14. The lower the pH of a solution, the
A. greater the number of oxygen atoms
B. more acidic the solution
C. less toxic the solution
D. higher the OH” concentration .
E. more basic the solution
15. Which of the following molecules are produced in light-dependent reactions of photosynthesis?
A. ATP and NADH
B. NADPH and CO2
C. ATP and NADPH
D. None of the above
16. Water is a
A. A polar molecule
B. Will bond easily with hydrophilic molecules
C. Will not bond with hydrophobic molecules g
D. All of the above is true
17. Photosynthesis contributes to plant growth by
A. taking in oxygen and making wood
B. taking in carbon dioxide and making sugars-(carbohydrates)
C. synthesizing carbon dioxide and making cellulose
D. converting sugar to oxygen and water
E. releasing the energy in cellulose to make new leaves and roots
18. The second electron shell of an atom can hold a maximum of electron(s).
19. As water freezes
A. its molecules move farther apart
B. it absorbs energy from the surrounding environment
C. it cools the surrounding environment
D. it’s hydrogen bonds break apart
E. it loses its polarity.
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