A phospholipid . Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a has both polar and nonpolar regions b is made up of a triglyceride bonded to a phosphate group c is a building block of ATP d can donate both cations and anions in solution

A phospholipid

a. has both polar and nonpolar regions.

Explanation:

Phospholipids, as amphipathic molecules, consist of a glycerol molecule, two fatty acids, and a phosphate group that is modified by an alcohol.  The phosphate group is the negatively-charged hydrophilic (water-loving) polar head, which face outward and are attracted to the intracellular and extracellular fluid.  The fatty acids are the uncharged, hydrophobic (water-fearing) nonpolar tails, which face the inside, away from the water and meet in the inner region of the membrane.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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