Explanation: The citric acid cycle, also known as the Kreb’s cycle, occurs within the mitochondria of eukaryotic cells. In prokaryotic cells, it occurs in the cytosol.
Do prokaryotes do Krebs?
Kreb’s Cycle occurs in mitochondria in eukaryotic cell and in cytoplasm of prokaryotic cell .
Where is the Kreb cycle in prokaryotes?
In eukaryotic cells, the Krebs cycle occurs in the intracellular matrix of the mitochondria. In prokaryotes like bacteria or archaea that do not have mitochondria, the Krebs cycle occurs in the cytosol .
Why can’t prokaryotes perform cellular respiration?
In your cells, cellular respiration happens in a special organelle called the mitochondrion. But as mentioned, prokaryotic organisms don’t have organelles . Rather than taking place in the mitochondrion, cellular respiration happens either in the cytoplasm or across the plasma membrane of the cell.
Can prokaryotes participate in aerobic respiration?
Prokaryotes may perform aerobic (oxygen-requiring) or anaerobic (non-oxygen-based) metabolism , and some can switch between these modes. Some prokaryotes have special enzymes and pathways that let them metabolize nitrogen- or sulfur-containing compounds.
How do prokaryotes respire without mitochondria?
But as mentioned, prokaryotic organisms don’t have organelles. Rather than taking place in the mitochondrion, cellular respiration happens either in the cytoplasm or across the plasma membrane of the cell .
Does this mean that prokaryotes Cannot carry out the entire process of cellular respiration?
All living cells must carry out cellular respiration. It can be aerobic respiration in the presence of oxygen or anaerobic respiration. Prokaryotic cells carry out cellular respiration within the cytoplasm or on the inner surfaces of the cells .
Can prokaryotic cells perform cellular respiration?
Cellular respiration occurs in both eukaryotic and prokaryotic cells , with most reactions taking place in the cytoplasm of prokaryotes and in the mitochondria of eukaryotes. There are three main stages of cellular respiration: glycolysis, the citric acid cycle, and electron transport/oxidative phosphorylation.
Do prokaryotes carry out cellular respiration?
In Prokaryotes, cellular respiration mainly occurs within the cytoplasm of the cell . Similar to eukaryotes, cellular respiration in prokaryotes is carried out in three different stages: Glycolysis. Krebs cycle.
Why do prokaryotes use anaerobic respiration?
Some prokaryotes and eukaryotes use anaerobic respiration in which they can create energy for use in the absence of oxygen .
Do prokaryotes use anaerobic respiration?
Certain prokaryotes, including some species of bacteria and Archaea, use anaerobic respiration .
Are prokaryotic cells aerobic or anaerobic?
Most prokaryotes are facultatively anaerobic . This means they can make ATP if oxygen is present or switch to fermentation if oxygen is absent.
Why doesn’t a prokaryotic cell have mitochondria?
Prokaryotic cells are less structured than eukaryotic cells. They have no nucleus; instead their genetic material is free-floating within the cell. They also lack the many membrane-bound organelles found in eukaryotic cells . Thus, prokaryotes have no mitochondria.
What do prokaryotes have instead of mitochondria?
Prokaryotes lack mitochondria and instead produce their ATP on their cell surface membrane . Some researchers have suggested that mitochondria might actually be one of the reasons that eukaryotic cells are typically larger than prokaryotes and more varied in their shape and structure.
Which of the following is not found in prokaryotes and eukaryotes?
Explanation: Prokaryotic cells are simple cells that lack membrane-bound nuclei and complex organelles. Endoplasmic reticulum, microtubules, and the Golgi apparatus are unique to eukaryotic cells, and will not be found in prokaryotes.
Why do prokaryotes make more ATP?
Why do prokaryotes produce more ATP per molecule of glucose compared to the eukaryotes? Complete answer: In prokaryotes, there are no mitochondria, the whole process of respiration occurs within the cytoplasm so no ATP is consumed in transporting across the organelle .
Why can prokaryotes survive in extreme conditions?
Almost all prokaryotes have a cell wall, a protective structure that allows them to survive in both hypertonic and hypotonic aqueous conditions . Some soil bacteria are able to form endospores that resist heat and drought, thereby allowing the organism to survive until favorable conditions recur.
How is cellular respiration different in prokaryotes and eukaryotes?
In eukaryotes, most cellular respiration reactions take place within the mitochondria. In prokaryotes, they occur in the cytoplasm and/or within the cell membrane .
Do prokaryotes perform photosynthesis?
Prokaryotic photosynthetic organisms have infoldings of the plasma membrane for chlorophyll attachment and photosynthesis (Figure 1). It is here that organisms like cyanobacteria can carry out photosynthesis. Some prokaryotes can perform photosynthesis . This process occurs in the chloroplast.
How do prokaryotic cells carry out functions?
Prokaryotic cells lack these organelles which reduces the efficiency of the cells to perform certain functions. Some specialised prokaryotic cells do have networks of membranes that allow the cell to perform functions such as photosynthesis and cellular respiration.
