What kind of bond is formed when one atom gains an electron and another atom loses an electron?

a. ionic

b. covalent

c. hydrogen

d. molecular


a

Anatomy & Physiology

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Chemistry deals with 

A. the composition of and changes to substances that make up living as well as non-living matter. B. the composition of and changes to substances found in organisms only. C. the location of organs in body cavities. D. the composition of and changes to substances that make up non-living matter only.

Anatomy & Physiology

Which of these ions have ligand-gated channels in the plasma membrane of nerve and muscle cells?

A) Cl- ions B) K+ ions C) Na+ ions D) Ca2+ ions E) all of these

Anatomy & Physiology

What is the main role of the mitochondria within cells?

a. detoxification b. recycling c. free radical scavenging d. power plant e. gene protecting

Anatomy & Physiology

Which of the following is NOT an example of carrier-mediated transport?

active transport cotransport facilitated diffusion osmosis

Anatomy & Physiology