1) Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants.
Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food.
Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present. Large vacuoles help provide shape and allow the plant to store water and food for future use. The storage function plays a lesser role in animal cells, therefore the vacuoles are smaller.
2) There are a few key structural differences between plant cells and animal cells.
Below are a few of the main ones:
Plant cells are generally larger than animal cells.
Only animal cells have lysosomes (however, recent, and controversial, research suggests that some plant cells may have lysosomes), and only plant cells have chloroplasts.
While plants cells have a rigid cell wall, animal cells have a thin and flexible plasma membrane.
Plants cells have a large central vacuole and animal cells have many small vacuoles
3) Why should I study cell?
Because all life ultimately is made up of living cells! By several measures uni-cellular life is still the most successful form of life on earth! Just because microbes and cyano algae have been around for a billion years, it does not mean that todays forms are not vast improvements on their ancestors! We invent new materials….ten years later we have bacteria eating them as sole source of nutrition, noth-ing on this planet can compete with that! We find cells 3 miles deep in the earth or floating in the stratosphere, they survive on the outside of spaceships that return to earth…..and humans are nothing than a biotope for trillions of micro organisms. Before you make a number two on the toilet there is more bacterial cells in your body than human cells! Then you are more human….for a couple of hours, and the game goes on till we die, and become, well guess food for whom?
Answers & Comments
1) Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants.
Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food.
Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present. Large vacuoles help provide shape and allow the plant to store water and food for future use. The storage function plays a lesser role in animal cells, therefore the vacuoles are smaller.
2) There are a few key structural differences between plant cells and animal cells.
Below are a few of the main ones:
Plant cells are generally larger than animal cells.
Only animal cells have lysosomes (however, recent, and controversial, research suggests that some plant cells may have lysosomes), and only plant cells have chloroplasts.
While plants cells have a rigid cell wall, animal cells have a thin and flexible plasma membrane.
Plants cells have a large central vacuole and animal cells have many small vacuoles
3) Why should I study cell?
Because all life ultimately is made up of living cells! By several measures uni-cellular life is still the most successful form of life on earth! Just because microbes and cyano algae have been around for a billion years, it does not mean that todays forms are not vast improvements on their ancestors! We invent new materials….ten years later we have bacteria eating them as sole source of nutrition, noth-ing on this planet can compete with that! We find cells 3 miles deep in the earth or floating in the stratosphere, they survive on the outside of spaceships that return to earth…..and humans are nothing than a biotope for trillions of micro organisms. Before you make a number two on the toilet there is more bacterial cells in your body than human cells! Then you are more human….for a couple of hours, and the game goes on till we die, and become, well guess food for whom?
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