TEAS 7 Scientific Reasoning Practice Test

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• What best describes a negative control group?
• If conclusions support the original hypothesis, what should the scientist do?
• Which SI unit measures luminous intensity?
• What is the difference between ionic bonds and covalent bonds?
• How do enzymes affect activation energy of a reaction?
• Which instrument is used to measure very small volumes of liquid with precision?
• Which SI unit measures volume?
• Which statement best describes the relation shown by a line graph with a positive slope?
• What information does a pH value indicate about a solution?
• Which prefix represents 10^9 in the metric system?
• Which of the following is a connective tissue?
• Which substance is characterized by reacting with zinc to produce hydrogen gas?
• Which term describes a change from one state to another without a chemical change?
• What is repipette?
• Which type of studies are usually the first form of study in a new area of scientific inquiry?
• If a sample has a mass number of 23 and an atomic number of 11, how many neutrons does it have?
• Which statement describes why scientists publish conclusions?
• Which gas is known as a compound gas?
• If the results do not support the hypothesis, the results should be used to
• Parathyroid glands are typically located on the posterior aspect of the thyroid gland.
• First step of the scientific method?
• Afferent lymphatic vessels carry lymph
• In neurons, which structure primarily transmits impulses away from the cell body?
• Which statement accurately describes the DNA backbone and base pairing across the double helix?
• Condensation is the process of:
• Which sequence correctly represents the cellular hierarchy from smallest to largest unit?
• Which of the following best describes the role of antibodies produced by white blood cells?
• What happens when a buffer's capacity is exceeded by added acid or base?
• Which phase change is described as liquid turning into gas?
• What best describes the active site of an enzyme?
• Lactase functions as a catalyst in the digestion of lactose. It is:
• Which organ is primarily responsible for detoxification and metabolism of nutrients, and stores energy as glycogen?
• Which SI unit is used for temperature?
• Gases expand to fill:
• Which of the following is a connective tissue that stores fat?
• Which instrument is used to measure the volume of a liquid?
• Which statement best describes the need to identify independent and dependent variables in a study?
• Water’s ability to dissolve many substances is largely due to which property?
• Which of the following best describes an observation?
• Which prefix represents 10^3 in the metric system?
• What part of the respiratory system is the site of gas exchange between air and blood?
• Which statement about catalysts in chemical reactions is true?
• Which term means farther from the trunk of the body?
• After observations reveal trends, what will the scientist do with the results?
• What role do mitochondria play in programmed cell death (apoptosis)?
• What type of macromolecule are enzymes, and what is their general role?
• The amount of substance at the molecular level is quantified by which unit?
• Which statement describes the primary function of the alveolar-capillary membrane in respiration?
• Why should an experiment be controlled?
• Which prefix represents 1,000 in the metric system?
• Where are the parathyroid glands typically located relative to the thyroid gland?
• What term describes a dominant-recessive allele relationship where the heterozygote expresses the dominant trait?
• In the material, evaporation/vaporization refers to which phase change?
• Tachycardia is defined as what?
• If an atom's outer electron shell is filled, what is the most likely characteristic?
• Which phase change is described as solid turning directly into gas?
• Which factor would NOT increase the rate of a chemical reaction?
• Which organ system transports hormones to target organs?
• What is a common pitfall when interpreting correlations in scientific studies?
• What is a pipette?
• Which types of chemical bonds involve sharing electron pairs between atoms?
• Materials whose atoms feature tightly bound electrons are best described as:
• The spleen contributes to immunity by:
• Which base pairs with cytosine on the opposite DNA strand?
• What is formed after the problem is defined sufficiently to form a hypothesis?
• Diffusion is the movement of solutes from high to low concentration; osmosis is diffusion of water across a semipermeable membrane.
• Which organ produces bile and is involved in metabolic regulation, detoxification, and storage of nutrients?
• Which term describes a generalized statement derived from observations?
• Materials whose atoms feature tightly bound electrons are described as:
• Which prefix represents 10^1 in the metric system?
• Which unit is used to express the volume of a liquid?
• A salt is formed from:
• Which statement best describes the relationship between the ileum and the large intestine?
• Observations may be
• What best describes an enzyme's active site?
• Which term refers to a change of state without chemical change?
• Which type of bonds connects sugar and phosphate in DNA backbone?
• What is the purpose of a control group in an experimental study?
• Which statement best describes the function of the large intestine?
• Which statement correctly pairs the direction of lymph flow with the lymph nodes?
• Which component of blood is primarily involved in immune response and inflammation?
• The humerus is an example of which category of bone?
• Which item is used to contain liquids and mix?
• Which vessels have the lowest blood pressure?
• Which base pairs with adenine on the opposite strand of DNA?
• The hypodermis is described as which type of tissue?
• What is the primary function of white blood cells in the immune system?
• In a cross between two heterozygous individuals for a single dominant-recessive trait, what phenotypic ratio is expected among the offspring?
• Descriptive studies are a research method that involves which of the following?
• Which enzyme initiates protein digestion and where is it produced?
• What is the term for a collection of organs that work together to perform broad physiological tasks?
• The number of protons in an oxygen atom is:
• Which blood vessel type carries blood away from the heart and commonly has thick muscular walls?
• Which organ system includes the skin, and what is its role in protection and thermoregulation?
• A valid experiment must be _________?
• A buffer resists changes in pH. Which statement explains how buffers work?
• Which macronutrient yields the most energy per gram?
• Which unit measures the amount of substance at molecular level?
• Where can ribosomes be located within a typical eukaryotic cell?
• Descriptive studies are most useful for which purpose?
• Which tissue type is often associated with cushioning and energy storage?
• Which of the following is NOT an example of an extensive property?
• In a controlled experiment, keeping all other conditions constant helps ensure...
• Which organelle is primarily responsible for energy production in cells via respiration?
• The backbone of DNA is formed by bonds that connect sugar and phosphate through:
• Which instrument is used to measure mass precisely?
• The key to making the best possible use of an experiment is
• What does hecto mean in metric prefixes?
• The spleen is the largest organ of the:
• Which particle determines an element's identity and the number of protons?
• In the material, condensation refers to which phase change?
• Which structure is not a primary part of the respiratory system?
• The spleen is the largest organ of the:
• What is the difference between mitosis and meiosis, and what are their primary purposes?
• What is a meniscus?
• Adding a catalyst to a reaction will
• When interpreting a bar graph, what indicates a significant difference between groups?
• What is Hardy-Weinberg principle used to describe?
• Which SI unit measures mass?
• In photosynthesis, which gas is fixed and released by plants, and in which organelle do the light-dependent reactions occur?
• Which experimental design principle helps ensure that each participant has an equal chance of being assigned to any group?
• Which blood component is primarily responsible for oxygen transport?
• Which term describes the variable that the researcher measures to determine the effect of the independent variable?
• If the alveolar-capillary membrane thickens due to disease, gas exchange becomes...
• What is the dependent variable?
• Which statement best describes the function of the ileum?
• What is the basic unit of life and the primary unit of structure and function for organisms?
• Which organ produces bicarbonate to neutralize stomach acid?
• Which statement about osmosis is true?
• What is the independent variable in an experiment?
• Efferent lymph carry lymph
• What best describes a positive control group?
• Which of the following is an intensive property?
• Which structure is NOT part of the respiratory system?
• In an experiment, the control group is defined as:
• Which instrument is used to measure volume of a liquid with precise markings?
• Which statement about the scientific method is most accurate?
• Which statement about activation energy and enzymes is correct?
• Which organ reabsorbs water to form solid waste?
• In aerobic cellular respiration, which organelle houses the electron transport chain where most ATP is produced?
• Which pair correctly matches the quantity with its SI unit?
• In genetics, what is an allele?
• Which instrument is used for dispensing liquids during titrations?
• Which statement best describes the function of the endocrine system?
• Which organ is primarily responsible for filtration and urine formation in humans?
• Alkaline Earth Metals (Group 2) are described as
• Which of the following lists correctly represents the elements in Group 2, the alkaline earth metals?
• Which term means close to the trunk of the body?
• The experiment should be a _________ procedure describing the materials needed and the set-up of the experiment, as well as observations and measurements that will be made.
• The hypodermis is a loose connective tissue layer located below the dermis. Which of the following best describes its position?
• What is the key difference between a hypothesis and a theory?
• To determine the average number of neutrons, which operation is used?
• In the material, sublimation refers to which phase change?
• Which type of simple sugar is a monosaccharide that serves as a building block for larger carbohydrates?
• Lactic acid buildup in muscles during high-intensity exercise occurs due to what metabolic condition?
• Which organ produces bicarbonate to neutralize stomach acid?
• What is the role of the pancreas in digestion?
• Which statement about the relationship between photosynthesis and respiration is correct?
• Which unit measures electric current?
• What term describes groups of cells that perform the same function?
• Hydrogen bonds between water molecules primarily contribute to which property of water?
• Which cellular structure is the site where signaling molecules cross to pass information from one neuron to another?
• Which instrument is used to measure small volumes of liquid?
• Which molecule carries energy immediately usable by cells in metabolism?
• What is the basic unit of heredity that occupies a fixed position on chromosomes?
• During titrations, which device allows precise delivery of a titrant?
• In the water's pH scale, what pH range would be considered neutral at 25°C?
• In nerve cells, which structure is the functional unit that transmits impulses?
• In photosynthesis, which organelle houses the light-dependent reactions?
• Which statement about diffusion is accurate?
• Why is homeostasis considered a negative feedback mechanism?
• Which of the following is not a type of connective tissue?
• Which term describes the back side of the body?
• How does a vaccine typically contribute to immunity?
• What is the primary function of the heart's right ventricle?
• Ionic bonds typically form between which types of elements?
• A controlled experiment is characterized by which statement?
• Which process reduces chromosome number to produce haploid gametes?
• Circulate blood throughout the body is the function of the
• Condensation is defined as which of the following?
• Tachycardia is defined as:
• Which SI unit measures length?
• Which of the following does NOT affect the rate of a chemical reaction?
• Which level of biological organization includes multiple tissues working together to perform broad physiological tasks?
• What is the primary function of ribosomes in a cell, and where are they located in a typical eukaryotic cell?
• Which phase change is described as gas turning into liquid?
• What term describes groups of tissues designed to perform a specific function?
• Which structure is the primary site of gas exchange in the respiratory system?
• Which part forms the backbone of DNA?
• What is the purpose of a control group in experimental design?
• Increasing the concentration of reactants in a chemical reaction generally what?
• What is triple beam balance used for?
• Which statement best describes the relationship between photosynthesis and respiration?
• Which prefix represents 10^12 as listed in the material?
• Which statement best describes the pancreas's role in regulating blood sugar?