Most carbon dioxide is transported in the blood in the form of bicarbonate. Indicate whether the statement is true or false
True
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In comparison to bacteria that do have cell walls, ________ is a consequence of mycoplasmas lacking a cell wall
A) larger cytoplasmic volume B) frequent existence as obligate symbionts C) higher sensitivity to osmotic lysis D) inability to survive protoplasts lysing conditions
One surprise from comparative genome projects is that
A) all species examined so far have the same genes. B) we do not know the function of a great many genes. C) small organisms can have large genomes. D) large organisms can have small genomes.
Each of the following can be the final electron acceptor in bacterial aerobic or anaerobic respiration except
A) sulfur. B) hydrogen ions. C) Fe3+. D) oxygen. E) pyruvate.
A mutation results in the loss of the finger-like cell wall ingrowths found in normal placental transfer tissues. What effect is this mutation most likely to have on the development of the embryo?
A. The embryo will be unable to develop because necessary sugars can no longer be transported across the plasma membrane. B. The embryo will be unaffected because plant embryos are not dependent on transfer of nutrients from maternal tissues. C. The embryo will develop at a slower rate because the rate of nutrient transfer from mother to embryo will be decreased. D. The embryo will be unaffected because the cell wall ingrowths of placental transfer tissues have no effect on nutrient transfer from maternal tissues. E. The embryo will develop too quickly because the rate of nutrient transfer from mother to embryo will be increased.