The most abundant protein in chloroplasts is the protein Rubisco. Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis . The word chloroplast is derived from the Greek words chloros, which means green, and plastes, which means “the one who forms”. This makes them the most important cell organelles as plants are the primary producers and the base of … Inside chloroplasts are special stacks of pancake-shaped structures called thylakoids (Greek thylakos = sack or pouch). Chloroplasts absorb sunlight and use it together with carbon dioxide and water to form sugars which the plant or algae uses as food. Essentially, chloroplasts are plastids found in cells of higher plants and algae as sites of photosynthesis. Chloroplasts have evolved into their function of absorbing sunlight and carrying out photosynthesis reactions. Chloroplasts Up Close. Chloroplasts are usually disk-shaped in plants and have the ability to reorient their position within a cell to change their exposure to sunlight. Sunlight. It is the primary pigment in photosynthetic plants. In plants choloroplasts occur in all green tissues. Chloroplasts absorb sunlight and use it in conjunction with … Chloroplasts: Theaters for Photosynthesis. Chloroplasts. Thylakoids have an outer membrane that surrounds an inner area called the lumen. A form of energy used in photosynthesis. The "chloro" in chloroplast comes from the Greek word chloros (meaning green). Chloroplasts will sometimes move around within the cell in order to position themselves to where they can best absorb sunlight. Other plastid types do not carry out photosynthesis and hence do not produce molecular oxygen. Chloroplasts are green plastids with internal thylakoid membranes that carry out photosynthesis, in addition to synthesis of many metabolites. A chloroplast is a basic organelle that in a sense is one of the most important organelles to us, and we don't even have them! Chloroplasts are a type of plastid distinguished by their green color the result of specialized chlorophyll pigments. Chloroplasts are cell organelles found only within the cells of plants and algae. Rubisco is likely the most abundant protein in the world. The function of chloroplasts is to produce energy for the cell through the process of photosynthesis.The chloroplasts of a cell are filled with a pigment called chlorophyll which captures the energy in certain wavelengths of light. A mixture of all the different colors of visible light. 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