Most CO2 from catabolism is released during
A) glycolysis.
B) the citric acid cycle.
C) lactate fermentation.
D) electron transport.
E) oxidative phosphorylation.
Ans: B) the citric acid cycle.
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Based on the tree shown above, the sister group to small tree finches would be:
A. the group consisting of large and medium tree finches. B. large tree finches. C. medium tree finches. D. woodpecker finches. E. the group consisting of woodpecker and mangrove finches.
A key is placed into a keyhole then turned and the door opens. When considering the components of cell signaling, the action of turning the key would best correspond to ______.
A. signal transduction that occurs when the receptor binds the hormone B. the cell response that occurs when the receptor binds the hormone C. the concentration of the hormone D. conformational change in the receptor once bound to the hormone E. the binding site of the receptor
The endosymbiont theory states that chloroplasts originated
A) by spontaneous generation in the cytoplasm of an ancestral cell. B) by fusion of several prokaryotes. C) from cyanobacteria entering and remaining in the cytoplasm of another cell. D) by fusion of mitochondria and peroxisomes. E) through evolutionary change in a mitochondrion.
Connective tissue is different from the other major tissue types in that ________
A) it is made up of cells B) the cells are sparsely scattered through an extracellular matrix C) it is not made up of cells D) it is found only in humans