Which of the following accurately describes ionic bonds? O A. Atoms share one or more protons.
O B. Atoms transfer one or more electrons.
O C. Atoms share one or more electrons.
O D. Atoms transfer one or more protons.

C. Atoms share one or more electrons.

Explanation:

Covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between atoms.

explanation:

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.