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What were thought to be free living bacteria and are the site of photosynthesis?
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What is a characteristic of chloroplasts that suggests that they might have evolved from free-living bacteria?
Photosynethic bacteria are likely involved.
Is Bacteria are the only free-living single celled organisms?
Not at all. Bacteria may be the smallest free-living organisms, but there are lots of protozoans like amoeba, parameciums and so forth, that are far larger.
What is smallest free living cell with cell wall?
PPLO is the smallest living cell . Its example is MYCOPLASMA .
What is germinating bacteria?
germinating bacteria is when a free endospore forms a completely new vegetative cell upon return to good living conditions
What is the free living bacteria?
[The term that Came-to-Mind-eventually was] Euglenia. I'll post this 4 know.
Why is your mitochondria has its own DNA?
It is thought that mitochondria became part of eukaryotic cells by a process known as endosymbiosis. This means that, at one time, mitochondria were free living organisms and, as such, had to be able to live on their own. This is why they have DNA, ribosomes, and enzymes. The free living cells needed DNA and ribosomes to make proteins, such as enzymes. When they were endocytosed (engulfed) by other cells, they kept these things and became organelles in charge of making energy in the new cells.
What is Mitochondria are descendants of?
Mitochondria are thought to be descendants of ancient free-living bacteria that were engulfed by a host cell through endosymbiosis. Over time, the host and the endosymbiont developed a symbiotic relationship, with the host providing protection and nutrients while the endosymbiont provided energy in the form of ATP through aerobic respiration. This symbiosis eventually led to the evolution of eukaryotic cells, including our own.
Are all organisms living things?
Yes **G1N4** I thought some living things are not organisms, because they are not free living.
Why does photosynthesis not occur in Archaea?
at the time of evolution of archea free oxygen was not present thats why photosynthesis was not possible.But they use H2S gas for photosynthesis;as a result free sulphur is formed which is use by them in respiration
How did free oxygen come about in the atmosphere?
2.2 Billion years ago Photosynthetic bacteria in the ocean began churning out oxygen as a result of photosynthesis. Then, oxygen gas started accumulating in the atmosphere.
What are mitochondria the descendants of?
She suggested that michondria and chloroplasts are descendents of prokaryotic endosymbionts.
What do nitogen-fixing bacteria do?
Nitrogen fixing bacteria change nitrogen from the air into nitrogen compounds such as ammonia, nitrate, and nitrogen dioxide. They do so, through two living arrangements. One's as free living bacteria in the soil. The other's in association with plants of the Fabaceae and Leguminosae families, such as beans and peas. In this arrangement, the plant gives the bacteria sugars in the form of exudates [waste products]. In return, the bacteria provides the plant with nitrogen in forms that the plant can take in.
