Chapter 3 Station 6 BASIC CELL ANATOMY

(~75%): contains a polar (charged, hydrophilic) head and a nonpolar (uncharged, hydrophobic) tail; readily forms the lipid bilayer

(~25%): present in much smaller amounts in the lipid bilayer compared to phospholipids; contributes to the fluid nature of the membrane

describes the plasma membrane as being neither rigid nor static in structure, but instead has a highly flexible structure and can change its shape and composition through time.

• These are protein molecules that are attached to, or associated with, the cell membrane or with an organelle • Based on location: integral or peripheral

_____is the material outside the nucleus and inside the plasma membrane?

____ consists of a fluid part (the site of chemical reactions), the cytoskeleton, and cytoplasmic inclusions?

The _____ supports the cell and is responsible for cell movements. It consists of protein fibers?

_____ _____, such as lipochromes, are not surrounded by membranes?

______ are structures within the cells that are specialized for a particular function?

The nuclei of human cells contain __ ____ of _______ w/c consists of DNA and proteins?