Miyerkules, Setyembre 28, 2011

Plant Cells

What are PLANT cells?
Plant cells are cells that can obviously be found on plants. These are specialized cells that are appropriate for storing large amounts of water for food production, respiration, and other processes. These cells can also capture light from the sun to be used in making food.

Parts of a Plant cell
  1. Cell wall is the outer layer that maintains the cell's shape and protects the cell from mechanical damage; made of cellulose, other polysaccharides and protein
  2. Plasmodesmata channels through cell walls that connect the cytoplasms of adjacent cells.
  3. Chloroplast is a photosynthetic organelle. It converts energy of sunlight to chemical energy stored in sugar molecules.
  4. Central Vacuole is a prominent organelle in older plant cells. Its functions include storage, breakdown of waste products, hydrolysis of macromolecules, enlargement of vacuole is a major mechanism of plant growth
  5. Nucleus
  6. Rough Endoplasmic Reticulum
  7. Smooth Endoplasmic Reticulum
  8. Ribosome
  9. Golgi Apparatus
  10. Mitochondrion
  11. Peroxisome
  12. Plasma Membrane
  13. Cytoskeleton
Some notes:
To add some information on chloroplasts:
Chloroplasts contain cholorphyll that capture, absorb, and reflect light for food production.
Chlorophyll A is the chlorophyll which reflects the green pigment we commonly see in plants.
Chlorophyll B is the chlorophyll which reflects the yellow green pigment.
Chlorophyll C is the chlorophyll which is an accessory pigment which reflects any pigment.
Carotenoids reflect the orange color like we see on carrots.




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