Thursday, April 8, 2010

The Plant Cells Group!- Shakti, R.Abilash, Idris, Goh Jia Sheng and Jurvis

Question 1

Firstly there are three parts in the cell that contain organelles. The nucleus, the cytoplasm and the surface. In the nucleus there are chromosomes, a nuclear membrane and a nucleolus. In the cytoplasm there are centrioles, chloroplast (plant cell), cytoskeleton, endoplasmic reticulum, golgi apparatus, lyosome, mitochondria, ribosomes and vacuoles. In the surface there are cell wall (plant cell) and cell membrane (plasma membrane).
There are other parts of organelles

amyloplast is a part where it stores starch ATP - ATP is short for adenosine triphosphate, it is produced in the cristae of mitochondria and chloroplasts centrosome - (also called the "microtubule organizing center") a small body located near the nucleus - it has a dense center and radiating tubules. centrosome divides and the two parts move to opposite sides of the dividing cell. plant cell centrosomes do not have centrioles. stroma - part of the chloroplasts in plant cells, located within the inner membrane of chloroplasts, between the grana. thylakoid disk - thylakoid disks are disk-shaped membrane structures in chloroplasts that contain chlorophyll christae - (singular crista) the multiply-folded inner membrane of a cell's mitochondrion that are finger-like projections. The walls of the cristae are the site of the cell's energy production (it is where ATP is generated).(Just for extra knowledge)
Question 2

It has a regular shape due to the cell wall and it also has a rectangular shape with many different looking and types of organelles.

Question 3

The nucleus is the control center of the cell that dictates what all of the other organelles do. The nucleus also stores the DNA.The endoplasmic reticulum (ER) is where most chemical reactions take place. The cell makes lipids and other chemicals, and it sometimes has ribosomes attached.Ribosomes are the only organelle that every cell has, including bacteria. They take information from the DNA and use it to make proteins.The golgi apparatus is essential in packaging different products from the ER and the ribosomes into their final form. If it is a product that needs to be sent to other cells, the golgi apparatus packs them and sends them out.Mitochondria are often referred to as the powerhouses of the cell. This is because they take in sugar and create ATP, the type of energy your cell needs to function.The plasma membrane, or cell membrane, is not just the covering of the cell. It also plays a vital role in getting nutrients into the cell and sending waste products out.Chromosomes are normally in the form of chromatin. It contains genetic information. It is also composed of DNA.Moreover it is thickened for cellular division.There is a set number per species (i.e. 23 pairs for human)

Question 4

They each have a specific function that helps the cell perform its function.

Credits
http://library.thinkquest.org/12413/structures.html

16 comments:

  1. I never knew that a plant cell had cytoskeleton.

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  2. I did not know the amyloplast is the part where it stores starch

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  3. I did not know The walls of the cristae are the site of the cell's energy production

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  4. I did not know that amyloplast is and that it stored the starch and I also did not know that plasma membrane and cell wall were considered organelles.

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  5. i did not know that the centrosome has a dense center and radiating tubules.

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  6. I did not know that every cell including bacteria has ribosomes.

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  7. I didn't know amyloplast is a part where it stores starch...

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  8. I did not know that the mitochondria creates ATP.

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  9. I did not know that thylakoid disks are disk-shaped membrane structures in chloroplasts that contain chlorophyll

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  10. I did not know that amyloplast is a part where it stores starch.

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  11. This comment has been removed by the author.

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  12. i did not know Ribosomes are the only organelle that every cell has, including bacteria

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  13. I did not know that amyloplast is a part where it stores starch

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  14. I didn't know they take information from the DNA and use it to make proteins.

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  15. I did not really know the function of each of the organelles in the plant cell until i read this. I did not know that ATP is short for adenosine triphosphate, which is produced in the cristae of mitochondria and chloroplasts.

    -Christopher Nah

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  16. I didn't know that the plasma membrane is not just the covering of the cell but also plays a vital role in getting nutrients into the cell and sending waste products out.

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