why do mitochondria and chloroplasts have double membranes?
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Part of this is because they both rely on Electron Transport Chains (ETC) to perform their tasks. In the case of the mitochondria, the ETC is found in the inner membrane. It essentially functions to synthesize ATP. ... The double membrane structure is necessary in both cases to inform the function of the organelle.
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Both mitochondria and chloroplasts are sites of production of ATP, the energy currency of the cell.
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Mitochondria are surrounded by a double-membrane system, consisting of inner and outer mitochondrial membranes separated by an intermembrane space (Figure 10.1). The inner membrane forms numerous folds (cristae), which extend into the interior (or matrix) of the organelle.
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Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. ... This process (photosynthesis) takes place in the chloroplast. Once the sugar is made, it is then broken down by the mitochondria to make energy for the cell.
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Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. ... Eukaryotic cells containing mitochondria then engulfed photosynthetic prokaryotes, which evolved to become specialized chloroplast organelles.
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Both cristae and mesosomes function in aerobic cellular respiration. Cellular respiration generates energy for the cell or organism. ... Chloroplasts, like mitochondria, produce energy for plant cells. Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell.
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Key points: Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis.
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The structure is called a "lipid bilayer" because it is composed of two layers of fat cells organized in two sheets. ... So the difference between a lipid bilayer and a double membrane lies in the number of lipid bilayers present.
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Like mitochondria, chloroplasts produce food for their cells. Chloroplasts help turn sunlight into food that can be used by the cell, a process known as photosynthesis. Like the mitochondria, the chloroplast has an inner and outer membrane.
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1 Answer. (i) (a) Both are double membrane structures. (b) Both of them have their own genetic material. (ii) Mitochondria is the site of production of energy whereas plastid is the site of production of food.
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Mitochondria and chloroplasts are similar in size and features to prokaryotes. The deep folds of the inner mitochondrial membrane, called cristae, resemble the folds in the prokaryotic cell, called mesosomes. Both cristae and mesosomes function in aerobic cellular respiration.
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Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. Plants don't get their sugar from eating food, so they need to make sugar from sunlight. This process (photosynthesis) takes place in the chloroplast.
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Mitochondria, like chloroplasts, tend to be inherited from just one parent or the other (or at least, to be unequally inherited from the two parents) 4start superscript, 4, end superscript. Both the sperm cell and the egg cell contain mitochondria and nuclear DNA. ...
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If mitochondria and chloroplasts are removed from a cell, the cell cannot make any more of these organelles to replace the ones that were removed. ... Like bacteria, mitochondria and chloroplasts grow in size, duplicate their DNA and other structures, and then divide into two identical organelles.
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Besides the nucleus, two other organelles — the mitochondrion and the chloroplast — play an especially important role in eukaryotic cells. These specialized structures are enclosed by double membranes, and they are believed to have originated back when all living things on Earth were single-celled organisms.
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Mitochondria and Plastids are very important cell organelles that perform different functions. The main difference between Mitochondria and Plastids are that plastids are present only in plants, mitochondria, on the other hand, are present in all eukaryotic cells.
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How did mitochondria and chloroplasts most likely arise? They arose from bacteria that were engulfed and not digested. Mitochondria are thought to have arisen from aerobic bacteria, and chloroplasts from photosynthetic bacteria. This explains their double membrane and own chromosomes.