The difference between an electrically neutral atom and an ion is that:a
an ion has an unequal number of protons and electrons, while an atom has an equal
number.
b. an ion has an equal number of protons and electrons, while an atom has an unequal
number.
c. an atom has an unequal number of neutrons and protons, while an ion has an equal
number.
d. an atom has its electrons in orbitals, while an ion has its electrons in its nucleus.
e. an atom must have an equal number of neutrons and electrons, while an ion does not.
A
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The ATP synthase complex in the thylakoid membrane
A) contains an embedded CF1 component and a protruding CFo component. B) is identical to the FoF1 complex of mitochondria. C) performs photophosphorylation in oxygenic phototrophs. D) contains an assembly of hydrophobic polypeptides that function in ATP synthesis. E) all of the above
A microbiologist Gram stains a bacterium and finds the bacterium to be blue to purple in color. This identifies the
A. bacterium as gram-positive. B. bacterium as a disease-causing organism. C. bacterium as an endospore former. D. species of bacterium. E. bacterium as gram-negative.
Which organism can be considered a predator?
A) dandelion B) wood warbler C) honey bee D) cow
Which of the following proteins are part of the first line of defense against microbial invasion?
A) dermcidins B) TLRs C) NOD proteins D) C3 and C5 E) interferons