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Plant Cells & Animal Cells:
Dianne Valentinon 20 September 2013
Transcript of Plant Cells & Animal Cells:
Similar But Slightly Different
Differences / Similarities
Structurally plant and animal cells are very similar. However, the few differences that exist between them are very significant and reflect a difference in the function of each cell.
Because plants convert sunlight into energy rather than getting energy by eating food the way humans do, plant cells require additional structures that can perform that function.
In Conclusion, we find that plant, (having a few more parts), and animal cells are similar in structure with slight variations in how each part functions or carries out its responsibilities
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A cell that is a structural and functional unit of a plant. Plant cells are eukaryotic cells.
An Eukaryote cell that contains membrane-bound organelles.
Plant cell on the left
Animal cell on the right
A cell wall is like extra protection. Like the Great Wall of China.
Cell walls protect the cell membrane. Animal cells do not have cell walls. Cell walls can not move around because they are stiff and tall. The wall is made of a woody substance called cellulose.
chloroplasts are the structures that perform the function of converting sunlight into energy. chloroplasts contain chlorophyll which absorbs sunlight and makes the plant green. once the sunlight hits the lumen the plant makes its own food.
the center of the cell. the nucleus is the '"brains" of the cell. it holds structure called chromosomes which contain the cells genes. the genes decide the characteristics of the cell. when the cell duplicates itself the genes pass on the cells traits to the new ones. the nucleus is sort of like blue prints to a building.
cytoplasm is made of water and some solids. most of the cells work of keeping alive is done by the cytoplasm.
special organs called organelles (little organs) in the cytoplasm make important substances called proteins. cells use proteins in many of their chemical processes. other organelles change food molecules into material needed for energy and growth. a network of tubes sends material inside the cell.
in animal cells, the mitochondria produces the majority of the cells energy from food. it does not have the same function in plant cells. plant cells use sunlight as their energy source; the sunlight must be converted into energy inside the cell in a process called photosynthesis.
the thick and rigid layer that covers the plasma membrane in plant cells. another structural difference between plant cells and animal cells is the cell wall surrounding the cell membrane. the tough wall gives added stability and protection to the plant cell.
large, liquid filled organelles found only in plant cells. their main function is as a space filler in the cell, but they can also fill digestive functions similar to lysosomes (also present in plant cells).
vacuoles are like warehouses or storage closets. they are storage organelles. plants have one large vacuole. animal cells have more than one. vacuoles contain waste, food, and water.
a vacole without water causes a plant to wilt.
golgi apparatus is in both plant and animal cells. it can receive food from outside the cell, it may export things from inside the cell.
the cell membrane is like a thin but stout wall surrounding the cell. it allows useful substances to come in, but it blocks out dangerous substances. the membrane also forces out waste products.