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Which is used as evidence for the idea that multicellular organisms evolved from prokaryotes?
Mitochondria and chloroplasts have their own DNA
What two organelles are derived from symbiotic bacteria?
Chloroplasts and mitochondria. It is believed they were engulfed by the cells because of the dual membrane present on both. Both are believed to have originated from an endosymbiotic bacteria. Mitochondria's inner matrices contain DNA, and they have many features similar to those of bacteria. Chloroplasts are believed to have come from an endosymbiotic cyanobacteria.
What is the Capture hypothesis?
The Capture hypothesis proposes that organelles such as mitochondria and chloroplasts were derived from free-living prokaryotes that were engulfed by a host cell but not digested. Over time, these engulfed prokaryotes established a symbiotic relationship with the host cell, eventually becoming permanent residents within the cell. This theory is supported by the presence of prokaryotic-like features in mitochondria and chloroplasts, as well as their own genetic material.
Two principal organelles of eukaryotes that share features with one another and with bacteria from which they apparently were derived are the?
Two principal organelles of eukaryotes that share features with one another and with bacteria are the mitochondria and chloroplasts. Both organelles have their own DNA and ribosomes, similar to bacteria, and are thought to have originated from ancient endosymbiotic bacteria that were engulfed by early eukaryotic cells.
What process is thought to be involved in the genesis of eukaryotes from prokaryotes?
It is almost certain that DNA-bearing organelles like the mitochondria and the chloroplasts are what remains of ancient symbiotic oxygen-breathing proteobacteria and cyanobacteria, respectively, where the rest of the cell seems to be derived from an ancestral archaean prokaryote cell - a theory termed the endosymbiotic theory.
Which is used as evidence for the idea that multicellular organisms evolved from prokaryotes?
Mitochondria and chloroplasts have their own DNA
What two organelles are derived from symbiotic bacteria?
Chloroplasts and mitochondria. It is believed they were engulfed by the cells because of the dual membrane present on both. Both are believed to have originated from an endosymbiotic bacteria. Mitochondria's inner matrices contain DNA, and they have many features similar to those of bacteria. Chloroplasts are believed to have come from an endosymbiotic cyanobacteria.
What is the Capture hypothesis?
The Capture hypothesis proposes that organelles such as mitochondria and chloroplasts were derived from free-living prokaryotes that were engulfed by a host cell but not digested. Over time, these engulfed prokaryotes established a symbiotic relationship with the host cell, eventually becoming permanent residents within the cell. This theory is supported by the presence of prokaryotic-like features in mitochondria and chloroplasts, as well as their own genetic material.
Two principal organelles of eukaryotes that share features with one another and with bacteria from which they apparently were derived are the?
Two principal organelles of eukaryotes that share features with one another and with bacteria are the mitochondria and chloroplasts. Both organelles have their own DNA and ribosomes, similar to bacteria, and are thought to have originated from ancient endosymbiotic bacteria that were engulfed by early eukaryotic cells.
What organelle takes in oxygen and carries on cellular respiration?
Building up sugars from carbon dioxide and water is something almost only green plants can do. They have special cell organelles called chloroplasts for that.Other than that, cyanobacteria can also do photosynthesis, but they're procaryotic and don't really have cell organelles.chloroplasts
What process is thought to be involved in the genesis of eukaryotes from prokaryotes?
It is almost certain that DNA-bearing organelles like the mitochondria and the chloroplasts are what remains of ancient symbiotic oxygen-breathing proteobacteria and cyanobacteria, respectively, where the rest of the cell seems to be derived from an ancestral archaean prokaryote cell - a theory termed the endosymbiotic theory.
Are bactirial cells larger than plant and animal cells?
No - quite the opposite. Eukaryotic cells (which include plant and animal cells) are vastly larger than prokaryotic cells (i.e. bacteria) - several orders of magnitude larger. The precise relation in size varies, but to give you a sense of the relative scales it is thought that some Eukaryotic cell organelles (mitochondria and chloroplasts) are actually derived from ancient prokaryotes who developed such a close symbiotic relationship with ancient eukaryotic cells that they became assimilated as a component. So, when you see a picture of an animal or plant cell where mitochondria and choloroplasts are shown, that's roughly the size of a prokaryotic cell relative to a eukaryotic cell.
Is it true mitochondria and chloroplasts originated in bacteria?
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 organelle contains a smooth outer and folded inner membrane in a cell?
The chloroplast of plant cells and the mitochondrion of animal cells. Both of these are involved in the production of energy and are derived from the secondary endosymbiosis of an alga (in the case of the chloroplast) or a cyanobacteria (in the case of the mitochondrion).
What concept explains the presence of mitochondria in cell?
The concept that explains the presence of mitochondria in cells is the endosymbiotic theory. Mitochondria in cells derived from the extra embryonic membranes.
What is endosymbiosis?
Endosymbiosis is a process in which one organism lives inside another and they form a mutually beneficial relationship. This concept is often used to explain the origins of organelles such as mitochondria and chloroplasts in eukaryotic cells.
Which of these was not derived from an ancestral alpha proteobacterium?
Answer Choices: A) mitosome B) kinetoplast C) chloroplast D) hydrogenosome E) mitochondrion Answer:C) chloroplast Explanation: Chloroplasts are not related to all the other choices. Mitochondria, kinetoplasts, mitosomes, and hydrogenosomes are similar in that they both deal with cellular respiration, regardless of whether it is aerobic or anaerobic. On the other hand, chloroplasts deal with photosynthesis, a process which is the complete opposite of cellular respiration.
