18. In bacteria-size mitochondria, both plant and animal cells produce _______, expelling _______ in that process.
A. glucose, water
B. glucose, oxygen
C. ATP, water
D. ATP, oxygen
19. If you're a fat molecule forming the inner layer of a cell membrane, your head will face toward
A. the watery environment outside the cell.
B. the watery environment inside the cell.
C. either the inside or the outside of the cell.
D. the protein pump in the cell.
20. I invented the basics of sexual reproduction, getting around from place to place, and how to use energy from the Sun. Who am I?
A. Bacterium
B. Multicellular organism
C. Chain of DNA
D. Cooperating cell community
2006-06-05
18:22:56
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12 answers
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asked by
Anonymous