In plant cells
On the average, the chloroplast density on the surface of a leaf is about one-half million per square millimeter. Chloroplasts are one of several different types of plastids, plant cell organelles that are involved in energy storage and the synthesis of metabolic materials. Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules. Chloroplasts contain chlorophyll chlorophyll: The green chemical inside the chloroplasts of plant cells. It enables photosynthesis to take place. , a green pigment that absorbs light energy for photosynthesis. However, chloroplasts are not found in all Chloroplasts are tiny factories inside the cells of plants. They are also found in the cells of other organisms that use photosynthesis. Chloroplasts take the energy from the sunlight and use it to make plant food. Plant chloroplasts develop mainly in cells located in plant leaves. Chloroplasts and other plastids develop from cells called proplastids. Proplastids are immature, undifferentiated cells that develop into different types of plastids. A proplastid that develops into a chloroplast, only does so in the presence of light. Plant cells are remarkable in that they have two organelles specialized for energy production: chloroplasts, which create energy via photosynthesis, and mitochondria, which generate energy through respiration, a particularly important process when light is unavailable. Chloroplasts are organelles present in plant cells and some eukaryotic organisms. Chloroplasts are the most important plastids found in plant cells. It is the structure in a green plant cell in which photosynthesis occurs. Chloroplast is one of the three types of plastids. 1 Chlorophyll: the pigment that gives plants their green color and allows them to absorb sunlight... 2  more. 3  Chloroplast: a part of a cell found in plants that converts light energy into energy plants can use (sugar). 4  Other living organisms such as algae also have cells that contain chloroplasts. 1 Chloroplast: a part of a cell found in plants that converts light energy into energy plants can use (sugar). 2  Other living organisms such as algae also have cells that contain chloroplasts. 3  Thylakoid: the disk-shaped parts of a plant cell where light-dependent reactions occur...
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in what types of cells are chloroplasts found