If auxin transport was limited at shoot tips, what would occur?
A. Leaf primordia formation would be limited to the cells where auxin was transported.
B. No new leaves would form.
C. It would result in increased formation of leaf primordia at many locations.
D. It would have no effect on leaf formation.
Answer: A
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Which of the following is NOT an effect of smoking
just a single cigarette? a. The cilia of cells lining airways accelerate their removal of airborne pathogens and pollutants. b. Patrolling white blood cells are killed. c. Debris begins to clog airways. d. Biofilms of pathogens begin to build up. e. Susceptibility to disease is increased.
A carrier molecule is required for
A. osmosis and active transport. B. active transport and facilitated diffusion. C. osmosis and diffusion. D. facilitated diffusion and endocytosis.
A fundamental difference between bacterial and archaeal membranes is that ________.
A. archaeal membranes must be able to solidify due to the extreme habitats the organisms occupy B. archaeal membranes have a hydrophobic exterior and a hydrophilic interior vs. the reverse in bacterial membranes C. bacterial membranes are always comprised of phospholipid bilayers, whereas archaeal membranes can be bilayers or monolayers D. the phospholipids in archaea are comprised of a glycerol molecule and three fatty acids vs. two fatty acids in bacteria
What process does wine go through in order to prevent it from turning to vinegar?
A. Filtration B. Pasteurization C. Irradiation D. Distillation E. Autoclaving