The first prokaryotes likely obtained their food through chemosynthesis, using inorganic compounds such as hydrogen sulfide or methane as an energy source. They did not rely on sunlight for photosynthesis, as they lacked chlorophyll and other necessary cellular components for this process.
Prokaryotes use only glycolysis to generate energy because they lack membrane-bound organelles, such as mitochondria, where aerobic respiration takes place. Glycolysis is a simple metabolic pathway that occurs in the cytoplasm and provides prokaryotes with the necessary energy in the form of ATP to survive and carry out their functions.
Prokaryotes vary in their oxygen requirements, with some being strict aerobes requiring oxygen, some being anaerobes that cannot survive in the presence of oxygen, and some being facultative anaerobes that can switch between aerobic and anaerobic metabolism. This affects the types of environments they can live in, such as aerobic prokaryotes thriving in oxygen-rich environments like open air or ocean surfaces, while anaerobic prokaryotes can be found in environments like deep soils, deep-sea vents, or the human gut, where oxygen levels are low or absent.
Yes, mitochondria are believed to have evolved from engulfed aerobic bacteria that formed a symbiotic relationship with early eukaryotic cells. This theory is known as the endosymbiotic theory and is supported by similarities between mitochondria and modern-day bacteria, such as their own DNA and ability to replicate independently.
No, the vast majority of prokaryotes are not harmful.
The origin of photosynthetic prokaryotes caused an aerobic atmosphere during the history of the earth.
Aerobic respiration in measosomes.Anerobic respiration in cytoplasm.
aerobic bacteria
This phenomenon is known as endosymbiosis, specifically referring to the theory that mitochondria and chloroplasts originated from free-living aerobic prokaryotes that were engulfed by ancestral eukaryotic cells and established a symbiotic relationship.
The first prokaryotes likely obtained their food through chemosynthesis, using inorganic compounds such as hydrogen sulfide or methane as an energy source. They did not rely on sunlight for photosynthesis, as they lacked chlorophyll and other necessary cellular components for this process.
Prokaryotes use only glycolysis to generate energy because they lack membrane-bound organelles, such as mitochondria, where aerobic respiration takes place. Glycolysis is a simple metabolic pathway that occurs in the cytoplasm and provides prokaryotes with the necessary energy in the form of ATP to survive and carry out their functions.
yes prokaryotes have prokaryotes
It is thought that mitochondria were engulfed by prokaryotes, which eventually developed into animal cells. This event led to the creation of a symbiotic relationship between the host cell and the engulfed mitochondria, giving rise to complex eukaryotic cells.
No, Pseudomonas is a genus of bacteria, specifically a group of Gram-negative, aerobic, rod-shaped bacteria. Bacteria are prokaryotes, not eukaryotes.
The evolution of photosynthetic organisms, such as cyanobacteria, led to the buildup of oxygen in Earth's atmosphere through a process called the Great Oxidation Event. This occurred around 2.4 billion years ago, gradually transforming the atmosphere from anaerobic to aerobic.
Yes, aerobic cellular respiration can occur in prokaryotic organisms. In prokaryotes, such as bacteria, aerobic respiration takes place in the cytoplasm and cell membrane. The process involves the citric acid cycle and electron transport chain to produce ATP.
The theoretical ATP yield of aerobic respiration is 36-38 ATP molecules per glucose molecule. This occurs through a series of metabolic pathways such as glycolysis, the citric acid cycle, and oxidative phosphorylation in the mitochondria.