Plant Cells
| Main Menu | Not only human and animals have cells. Plants do too. Plant cells are inside plants and they are quite different from animal and human cells. But plants still look like normal human cells. The cells still have all the parts like a thin layer membrane, a nucleus and all of the other cell parts too. But it has a cell wall and chloroplasts. Chloroplasts are in the plant cells that make the process called “photosynthesis”. Photo means light, and synthesis means putting things together. The green plants make their own food, and they a re responsible for what we eat. Since a lot of animals eat plants, we eat those animals that eat the plants. So we are still eating plants unknown. Photosynthesis is a process. The chlorophyll take energy from the sun, and that energy forms tiny bundle known as photon. Photon hits a molecule of water that’s inside the chlorophyll. The photons energy splits the molecule into hydrogen and oxygen. The oxygen combined with carbon dioxide (that the plant gathers) to make sugars or glucose. Then the oxygen is released back into the air to make more oxygen for us humans, to breath.We need plants to survive on this earth. Plants make the supply of our air to breath. The best oxygen plant is the photo plankton that lives in the ocean. We need the plant cells so the can make the phase “photosynthesis”. | |
Another thing about cells in plants are the collenchymas cells. They have support functions in mostly young plants, like some functions help support they plant while not to restrain growth to their lack of secondary walls and absence of a hardening agent in the plant cell primary walls.
Another cell is the parenchyma cell, these cells aren’t very special. They synthesize and store organic products in the plant; most of the plants metabolism takes place in these cells.
The young plants often contain tiny vacuoles, many small ones. As the cells grows those tiny vacuoles form one large vacuole the vacuoles serve the functions as storing food, storing waste, and stores many vitamins from our food. Vacuoles also help keep turgor in the cell. If turgor is lost from the cells, the plant will start to wilt. If you put a fresh water plant in saltwater the plant cells quickly lose their turgor so the plant wilts and slowly dies. The reason of this process is because sea water is hypertonic to the cytoplasm. The cell will shrink, drawing their plasma membrane away from the cell wall.
Citations:
http://en.wikipedia.org/wiki/plant-cell