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Cell Structure and Function
selectively permeable, phospholipid bi-layer, the outer layer of a cell
controls the activities of the cell
protective layer surrounding the nucleus, selectively permeable
DNA, code for life
site of ribosome production
the fluid in which all organelles are suspended
Endoplasmic Reticulum (ER)
two types: smooth ER processes lipids (fatty acids) for energy; rough ER processes proteins, possesses ribosomes
site where proteins are made
collects and secretes protein
packaged protein, formed as a pinched off piece of a Golgi Body
'power house' of the cell, site of cellular respiration
only in plant cells, site of photosynthesis, contains chlorophyl, creates glucose
breaks down non-functioning organelles (digestive enzyme)
only in animal cells, converts H2O2 into H2O + O
part of the cytoskeleton, they connect the different sides of the cell membrane
radiate from centrioles, comprise the 'cyto-highway'
only in animal cells, aid in the process of mitosis
in animal cell, storage site for food, minerals, and waste
only in plant cells, an extra layer surrounding the cell that provides structure
in plant cell, this is huge, because the plant is not motile it is the storage site for everything
Cells that have a true nucleus (both animal and plant cells) (ex. non-bacterial cells)
Cells that lack a true nucleus (a membrane bound nucleus), these cells have nuclear material floating freely in the cytoplasm (ex. bacterial cells)