.................. is -the- Outer boundary - Encloses the cell and separates the cell interior called cytoplasm from its surrounding (allows only certain substances to pass in or out including gases, nutrients and wastes).

.........- Within the cytoplasm are many structures suspended in a system of microscopic protein fibers.

..........- This is a jelly-like fluid that fills the interior of the cell. - Cell organelles are suspended in the cytoplasm.

..............: single celled organisms without a nucleus or any membrane-bound organelles.

............have nuclei containing DNA. Have organelles outside the nucleus with specific functions to perform

Smallest cell is ...........0.002 mm

If the cell’s surface area-to-volume ratio is ........., substances can’t enter and leave the cell easily to meet its demands.

Cells are the basic unit for both .......and ........

All living organisms are made of one or more .........

Biggest cell is ........

.........: - Provides instructions for making proteins.

...........- Cell structures that make proteins

A ...........molecule is a lipid made of a phosphate group and 2 fatty acids.