TEAS Science: Life and Physical Sciences (Quiz 1) 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 1): Life and Physical Sciences. (30 questions) Please click NEXT to start your Free TEAS Practice Quizzes right away. Best of Luck! 1. Movement of molecules in a substance depends on _______ energy. X-ray heat UV Gamma ray None 2. Which of the following carry the genetic code for all the functioning and characteristics of a cell? Fats Proteins Nucleic acids Monosaccharide None 3. Which of the following statements is true about covalent bonds? Covalent bonds form from the sharing of electrons between atoms Sigma bonds are the weakest covalent bonds The covalent bond between H-Cl is nonpolar Covalent bonds aren’t affected by the electronegativity of the atoms None 4. Which of these is an example of a monosaccharide? Glucose Starch Cellulose Glycogen None 5. Which type of chemical reaction is demonstrated by the reaction below? Ba(NO3)2 + Na2SO4 → BaSO4 + 2 NaNO3 Acid-base reaction Double replacement Single replacement reaction Decomposition None 6. Which of these nitrogenous bases are present in RNA? Guanine and uracil Adenine, guanine, thymine, and cytosine Adenine, guanine, uracil, and cytosine Thymine and cytosine None 7. Which of the following compounds contains ionic bonds? C6H6 CH4 O2 NaBr None 8. Which of the following correct states the role of DNA? Transcription of genetic information into RNA Protein synthesis It does not have any influence on hereditary and metabolic processes. It does not involve mutations. None 9. Which of these are the nitrogenous bases present in DNA? Adenine, guanine, thymine, and cytosine Adenine, guanine, cytosine, and uracil Adenine and thymine Guanine and cytosine None 10. Which of the following statements correctly describes the inheritance of traits in humans? Both the parents produce different haploid gametes via meiosis that fertilize to form a diploid zygote. Only one parent produces diploid gamete, while the other contributes to the phenotypic traits of the offspring. Both the parents produce similar diploid gametes via meiosis that fertilize to form a diploid zygote. Both the parents mitotically produce haploid gametes that fertilize to produce a diploid zygote. None 11. Isotopes are __________. versions of one element with a different number of neutrons versions of one element with a different number of protons types of valence shells special orbitals in metal elements None 12. In a redox reaction, oxidation is the _______ of electrons and reduction is the _______ of electrons. loss, gain loss, loss gain, loss gain, gain None 13. Which of the following statements is true? A phase diagram is a graph of physical states of a substance under varying pressures as a function of temperature. The triple point of a substance is the temperature and pressure at which three phases of a substance may coexist in thermodynamic equilibrium. Melting is the transition of a substance from a liquid to a solid. Melting is the phase transition of a substance from a gas to a liquid. None 14. Which of these statements is true about pH? Higher pH values indicate a higher [H+] Blood has an acidic pH A pH of 6 is more acidic than a pH of 8 Adding an acid to a solution will increase the pH None 15. Which of the following can be classified as an intensive property? Volume Entropy Density Mass None 16. Which of the following is a unique property of water? Its low surface tension Its exceptional low heat of vapourization Its volume decreases when freezing When freezing, water molecules can form hydrogen bonds more easily None 17. Which of the following is an example of a macromolecule that acts as a catalyst in biochemical reactions? Glucose Amylase Triglyceride Leucine None 18. Which of these is the start codon? UAA UAG UGA AUG None 19. Which of the hereditary units is responsible for carrying genetic information from parents to offspring? DNA Proteins RNA Amino acids None 20. Which of these is NOT a role of chromosomes? It inhibits the cell processes. It determines the sex of an individual. It determines height and color. It contains information for cell formation. None 21. The presence of genes contributes to the entire cell functioning and unique character traits. How are these genes inherited? The genes are always inherited from sperm cells during fertilization. The two alleles in a particular gene pair are inherited, one from the mother and one from the father, during fertilization. All the genes are inherited from the egg cell during fertilization. Genes are inherited when DNA moves from one cell to the other. None 22. What are alleles? Alleles are an alternate form of a gene. Alleles are heterozygous gene forms. Alleles are linked genes. Alleles are crossed-over chromosomes. None 23. Which of these acts as the first source of energy in the human body? Carbohydrates Proteins Fats Nucleic acids None 24. Which of the following correctly describes the function of codons? Codons encode the amino acid that translates into protein. Codons aid in mRNA synthesis. Codons help in the assembly of the final protein structure. Codons recruit tRNA to form proteins. None 25. Which of the following statements is true about hydrogen bonds? They don’t affect the properties of water in any way They form between a partial positively charged region on one molecule and the partial negatively charged region on another molecule They are considered strong attractive forces They result from the attraction between ions that have no charge None 26. Which of the following statements is true? Valence electrons reside in the innermost shell of an atom. An orbital is a space around the nucleus of an atom where an electron is likely to be found. An orbital is a space around the nucleus of an atom where a proton is likely to be found. The number of orbitals that an atom has is the same for all elements. None 27. Which of the following definitions is correct? Liquids have a constant volume but not a constant shape. Solids have neither a constant volume nor a constant shape. Solids lack a constant volume but have a constant shape. Gases have a constant volume and constant shape. None 28. Which of these is responsible for determining the sex of an individual? tRNA Proteins mRNA Chromosomes None 29. The same single-replacement reaction is run in two different beakers. The beakers are labeled as Beaker A and B and are heated to 75oC and 100oC, respectively. If the reactions are run for 15 minutes each, which of the following results would you expect to observe? Beaker B produces more product than Beaker A The two beakers produce the same amount of product No products are produced in either beaker Beaker A produces more product than Beaker B None 30. Br2 is classified as which of the following? Ion Atom Molecule Compound None 1 out of 30 Time is Up! Time's up
