Multiple Choice
In the context of small molecules and atoms, which subatomic particle is positively charged and located in the nucleus of an atom?
1
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2. Chemical Components of Cells
Small Molecules
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Which statement best describes the nucleus of an atom?
A
A membrane-bound compartment that stores energy-rich molecules for cellular metabolism
B
A dense central region containing protons and neutrons and accounting for most of the atom’s mass
C
A diffuse cloud of electrons that determines the atom’s mass and volume
D
A region composed primarily of protons and electrons held together by covalent bonds
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