Endoplasmic Reticulum2 types: smooth ER (no ribosomes) rough ER (with ribosomes)Snuggles up to the nucleusHelps with movement of substances within the cell, Smooth ER also helps make steroids & break down toxins.
Cytoplasm/CytoskeletonCytoplasm = jelly like substance in the cellCytoskeleton = made up of microtubules & microfilimentsBoth are important for providing structural support in intracellular movement.
Some other cell parts to be aware of…1) Cilia – hair-like structures usually help cells move2) Pili – hair-like structures that help bacteria stick to surfaces and share DNA with other bacteria.3) Flagella (flagellum) – whip-like tail, helps cell move
3) Vacuoles – hold or store wastes, water, food. Plants usually have 1 large vacuole and many smaller ones, animal cells have small ones.4) Centrioles – only in animal cells, help with cell division
Cells – general informationCell size is limited by the ratio of surface area to volume.Cell with particular functions will have more of some organelles & less of some organelles.