Why is cell communication considered evolutionarily ancient?
What will be an ideal response?
Some protein components of cell communication pathways are the same in prokaryotes and
eukaryotes. Some entire cell signaling pathways are conserved between distantly related organisms,
for example, Drosophila and humans.
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The "fluid mosaic" model of the plasma membrane describes the plasma membrane as a solid, inflexible structure with a certain distribution of proteins that does not vary from cell to cell
a. true b. false
ATP formation in the electron transport system is called ________.
Fill in the blank(s) with the appropriate word(s).
In_______, cells are tagged with a fluorescent dye and injected into a flowing, progressively narrowing stream of fluid, forcing one cell at a time through a laser beam that scatters its fluorescence to a detector.
What will be an ideal response?
A population of people who have lived in the middle of the jungle for thousands of years without coming in contact
with other individuals would show evidence of: a. genetic stasis. b. polymorphism. c. random mating. d. genetic equilibrium. e. increasing non-harmful alleles.