| A | B |
|---|
| nucleus | control center for cell activities (metabolism, reprodubction) |
| endoplasmic reticulum | pathways that allow for transport of materials through cell |
| ribosomes | sites of protein synthesis |
| golgi bodies (golgi apparatus) | stacks of flattened membrane involved in packaging and storing cell products |
| lysomes | small sacs filled with digestive enzymes |
| mitochondria | double-membraned organelles that produce energy through cell respiration |
| centrioles | pair of cylindrical rings of tubules involved in cell division |
| cilia | hairlike projections that move material past the cell |
| flagella | long, hair-like projection that moves like a "whip" and makes the cell move |
| vacuoles | fluid-filled spaces (contain sap in plant cells) |
| chloroplast | organelle found only in plants (contains chlorophyll) |
| cell wall | a rigid wall outside the cell membrane, found in plant and bacteria cells |
| cell membrane | separates cell from surroundings and is selectively permeable |
| cytoplasm | watery or gel-like material between cell membrane and nucleus |
| nucleolus | very dense portion of the nucleus, which produces ribosomes |
