- Gel-like aqueous substances that contains all cell components
- Cytoplasm has three main functions, energy, storage, and manufacturing
CELL (PLASMA) MEMBRANE
- allows exchange of small molecules from one side of the membrane to the other and is – SELECTIVELY PERMEABLE
- Prevents outside interference
- General: Maintaining cell shape and size. Help with movement of organelles inside cell
- Aid in cellular movement and contraction (muscle)
- Assist in cell division (centrioles)
- The nucleus stores and processes genetic information in the form of DNA and RNA.
- The nuclear envelope separates the nucleus from outside intrusions.
- Nuclear pores transport of information
- Nucleolus housed in nucleus and produces ribosomes
- Within the cytoplasm of the cell
- The cell ’s “ Power House ”
- Site for CELLULAR RESPIRATION and generates fuel for the cell's activities in the form of ATP
- They convert energy into forms that are usable by the cell.
- Pathway of membranes or tubules around the cell – TRANSPORT SYSTEM
- Rough E.R .: synthesizes or makes proteins b/c of ribosomes – will be transported to golgi apparatus
- Smooth E.R .: manufactures steroids
RIBOSOME – The Laborer
- Produces and assembles proteins by bringing RNA and amino acids together.
- - produced in nucleolus and embedded on rough E.R
- Golgi apparatus is essentially a protein “Packaging Plant”
- Manufactures, packages and transports proteins and other molecules
- Works with E.R. in altering or modifying proteins for export
Transport of Proteins
Animal Cell vs. Plant
- Located throughout cytoplasm
- “ Suicide bags” – Contains digestive enzymes that break down or digest macromolecules, old organelles, viruses and bacteria that are unwanted by the cell
- Surrounds outside of plant cells
- Composed of long strands of the polysaccharide, cellulose
- Helps keep plant cells rigid
- to protect the cell against injury and invasion from harmful materials.
- Provides cellular support
- Flattened membranous sac found in cytoplasm of plant cells
- Site for PHOTOSYNTHESIS where plants use CO 2 , water and sunlight to produce energy in the form of glucose
- Contain the light-sensitive pigments, called chlorophyll a.
- Plant: Central location of cell (most typical) 90%
- Functions in storage, digestion and releasing of waste products
- STORAGE : ions, molecules, water