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Comparing a leaf palisade cell and liver cell

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Introduction

Comparing a leaf palisade cell and liver cell In this essay I will be comparing the organisation of two eukaryotic cells. The leaf palisade cell and the liver cell using details revealed by the light and electron microscope. I will be focusing on the important structures of each cell, explain what they do and why they are unique or similar to each other. A eukaryotic cell is a membrane-bounded organelle; it usually contains mitochondria and chloroplasts within the outer plasma membrane of the cell. The eukaryotic cell is used for metabolism processes, contains enzymes for a particular metabolic pathway and if any anti bodies or harmful reactants enter the cell it can be isolated in an organelle so it does not harm the entire cell. ...read more.

Middle

In this case the pigment is green. The chloroplasts contain their own DNA making the cell what it is. The chloroplasts are important in the leaf as they contain chlorophyll, which are necessary for photosynthesis. Chloroplasts are never found in animal cells, as they are not needed. In the middle of the palisade cell is the vacuole. The vacuole is a fluid filled sac bounded by a single membrane surrounded by a tonoplast. The fluid inside is called cell sap. Vacuoles play roles in digestion and in the release or cellular waste product. The vacuole helps to keep the cell clean. The tonoplast acts like a membrane and keeps the cell sap in. A nucleus is found in every eukaryotic cell. ...read more.

Conclusion

The mitochondrion has been termed the powerhouse of the cell and is banded by two membranes. All cells contain a nucleus and a nuclear envelope and the liver cell is no exception. It has exactly the same control over the cell as the palisade nucleus does. To keep it all together, it is surrounded by a cell membrane. This semi-permeable matter allows information to be spread from cell to cell. The liver cell also has a golgi apparatus, which is a network of stacked sacs found within nucleated cells that store, package and distribute the proteins and lipids made in the rough ER. Proteins that are meant to return to the ER carry a distinctive tag. The golgi apparatus recognises the tag and transports the proteins back to the ER. Lisa Thomas 12.6 ...read more.

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