RNA (or a strand of DNA) synthesized from a complementary template strand. 39) Compound - answer A made of two or more elements. 40) Concentration of solution - answer The quantity of solute in a given quantity solution. 41) Contraction - answer The process of leading to shortening and/ or development of tension in a muscle. 42) Conversion factor - answer The number used to multiply or divide to convert from one value to another. 43) Covalent bond - answer A chemical bond in which electron pairs are shared between atoms. 44) Cubic units - answer United used to measure volume. One cubic unit is the volume of a cube with sides that measure 1 unit. 45) Cutaneous vasoconstriction - answer A decrease in the diameter of blood vessels in the dermis that reduces blood flow through the skin. 46) Cytokines - answer Cell signaling molecules released primarily by helper T cells and macrophages. Certain cytokines activate cytotoxic T cells. 47) Cytoplasm - answer the material within a eukaryotic cell that supports and suspends structures inside the cell membrane and transfers materials required for cellular processes. 48) Cytotoxic T cells - answer The category of lymphocyte that attacks foreign cells. 49) Dehydration reaction - answer a chemical reaction between two molecules in which a water molecule is released and a covalent bond forms; often requires an input of energy; polymers are built as a result of this reaction. 50) Dendrite - answer A nerve fiber that carries a nerve impulse towards the neuron cell body. 51) Density - answer The ratio of mass to volume. 52) Deoxyribonucleic acid (DNA) - answer The material that contains genetic information and is responsible for directing protein synthesis in living organisms. 53) Deoxyribose sugar - answer The sugar portion of deoxyribose nucleotide. 54) Diabetes - answer Pathologically high blood sugar levels that result from a pancreatic hormone regulation malfunction. 55) Diffusion - answer The passive movement of a substance from an area of high concentration to an area of low concentration. 56) Dihybrid cross - answer A cross between parents heterozygous at two specific genes. 57) Dilution - answer The addition of solvent to decrease the concentration of solute in a solution. 58) Direct variation - answer When two variables increase or decrease at the same rate. 59) Disease - answer A condition that deteriorates the normal functioning of the cells, tissues, and/ or organs. 60) Dominant - answer Refers to the most powerful trait of the allele for that trait. 61) Eccrine sweat glands - answer Accessory structures originating throughout the dermis of the human body that secrete sweat, used primarily for regulation of body temperature. 62) Electron - answer A negatively charged atomic particle. 63) Element - answer Evidence generated through experimentation. 64) Endocrine gland - answer A gland that secretes hormones. A duct-less gland. 65) Endothermic - answer Involving absorption of heat. 66) Enzyme - answer A substance produced by a living thing that acts as a catalyst. A catalyst that speeds up a chemical reaction by lowering the activation energy; in cells most enzymes are proteins. 67) Epinephrine - answer A polar, water-soluble hormone released by the adrenals in response to stress. Also known as adrenaline. 68) Equilibrium - answer The stage of a chemical reaction in which both reactants and products are present and their concentrations no longer change. 69) Estrogen - answer A female sex hormone released by the ovaries. 70) Excretion - answer Elimination of metabolic waste of the body. 71) Exothermic - answer Involving release of heat. 72) Fallopian tubes - answer Tubes that carry eggs from the ovaries to the uterus. 73) Fatty acid - answer A molecule composed of a long hydrocarbon chain with a carboxylic acid group on one end. 74) Fertilization (conception) - answer The fusion of the egg and sperm. 75) Filtrate - answer Materials, including water, that leave the blood through the walls of the glomerular capillaries to enter the Bowman's capsule. 76) Flat bones - answer Thin bones that have a plate like shape, such as bones of the cranium. 77) Follicle - answer Saclike structure that contains and allows for mature ration of the female ovum (egg) within the ovary. 78) Follicle-stimulating hormone - answer A hormone secreted by the anterior pituitary that stimulates development of eggs and ovaries in sperm in testes. 79) Fungi - answer Eukaryotic organisms that obtain nutrients by absorbing organic material from their environment (decomposers) through symbiotic relationships with plants or harmful relationships with a host. 80) Gamete - answer Sex cell; in males, the sperm, and females the eggs (ova) 81) Gene - answer A sequence of DNA that is the basic unit of heredity. 82) Genetic code - answer The set of 64 codons that specify the 20 amino acids. 83) Genome - answer The genetic makeup of an individual. 84) Gigantism - answer Excessive growth resulting from overproduction of growth hormone. 85) Glomerulus - answer A network of capillaries, from which blood pressure pushes water, salt, glucose, amino acids, and urea from the blood. 86) Glucagon - answer A hormone secreted by the pancreas that stimulates it's target cells in the liver to convert hepatic, glycogen stores into glucose and release that glucose into the blood. 87) Glycerol - answer A sugar compound that serves as the backbone for triglycerides and phospholipids. 88) Golgi apparatus - answer A cell organelle that processes proteins and lipid molecules. 89) Graduated cylinder - answer A narrow cylinder used to measure liquid volume. 90) Gram - answer Metric unit of mass. 91) Group - answer A column of elements in the periodic table. 92) Growth plate - answer Hyaline cartilage in long bones we're bone elongation happens. Also known as the epiphyseal plate. 93) Hair follicles - answer Tubes arising from the dermis, surrounded by invaginations of epithelial tissue, from which hair growth occurs. 94) Heart - answer Muscular organ that pumps blood throughout the body. 95) Helper T cell - answer A type of lymphocyte, that secretes interleukins, a protein, that triggers, the action of other cells, including the attack of foreign cells by the cytotoxic T cell. 96) Hemoglobin - answer Protein in red blood cells that carries oxygen from the lungs to the rest of the body. 97) Heterozygous - answer The state of carrying a different alleles of gene; e.g., Aa 98) Hinge joint - answer A joint that allows for flexion and extension of the more distal bone along only one plane. 99) Histamine - answer A white blood cells secretion that triggers capillary permeability in vasodilatation. 100) Homeostasis - answer The maintenance of a constant internal environment. 101) Homozygous - answer The state of carrying a pair of identical alleles of a gene; e.g., AA or aa 102) Hormone - answer A chemical messenger produced by a gland and transported by the blood stream that regulates specific processes in the body. 103) Host - answer A larger organism on/in whose body a parasite lives. 104) Hyaline cartilage - answer The kind of connective tissue that protects bone in articulating joints. 105) Hydrogen bond - answer A type of non-covalent bond; a weak attraction between a hydrogen atom found two in electronegative atom and a second highly electronegative atom. 106) Hydrolysis reaction - answer A chemical reaction in which a water molecule cleaved a covalent bond to form two products; monomeric subunits of polymers are cleaved from a polymer by this reaction. 107) Hydrophilic - answer Water loving. 108) Hydrophobic - answer Water fearing. 109) Hyperthyroidism - answer A malfunctioning of regulator feedback loops leading to the overproduction of thyroid hormone. 110) Hypothesis - answer And informed guess about a casual relationship that is generated by observation and initial data collection. 111) Immovable - answer Joints, such as those between the plates of the skull, that do not allow emotion. 112) Infectious/communicable diseases - answer Diseases that spread from one person to another. 113) Inheritance - answer Transmission of characteristics to offspring. 114) Inhibiting hormones - answer Chemical messengers that restrict the production of certain hormones. 115) Innate defense - answer A nonspecific response to pathogens by the immune system. 116) Innate immune system - answer A collection of non-specific barriers and cellular responses that serve as an inborn first and second line of defense against pathogens. 117) Insulin - answer A hormone, that triggers, the influx of glucose into cells, thus lowering blood glucose levels. 118) Integumentary system - answer An organ system comprised of skin, and it's associated organs. 119) Interferons - answer Proteins secreted by leukocytes when they are infected with viruses. 120) Interphase - answer The stage in mitosis, or meiosis, in which DNA replicates. 121) Ion - answer A positively or negatively charged atom or molecule. 122) Ionic bond - answer The bond between two oppositely charged ions. 123) Irregular bones - answer Bones that do not fit into the three bone shape categories: flat bone, long bone, short bone. 124) Isotopes - answer Atoms of the same element that have different numbers of neutrons, but the same number of protons and electrons. 125) Joints - answer Places in the skeletal system, where bones meet other bones. Some joints are movable, and some are immovable because the bones are fused together. 126) Keratin - answer A tough protein made by epithelial keratinocytes. 127) Kidneys - answer The pair of organs that regulate fluid balance and filter waste from the blood. 128) Kinetic Molecular Theory - answer A theory stating that the molecules that make up all matter are in constant motion, and the temperature of a substance is directly proportional to the average kinetic energy of its molecules. 129) Lacunae - answer Microscopic pits and bones that contain osteocytes sites and connect to each other within an osteon by way of canaliculi. 130) Large intestine - answer Comprised of the cecum, colon, rectum, and anal canal, it is where vitamins and water are absorbed before feces is stored prior to elimination. 131) Le Chatelier's principle - answer A principal stating that when a chemical reaction at equilibrium is perturbed, it responds by proceeding in a direction that will store the equilibrium. 132) Leukocyte - answer White blood cells, which protect the body against disease. 133) Lipase - answer Pancreatic enzyme that breaks down fat. 134) Lipids - answer Fatty acids and their derivatives that are insoluble in water. 135) Liter - answer Measurement of liquid volume. 136) Long bones - answer Bones that have a pronounced longitudinal axis. 137) Luteinizing hormone - answer A hormone secreted by the anterior pituitary that is responsible for triggering ovulation in ovaries, and the production of testosterone by testes. 138) Lymph - answer Clear fluid that moves throughout the lymphatic system to fight disease. 139) Lymphocyte - answer A category of white blood cells that includes natural killer cells, B cells, helper, T cells, and cytotoxic T cells. 140) Lysosome - answer A cell organelle that aids in digestion and the recycling of old cell material. 141) Macromolecules - answer Very large molecules, four major types of which are important to living things; carbohydrates, proteins, lipids, and nucleic acid. 142) Macrophage - answer A large white blood cell that invests foreign material. 143) Mass - answer A measurement of a inertia, commonly considered the amount of material contained by an object and causing it to have weight in a gravitational field. 144) Mediastinum - answer The area between the two lungs. 145) Meiosis - answer Specialized cell division used to create haploid gametes in diploid organisms. 146) Memory cell - answer A lymphocyte that respond to an antigen join reintroduction. 147) Mendelian inheritance - answer Inheritance of traits that follow Gregor Mendel's two laws and the principle of dominance. 148) Metaphase - answer The stage in mitosis in which chromosomes align. 149) Metaphase 2 - answer The stage in meiosis 2 in which individual chromosomes align. 150) Metaphase 1 - answer The stage in meiosis 1 in which pairs of homologous chromosomes align. 151) Microbes/microorganisms - answer Organisms that cannot be seen with the naked eye, and may be classified as bacteria, viruses, fungi, protozoa (including algae), or animals. 152) Mitosis - answer Cell division in eukaryotes that produce two daughter cells, each with the same chromosome number as the parent cell. 153) Molecule - answer An arrangement of two or more atoms bonded together. 154) Monomers - answer Molecules that can bond to similar or identical molecules to form a polymer. 155) Mouth - answer The oral cavity at the entry to the alimentary canal. 156) Muscle - answer Fibrous tissue that produces force and motion to move the body or produce movement in parts of the body. 157) Muscular system - answer An integrated system in the body that is vital for controlling, involuntary and voluntary movement. 158) Mutation - answer A permanent change in the nucleotide sequence of DNA that may arise during replication. 159) Negative feedback - answer A mechanism that includes the monitoring for specific homeostatic levels and signal to a gland. This signal stimulates or inhibits the glands secretion in order to maintain homeostasis or cause compensation that returns the level of homeostasis. 160) Nephron - answer A system of microscopic tubes in the kidney that use various pressure levels to remove waste and reabsorb, important molecules, and water. 161) Nerve - answer A long bundle of neuronal axons that transmits signals to, and from the central nervous system.