Unique Structure of Plant Cells

3. Pigment that add the blue and purple colors in flowers.
6. Plant cell organelle that is mostly responsible for photosynthesis, and contains both accessory pigments (like carotenoids) and chlorophyll a and b.
13. An aggregation of microfibrils, visible with the light microscope.
14. Plastid that stores lipids.
15. Light deprived plastid. Will become a chloroplast if exposed to light.
17. Embryonic plastid, usually found in rapidly dividing cells.
18. Secondary metabolite used in essential oils.
20. One of the most important constituents of the secondary cell wall of land plants. It waterproofs the cell.
21. Colourless plastid.

1. Pigment that reflects orange and yellow light.
2. Pigment that refrects green and absorbed red and blue light.
4. Space or cavity within cytoplasm filled with cell sap.
5. A colored plastid that lacks chlorophyll, but is rich in carotenoids. Used to color fruits and flowers.
7. Structural polysaccharide contained in the primary cell wall of land plants.
8. Living part of the cell, excluding the nucleus.
9. Matrix of the cytoplasm. Nitrogen rich.
10. Plastid that stores starch.
11. Pigment that reflects yellow light.
12. Secondary metabolite that have pronounced physiological actions on humans.
13. A threadlike component of the cell wall, composed of cellulose molecules.
16. Gaps in the secondary cell wall that extend from a plastid.
19. Collective protoplasm throughout the whole plant body.