- 23. What is the sum total of all the chemical reactions that take place in your body called?a. Catabolismb. Anabolismc. Embolismd. Metabolism
- 29. If you were looking at a cell under a powerful microscope, what would tell you that it is a eukaryotic cell?a. If has a cell membraneb. It has DNAc. It has organellesd. It is moving
- 24. Lipids are all _______.a. Hydrophonicb. Hydrophilicc. Hydrophobicd. Hydrolytic
- 25. Which combination describes the plasma membranea. A phospholipid bilayer with a hydrophilic interior, hydrophobic exteriorb. Hydrophilic interior and exteriorc. A phospholipid bilayer with a hydrophobic interior, hydrophilic exteriord. Hydrophobic interior and exterior
- 38.What harvests energy from sunlight to rearrange molecules in photosynthesis to make sugar?
- 20. Something with a pH of 5 would be ____a. Acidicb. basic
- 28. Organic molecules that end in the suffix "-ose" are most likelya. Structural supportb. Sugarsc. Transport mechanisms d. storage vessels
- 27. Organic molecules that end in the suffix "-ase" often function as ________.a. Structural supportb. Enzymesc. Transport mechanisms d. Storage vessels
- 22. What are the monomers of proteins?a. Hydrochloric acidsb. Nucleic acidsc. Carboxylic acidsd. Amino acids
- 19. A solution with a pH of 3 is ______ times more ______ than a solution of pH 4.a. 100, acidicb. 10, acidic
- 12. In chemical bonding, when the bonded atoms...a. An ionic bondb. Covalent bondc. A hydrogen bondd. A polar bond
- 15.Why is one side of a water molecule partially negative while the other side is partially positive?a. Even sharing of electron pairs occurs due to the strong pull of hydrogenb. Uneven sharing of electron pairs occurs due to the strong pull of oxygen, making mouse earsc. Oxygen donates its electrons to hydrogend. Hydrogen donates its electrons to oxygen
- 18. Select the most complete explanation of what the pH....a. The acidity of a solvent b. The alkalinity of a solventc. The concentration of hydrogen ions in a solutiond. The concentration of hydroxide in a...
- 10. The typical carbon atom is described in the periodic table by the accompanying....many protons are in a typical carbon atom?Remember: #electrons = #protonsa. 6b. 12c. 18d. None of the above
- 13. While the maximum number of electrons required to fill the outermost shell of an atom varies depending on the size of the atom, almost all of the smaller atoms are considered stable (nonreactive) when they contain ____ electronsa. 1b. 2c. 8d. 16
- 14. How do cells communicate?a. By telephoneb. Direct communicationc. Emaild. Carrier pigeon
- 21. Which of the following large organic molecules includes table sugar.a. Carbohydratesb. Lipids
- 16. Water "beads up" on synthetic fabric like polyester but binds to cotton. What is the most likely explanation for this?a. Polyester is not a continually occurring substance, whereas cotton is a naturally occurring substance b. Polyester is more .... Than cottonc. Polyester fibers are thinner than cotton fibersd. Polyester is nonpolar, whereas cotton is polar
- 6. All plants and animals are composed of what type of cellsa. Prokaryoticb. Eukaryoticc. Deciduousd. coniferous
- 8. The chemical name for table salt is sodium chloride, or simply NaCla. Compoundb. Elementc. Molecule d. ion