| A | B |
| Mitochondria | site of cellular respiration in the cell; considered the powerhouse of the cell |
| microtubules | long hollow structures found in the cytoplasm; serve as a sort of "skeleton" for the cell |
| microfilaments | long, threadlike stands found in some cells; made of protein called actin and are associated with cell movement |
| centrioles | cylindrical bodies that lie at right angles to each other; found mostly in animal cells; involved in cell reproduction |
| cilia | hair like bristles involved with movement; paramecium |
| flagella | a long hairs used for whip-like movement |
| vacuoles | temporary storage areas for food or water; smaller in animal cells and quite large in plant cells |
| Plastids | membrane-enclosed storage structures found in photosynthetic plants;2 main types-leucoplasts and chromoplasts |
| Leucoplasts | colorless plastids which store starch and other plant nutrients |
| Chromoplasts | contain the pigements that give colors to fruits, flowers and leaves; the most important type is chloroplasts |
| chloroplasts | plastid that contains the green pigment chlorophyll; site of photosynthesis |
| chlorophyll | the gren pigment used to capture sunlight used for photosynthesis |
| grana | stacks of photosynthetic membranes inside the chlorophyll |
| stroma | the protein-containing material that fills the chloroplast |