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Author Archives: Anonymous

Which subatomic particle is located in the nucleus and carri…

Which subatomic particle is located in the nucleus and carries a positive charge?

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A substance that resists changes in pH by releasing or absor…

A substance that resists changes in pH by releasing or absorbing hydrogen ions is called a(n):

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In a phospholipid bilayer, the hydrophilic “heads” of the mo…

In a phospholipid bilayer, the hydrophilic “heads” of the molecules orient:

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Diffusion of molecules across a membrane with the help of a…

Diffusion of molecules across a membrane with the help of a protein channel, but without the use of energy, is called:

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The cell (plasma) membrane is composed primarily of a double…

The cell (plasma) membrane is composed primarily of a double layer of:

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Movement of molecules from an area of high concentration to…

Movement of molecules from an area of high concentration to an area of low concentration, without the use of cellular energy, is called:

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Molecules that share the same molecular (empirical) formula…

Molecules that share the same molecular (empirical) formula but differ in structure are called:

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The atomic number of an element is defined as the number of:

The atomic number of an element is defined as the number of:

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When electrons are shared unequally between two atoms in a b…

When electrons are shared unequally between two atoms in a bond, the bond is described as:

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What does the suffix “-ology” mean, as used in the word biol…

What does the suffix “-ology” mean, as used in the word biology?

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