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Biology Chapter 4-4
Term | Definition |
---|---|
cell wall | a rigid structure that surrounds the cell membrane and provides support to the cell |
central vacuole | in some protists and in most plant cells, a large, fluid filled organelle that stores water, enzymes, metabolic wastes, and other materials |
plastid | an organelle of plant cells that contains specific substances and preforms specific functions for the cell: examples are chromoplasts and chloroplasts |
chloroplast | an organelle that is found in plant and algae cells where photosynthesis occurs |
thylakoid | a membrane system found within chloroplasts that contain the components for photosynthesis |
chlorophyll | a green pigment that is present in most plant cells, that gives plants their characteristic green color and that reacts with sunlight, carbon dioxide, and water to form carbohydrates |