In some cells, there are many ion electrochemical gradients across the plasma membrane even though there are usually only one or two proton pumps present in the membrane. The gradients of the other ions are most likely accounted for by:

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#Question id: 296

#Section 2: General Biology

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.

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#Question id: 297

#Section 2: General Biology

The boiling point of water is exceptionally high because

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#Question id: 298

#Section 2: General Biology

Water molecules contain _____________ hydrogen bond/s.

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#Question id: 299

#Section 2: General Biology

Which bond acts like a bridge two molecules formed by a covalent bond?

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#Question id: 300

#Section 2: General Biology

Hydrogen bonding occurs in molecules when ___________________.

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#Question id: 301

#Section 2: General Biology

What explains the very high melting and boiling point of water?