Test of Essential Academic Skills (TEAS) Science Practice Test

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• True or False: The nervous system releases heat built up by the muscular system.
• Where does the exchange of oxygen occur in the respiratory system?
• During which process does the diaphragm contract, enlarging the chest cavity and creating negative pressure that pulls air into the lungs?
• What performs extremely complex functions in the body?
• In the nuclear reaction 4 He + 14 N --> 17 O + X, what is X?
• What is the best rationale for the existence of dark matter according to scientists?
• What is one of the key characteristics of diseases like emphysema?
• The pancreas is a component of which bodily system?
• Which body system serves as a barrier to foreign substances?
• Inductive reasoning involves which of the following?
• How will an organism lacking a membrane-bound nucleus be classified?
• What type of information is primarily used in quantitative investigations?
• A harmful example of a catalytic reaction involves the breakdown of ozone by the use of what?
• How may a scientific argument change over time?
• What outcome occurs in the reaction of calcium with sulfuric acid?
• Which of the following describes how inhibitors affect the reaction rate of enzymes?
• True or False: The walls of the alveoli facilitate the movement of oxygen and carbon dioxide.
• DNA is to genes, as amino acids are to what?
• During mitosis and cell division, spindle fibers are associated with what organelle?
• What type of bond is formed when electrons are shared between atoms?
• Which system is responsible for transporting substances such as oxygen and nutrients in the body?
• What health issue is commonly associated with chronic tobacco use?
• Which type of cell contains membrane-bound organelles?
• Which of the following is the chemical formula for octyne?
• Which level of organization is higher: ___ or ___?
• A cell uses which of the following as the first line of defense against mutations during DNA replication?
• The veins of the upper part of the body are responsible for transporting blood to what area of the heart?
• Which organelle found in heterotrophs is similar to the chloroplast?
• In the decay reaction 235 U --> X + 4 He, what element represents X?
• What structure in the small intestine increases the surface area for absorption?
• After passing through the stomach, food enters into what structure?
• How do villi and microvilli contribute to digestion?
• In examining electronegativity values, which atom will form the least polar bond with hydrogen?
• Which system includes organs between the mouth and anus?
• What characterizes deductive reasoning?
• When organs work together to perform a task, the result is what?
• Where can connective tissue be found in the body?
• In which tissue type would you find cells responsible for voluntary movement?
• What function does connective tissue serve in the body?
• What are cells also known as?
• What role do white blood cells play in the lymphatic system?
• Where does the digestion of carbohydrates begin?
• Which of the following represents the number of different cells formed upon completion of mitosis II?
• What is defined as a chemical bonding of atoms that possesses its own characteristics independent of the atoms themselves?
• Atoms that form bonds through the donation and acceptance of electrons create which type of bond?
• Which part of the heart receives oxygenated blood from the lungs?
• Which of the following industries benefits from advancements in mathematical skills?
• A proton should have what two characteristics when compared to the charge and the mass of an electron?
• Which of the following structure types is composed of specialized cells working together?
• Which method is least useful in conducting quantitative scientific research?
• What are the six parts of a scientific argument?
• Nucleotides are to DNA as amino acids are to ____?
• Which of the following statements best describes dark matter?
• Which of the following is an example of hydrocarbons containing double bonds?
• Which system regulates body functions through hormone secretion?
• What organ system supplies the body with oxygen and removes carbon dioxide?
• What effect does nicotine have on blood vessels?
• What is the primary role of salivary amylase in digestion?
• Which part of a scientific investigation focuses on posing specific queries?
• Which of the following best describes the relationship between mathematics and technology?
• Which system is primarily responsible for gas exchange in the body?
• What characteristic of acids is represented by a pH value less than 7?
• In a Punnett square, what is demonstrated by the alleles of the parents?
• Receiving a vaccination against a particular disease results in which of the following types of immunity?
• Specific molecules combining form what?
• Which of the following is a significant impact of smoking on lung tissue?
• During which process does RNA relay information to the ribosomes?
• What does a pH of 7 indicate about a solution?
• Why does water undergo minor temperature and phase changes compared to other substances?
• True or False: The nervous system directs bodily defenses against external stimuli.
• Which type of bond is primarily responsible for base pairing in DNA strands?
• Which of the following is a property of bases?
• Meiosis occurs in which of the following cells?
• What is the probability that a child will be affected by cystic fibrosis if both parents are carriers?
• If a normal (AA) male and a female with the disease (aa) mate, what percentage of offspring will be carriers of the disease?
• What is the concentration of hydrogen ions in water with a pH of 7?
• If each parent has a parent with cystic fibrosis and neither are affected, what is the child’s probability of being affected?
• How are clouds formed concerning water vapor?
• Which system is essential for cleansing the blood and housing white blood cells?
• What organ is associated with nervous tissue?
• What principle is essential for scientific explanations?
• Which process is essential for the exchange of gases in the lungs?
• A research student predicts that rats raised in a stimulating environment will learn faster than rats raised in an isolated environment. This corresponds with which step in the scientific method?
• In which of the following parts of the gastrointestinal tract does the absorption of water primarily occur?
• What is the primary function of the circulatory system?
• Through what does blood pass after leaving the right ventricle during contraction of the heart?
• What substance leads to cellular changes and loss of elasticity in lung tissue due to smoking?
• A large saturated hydrocarbon will contain what relationship between hydrogen and carbon atoms?
• The spine is part of what system?
• Which taxonomic rank is the most general?
• Which of the following taxonomic ranks are the most specific?
• In a medication study, what is the term for the group that is given a placebo?
• What types of energy are most involved when an automobile traveling at 60 miles per hour comes to a rapid stop?
• What organ is responsible for detoxifying chemicals and metabolizing drugs?
• Which type of reasoning involves forming general conclusions based on specific observations?
• What is the result of all organ systems working together within the body?
• A test that stops DNA polymerase will:
• Which of the following processes is primarily responsible for cellular respiration?
• Which nitrogenous base is unique to RNA?
• 2 or more tissue types work together to perform a specific function at what level?
• Which system acts as the body's control system, responding to changes in the environment?
• Which of the following is a reason for conducting scientific investigations?
• Which of the following best describes a benefit of numerical models in scientific research?
• What is the correct hierarchy of the structure of the human body from largest to smallest?
• After the right ventricle contracts, where does blood flow next?
• Which of the following represents an investigation that has led to significant new designs for improving quality of life?
• A substance with a pH of 7.0 when dissolved in water is classified as what?
• The respiratory system is responsible for supplying the body with what essential gas?
• What abdominal muscle contracts to help pull air into the lungs during inspiration?
• Which mineral is primarily stored in the skeletal system?
• True or False: Blood enters the right ventricle after contraction of the right atrium.
• What is the primary function of the skeletal system?
• What do DNA codons encode?
• Which type of RNA carries amino acids to the ribosome during protein synthesis?
• What organelle is responsible for energy production in cells?
• Which gas is primarily removed from the body by the respiratory system?
• During cell replication, which material is duplicated by polymerase enzymes?
• What is responsible for the peristalsis that occurs in the digestive tract?
• What occurs when the diaphragm relaxes, leading to the expulsion of air from the lungs?
• Which organ system is responsible for supplying oxygen and nutrients to body cells?
• What is considered a major disadvantage of personal bias in scientific investigations?
• True or False: Blood entering the pulmonary artery passes through the mitral valve.
• During which of the following stages of interphase is mRNA synthesized?
• During which of the following stages of development do individual tissue layers begin to form?
• In a chemical reaction involving calcium and sulfuric acid, what is the key result?
• Which structure in a cell is responsible for protein synthesis?
• Which health problem is likely to be common to both chewing tobacco and cigarettes?
• Muscle tissue is primarily located in which part of the body?
• What is true about fertility rates in less developed countries?
• Which nervous system is responsible for the body's fight or flight response?
• What is the term for the propulsion of food through the gastrointestinal tract?
• What describes a substance that is completely ionized in its solution and has a pH of 2?
• Which of the following best describes the role of lysosomes?
• Phenotypes are seen due to the production of ___ from the genotypic code found in the cell nucleus.
• In a study examining the effects of extracurricular involvement on college entrance exam scores, what type of variable is extracurricular involvement?
• What aspect of scientific arguments is crucial for developing reliable conclusions over time?
• Which of the following is the term given to multiple forms of a gene that are produced by mutation?
• Which part of the brain is primarily responsible for regulating balance and coordination?
• Which system helps maintain water and electrolyte balance in the body?
• What process allows a species to better adapt and reproduce over generations?
• What can be inferred from the analysis of two soil samples?
• What type of energy is proposed to explain repulsive forces between matter in the universe?
• Which organelle is primarily responsible for cellular waste recycling?
• What does chronic exposure to tar in cigarettes primarily cause?
• What is the correct order of the scientific process?
• Why is mathematics essential for scientific research?
• True or False: Blood passes through the tricuspid valve before entering the left ventricle.
• Which of the following statements about atoms is correct?
• True or False: The nervous system regulates heart and breathing rate.
• In which part of human genetics do mutations originate?
• How have fiber optics impacted corporate communication?
• What property of water is responsible for the sensation of a "slap" when a belly flop is performed in a swimming pool?
• What effect does a drug that stops the function of DNA polymerase have on DNA?
• What is the primary function of the digestive system?
• What factor distinguishes autotrophs in the production of energy?
• What is the neutron and electron count for a neutral isotope of iridium with a mass number of 191?
• What is the function of the reproductive system?
• Which statement about scientific hypotheses is correct?
• What are the smallest units of elements that retain all original properties?
• Where does the breakdown of proteins by protease begin?
• What critical role do different cell types play in differentiation?
• What organ in the human body produces bile that starts the breakdown of fat?
• Which system is vital for communication between different parts of the body?
• What is the basic unit of life?
• What is the primary function of the urinary system?
• The cause of cell differentiation is that different cells:
• What protein, along with actin, forms the bands in a muscle sarcomere?
• True or False: The nervous system supplies the body with oxygen and removes carbon dioxide.
• Which term describes the involuntary contractions that move food through the digestive tract?
• A research student is determining the pollen count for a 24-hour period in a given location. The students data would be most reliable if he decided to count the pollen in what?
• Which of the following elements is considered the best electrical conductor?
• What happens to blood after contraction of the left ventricle?
• What term describes a significant change in geological theories?
• What gives the rough endoplasmic reticulum its characteristic texture?
• What is the highest level of organization in biological structures?
• What is the primary function of ribosomes in a cell?
• The heart is located ________ the sternum?
• What is the underlying mechanism by which nicotine affects the cardiovascular system?
• In medical terms, what does bronchitis refer to?
• The liquid state of a substance is considered to have what type of shape and volume?
• What is the role of the integumentary system?
• Which body system is primarily responsible for supplying the body with oxygen?
• Which structure is primarily responsible for the absorption of nutrients in the digestive system?
• If two gases (A and B) that have detectable odors and the same temperature are released simultaneously on one side of a room, and the odor of Gas A is noticed one minute before that of Gas B, what conclusion can be made?
• Which of the following pulls air into the body during inspiration?
• What organs are immune cells produced?
• The spleen and thoracic duct are part of which system?
• Where within the human body is epithelial tissue located?
• Mutations in which type of cells can be inherited by future generations?
• What type of bonding occurs in water, resulting in a specific ratio of hydrogen to oxygen?
• What internal factor drives enzyme activity?
• What type of bonds exist between carbon and hydrogen in a methane (CH4) molecule?
• Cells combine in terms of function and type to form what?
• Why is scientific research often dependent on technology?
• For a given substance, the gas phase (compared to the liquid phase) is considered to have ___ intermolecular attractions and to exist at ___ temperatures.
• What begins to break down fats in the small intestine?
• What is the role of the pulmonary valve?
• What is the best way to test the hypothesis that soy is a superior diet for beetles over whole wheat?
• Which component of blood is primarily responsible for oxygen transport?
• Which of the following is NOT a function of the nervous system?
• What system is responsible for facilitating movement in the body?
• What is the best direct method for assessing global climate change over time?
• Which nervous system response causes an increase in blood pressure, pupil dilation, and dry mouth due to anxiety?
• What structure in the lungs allows the exchange of gases between the blood and air?
• How does a Punnett square help predict the genotype of offspring?
• How many organ systems are there in the human body?
• What is the final step of a scientific argument?
• What is the kinetic energy of a 2-kilogram mass traveling at 3 meters/second?
• Which by-product of cellular respiration is used by autotrophs to produce glucose?
• In which of the following is urine stored in the human body?
• Which system is responsible for the contraction of muscles?