TEAS Science: Life and Physical Sciences (Quiz 2) Welcome to your TEAS Practice Quizzes. Note: We designed Two (2) sets of practice quizzes for this Domain. Each set has 30 questions. TEAS Science (quiz 2): Life and Physical Sciences. (30 questions) Please click NEXT to start your Free TEAS Practice Quizzes right away. Best of Luck! 1. Which of the following substances will not dissolve in water? NH4NO3 Mg(OH)2 NaCl C2H5OH None 2. Which of the following statements correctly describes “sublimation”? The transition of a substance from solid to gas without passing through the liquid state A transition between two gases The transition of a liquid to solid A transition between two types of liquid None 3. Correctly identify X in the reaction below: 210⁄84 Po → X + 4⁄2 He 206/82 Pb 218/84 At 214/86 Pb 214/86 He None 4. Which of the following traits are inherited from parents to offspring? Scars Tattoos Bruises Eye color None 5. Predict the missing product of the following reaction: Zn + 2AgNO3 → 2Ag + _________ Zinc nitrite Zinc nitrate Zinc oxide Silver nitrate None 6. Atomic mass does not include ________ in its calculation. The atomic number of an element is the number of ___________. electrons; protons neutrons; protons protons; neutrons electrons; neutrons None 7. Which of these functions is NOT carried out by proteins? Insulating internal organs in the body Forming catalyst molecules Protection of the body from foreign substances Muscle movement None 8. Enzymes are biological catalysts that ___________. Bind to the products Are necessary to convert substrate into products Use up the substrate molecules in the reaction Increase the rate of any given reaction None 9. Which of these statements best reflects the role of genes? Genes code for enzymes only. Genes codes for functional molecules like RNA only. Genes code for enzymatic proteins, non-enzymatic proteins, and RNA. Genes code for non-enzymatic proteins only. None 10. Which of these units code for a protein? Chromosome Nucleotide Nitrogenous base Gene None 11. Which of the following statements best describes the function of mRNA? mRNA transfers accurate amino acids into ribosomes for protein synthesis. mRNA carries a transcript that aids in transcription. mRNA stores the primary genetic information. mRNA carries the coding sequence that directs translation. None 12. rRNA is responsible for which of the following functions? rRNA transfers the DNA code to the mRNA strand for protein synthesis. rRNA translates amino acids into proteins by binding to mRNA, tRNA, and accessory proteins. rRNA attaches mRNA to tRNA to transfer the codon on tRNA. rRNA transfers amino acid to tRNA for protein synthesis. None 13. Which of the following correctly defines genotype? Genotype is a specific combination of alleles found in an individual. Genotype is when one allele suppresses the activity of another allele in an organism. Genotype is a variation of a gene found in the individual. Genotype is the expression of the alleles, those observed in the form of traits in an organism. None 14. The presence of two varying alleles of a gene is called a ____________ individual. Heterozygous Mutated Homozygous Recombinant None 15. An atom has 5 protons, 2 neutrons, and 5 electrons. Which of the following is the atom’s mass number? 12 5 7 10 None 16. The number of ________ is the same across a period but increases when moving down a group? anions electron shells isotopes cations None 17. Which of the following characteristics applies to the bonds holding together nonpolar covalent molecules? They can be formed only between two identical atoms They occur when two atoms share a pair of electrons with each other They occur when two atoms share a pair of metal ions with each other They can be formed only between two different atoms None 18. Which of the following statements about osmosis is true? Osmotic pressure is the main cause plant cell death Osmosis is the diffusion of salt Osmosis involves a selectively permeable membrane Osmosis involves the movement of water from regions of high solute concentration to regions of low solute concentration. None 19. Which of the following components can be found in a phase graph? A “critical point”where the substance is indistinguishable between solid and gaseous states A “triple point” where three slightly different types of solid coexist Pressure and time as its axes Temperature and pressure as its axes None 20. The amount of movement within a substance: Depends on the state of matter of the substance Is a characteristic only of liquids Is a characteristic only of solids Is a characteristic only of gases None 21. How many moles of O2 will be produced when the reaction below is properly balanced? H2O2 → H2O + O2 1 mole 2 moles 3 moles 4 moles None 22. Which of the following is an example of a redox reaction? Combustion Acid-base neutralization Single replacement reaction Synthesis None 23. When going to the grocery store, you need to purchase some vegetables, which are sold by weight. Which of the following units would the weight of the vegetables be expressed in? Pascals Kilograms Newtons Coulombs None 24. Which of the following is not an SI base unit? Kilogram Meter Second Liter None 25. Which of the following statements is true? A single-blind experiment helps reduce researcher bias. A double-blind experiment is always more accurate than a single-blind experiment. A single-blind experiment eliminates all unknown variables. A double-blind experiment controls all variables. None 26. Which of the following correctly describes a conclusion? An evidence-based judgment A list of experiments you conducted The methods used to conduct an experiment The data set obtained during an experiment None 27. Steps involved in natural selection include: 1. Differing survival rates when faced with environmental challenges. 2. Preservation of genetic traits of best-adapted offspring. 3. Overproduction of offspring that have different variations in genetic traits. Which of the following is the sequence in which these steps take place? 3,1,2 1,3,2 2,1,3 1,2,3 None 28. A nurse has to give a patient a tablet drug. Which of the following are the best units to use when writing in the chart how much of the drug was delivered? L of drug/kg of patient’s body weight cm of drug/kg of patient’s body weight mL of drug/mg of patient’s body weight mg of drug/kg of patient’s body weight None 29. Dissolved oxygen (DO) is an important indicator of water quality, and oxygen levels that are too high or too low can harm aquatic ecosystems. A biologist noticed that fish were dying in a local lake and was concerned that the DO levels were too low to support aquatic life due to extremely high temperatures that summer. To measure the DO levels, she brought back several lake water samples to her laboratory to measure the DO concentration as a function of temperature. To do this, she heated several samples of lake water to various temperatures and then measured the DO concentration in each sample. Some samples were kept at the outdoors temperature. Why were some samples kept outdoors? To calibrate the thermometer To act as a control group To minimize researcher bias To allow a maximum amount of oxygen to dissolve before measurement None 30. Proper design of an experiment must maximize _______ and minimize ________. experimental variables; bias bias; accuracy and precision accuracy and precision; bias data; error None 1 out of 30 Time is Up! Time's up
