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Plant Cells, Parts & Functions. In order for cells to perform their functions, they must have energy. Plant cells are able to photosynthesize which is the ability to convert radiant energy into chemical energy.
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In order for cells to perform their functions, they must have energy.
Plant cells are able to photosynthesize which is the ability to convert radiant energy into chemical energy.
Plant cells contain structures called chloroplasts that contain the green pigment chlorophyll which traps the energy from the sun & uses it to transform carbon dioxide gas & water into glucose.
Chloro- means green and plast - means small body. A Chloroplast is a small green body in a plant cell.
Glucose is a sugar that is then used as a food source for the plant as well as otherorganisms.
Water Glucose Oxygen Carbon Dioxide 6CO2 + 12H2O -> C6H12O6 + 6H2O + 6O2
Animal cells on the other hand must convert glucose & oxygen into the energy they need.
They are able to do this through a process called cellular respiration.
Chemical reactions take place within structures in the cells called mitochondria which allow the chemical energy stored in the bonds of glucose to be released when it reacts with oxygen.
Water & carbon dioxide are waste products for this reaction.
A cell is made up of small organ-like structures called organelles that make or break down different substances.
Plant & animal cells are similar, but have different structures specific to their needs & functions.
Cell Membrane - outer layer that controls what moves in & out of the cell
Cell Wall (*Plant cells only!) - outer layer of the plant cell that shapes, protects & supports the cell
Chloroplasts (*Plant cells only!) - contains a green pigment, chlorophyll, that traps sunlight for photosynthesis
Mitochondria - site of cellular respiration that releases energy… “power house” of the cell