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It is thought that chloroplasts and mitochondria were prokaryotic organisms and they were engulfed by a eukaryotic organism and instead of being digested by the cell a symbiotic relationship was formed. this is called endosymbiosis. the first scientist to pioneer this kind of thinking was Mereschkowsky back in 1905.
Taking chloroplast as the example, most of the genes from the chloroplast genome have been intergrated into the nulcear genome. Those that are left are conserved in both the chloroplast genome and the cyanobacteria genome. (the cyanobacteria is the prokaryotic organisms that is thought to have been engulfed, thus creating the ancestor to the modern chloroplast). For example, the gene for bacterial cell division is also found in the chloroplast genome. Comparing both the modern chloroplast genome and the modern cyanobacteria genome it is possilbe to see just how many genes that where originally chloroplast based have jumped ship and gone to the nuclear genome.
Both animals and plants contain mitochondria but only plants contain chloroplasts. This suggests that the endosymbiotic relationship between the eukaryotic cell and the mitcohondria happen before the animal and plant lines diverged.
What else can I help you with?
Is mitochondria and chloroplasts endosymbiotic?
Yes, both mitochondria and chloroplasts are considered to be endosymbiotic organelles because they are believed to have evolved from free-living bacteria that were engulfed by ancestral eukaryotic cells. This symbiotic relationship enabled the host cell to obtain energy more efficiently through aerobic respiration (mitochondria) and photosynthesis (chloroplasts).
What Bacteria do not have?
Bacteria do not have a nucleus or membrane-bound organelles such as mitochondria or chloroplasts. They also do not have a true cell wall made of cellulose like plant cells.
Do both chloroplasts and mitochondria lack genetic information in the form of DNA?
No, mitochondria have their own DNA separate from the nuclear DNA found in the cell. This DNA encodes for some of the proteins needed for mitochondrial function. Chloroplasts also have their own DNA, containing genes that code for some chloroplast-specific proteins.
Some members of the Domain Bacteria have a a nucleus b membrane- bound organelles c chloroplasts d photosynthetic ability?
photosynthetic ability
Is this true or false The pyruvic acid produced in electrolysis enters the chloroplasts if the oxygen is present in a cell?
It is false that if oxygen is present in a cell, pyruvic acid in glycolysis enters the chloroplasts. The pyruvic acid enters the mitochondria if oxygen is present in a cell.
Is mitochondria and chloroplasts endosymbiotic?
Yes, both mitochondria and chloroplasts are considered to be endosymbiotic organelles because they are believed to have evolved from free-living bacteria that were engulfed by ancestral eukaryotic cells. This symbiotic relationship enabled the host cell to obtain energy more efficiently through aerobic respiration (mitochondria) and photosynthesis (chloroplasts).
What Bacteria do not have?
Bacteria do not have a nucleus or membrane-bound organelles such as mitochondria or chloroplasts. They also do not have a true cell wall made of cellulose like plant cells.
What don't bacteria have?
Nucleus
What oranelle does photosythesise occur?
Photosynthesis occurs in the chloroplasts in plant cells. Only plants do photosynthesis so other organisms don't have chloroplasts as sources of energy, they have mitochondria to get their energy. <not true. some bacteria also have chloroplasts and are able to go through photosynthesis. mleh. :P
Is the following sentence true or false Both chloroplasts and mitochondria are enclosed by two envelope membranes?
True. Both chloroplasts and mitochondria have a double-membrane envelope that surrounds their organelle structures.
Do mitochondria and chloroplasts lack genetic information?
That is not true. They contain their own DNA
What enabled the formation of true living cells?
Endosymbiosis enabled the formation of true living cells. This concept explains the origin of two biological structures, the mitochondria and the chloroplasts.
Do both chloroplasts and mitochondria lack genetic information in the form of DNA?
No, mitochondria have their own DNA separate from the nuclear DNA found in the cell. This DNA encodes for some of the proteins needed for mitochondrial function. Chloroplasts also have their own DNA, containing genes that code for some chloroplast-specific proteins.
Some members of the Domain Bacteria have a a nucleus b membrane- bound organelles c chloroplasts d photosynthetic ability?
photosynthetic ability
Is this true or false The pyruvic acid produced in electrolysis enters the chloroplasts if the oxygen is present in a cell?
It is false that if oxygen is present in a cell, pyruvic acid in glycolysis enters the chloroplasts. The pyruvic acid enters the mitochondria if oxygen is present in a cell.
Which do chloroplasts and mitochondria have that other organelles lack?
There is a theory that chloroplast and mitochondria were independent organisms. Since they were, they would have their own DNA. And it is true that they do. It is interesting that you get your mitochondria from only your mother. There are many studies have used mtDNA to trace the evolution and migration of human species, including when the common ancestor to modern humans and Neanderthals lived.
Where are genomes found?
Genomes are found in the nucleus of eukaryotic cells, which contain the DNA responsible for encoding all the genetic information of an organism. In prokaryotes, such as bacteria, genomes are found in the nucleoid region, which is not a true nucleus but contains the DNA. However, some organisms also have genomes in other cellular compartments, such as mitochondria or chloroplasts.
