Energy from electron transport reactions is stored as a ________ gradient that is higher in the intermembrane space than in the mitochondrial matrix.
A) electron
B) ATP
C) proton
D) NADPH
C) proton
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Which cells in a root form a protective barrier to the vascular system where all materials must move through the symplast?
A) pericycle B) cortex C) epidermis D) endodermis E) exodermis
After a fertility analysis, it is determined that the semen a man produces has the appropriate number of functional sperm cells, yet he is still having problems with his fertility
This indicates that something other than the sperm is causing the problem. List one potential structure that could be causing the problem and what the problem would be.
Which of the following types of reactions would decrease the entropy within a cell?
A) anabolic reactions B) hydrolysis C) digestion D) catabolic reactions
Unlike a single-celled organism, the cells of a multicellular organism can
A. migrate or move to new locations. B. replicate their genomes. C. grow larger by taking up nutrients. D. divide into new cells. E. differentiate into specialized cells.