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What is the study of the body at the cellular level is called?
cytology
The ___ acts as a barrier that encloses the entire cell, & controls the transport of many substances to and from the cell.
cell membrane
Within the cell membrane is a jellylike matrix of proteins, salts, water, dissolved gases, and nutrients called ___.
cytoplasm
Inside the cytoplasm are various structures called ___ that provide specialized functions for the cell.
organelles
The largest cell organelle is the ___.
nucleus
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