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What might life on earth be like if cellular respiration had never evolved?
Wiki User
∙ 13y ago
without cellular respiration we would not be able to stay active or healthy.
Wiki User
∙ 13y ago
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What is a characteristic of mitochondria that suggests that they might have evolved from free living bacteria?
The plasma membrane of a mitochondrion, forming the surface of this organelle, is the site of many important steps of cellular respiration.
What metabolic processes might have evolved first a. Aerobic respiration b.oxygenic photosynthesis c. glycolosis?
glycolosis
What modifications of cellular respiration might you expect to find in dormant seeds?
During dormancy, seeds wait until the conditions are optimal for cellular respiration. Modifications would include things such as seeding elongation, germination and hormone regulation.
How might an organism benefit by carrying Out fermentation instead of cellular respiration?
Organisms prefer cellular respiration over fermentation.Cellular respiration gains a cell 38ATP molecules per every glucose molecule.Fermentation only gains 2ATP per glucose molecule.Obviously, you can see the difference. Cellular respiration provides much more energy for the cell, and this is why they prefer this over fermentation.There are organisms like facultative anaerobes that can preform either process, but they do cellular respiration if oxygen is available. These organisms only preform fermentation if they are in an "oxygen debt." (Like when you run, you are using a lot of energy, and you cannot get enough oxygen for cellular respiration. You are in "oxygen debt," and your muscle cells start doing fermentation. But your muscle cells prefer using aerobic reparation (cellular respiration) so you start panting. Once you get your breath back, oxygen is restored and your cells again preform cellular respiration and get more energy faster.)However, there are still obligate anaerobes that are poisoned by oxygen, and only use fermentation.Hope this helped!!
What might happen if a cell lost its ability to perform cellular respiration?
I do not think the cell would be very efficient in preforming cellular work restricted to only glycolysis, though some cells do get by on this form of ATP production.
How might earth evolved if gravity had not been present?
It could not have evolved at all. Earth formed from pieces of rock in the early solar system grouping together, attracted to one another by gravity.
How are oxygen and carbon dioxide and other waste gases exchanged in the lungs and body tissues?
Not sure but I think it might be cellular respiration! Hope this helped! :)
How oxygen carbon dioxide and other waste gases are exchanged in the lungs and body tissues.?
Not sure but I think it might be cellular respiration! Hope this helped! :)
How is C6H12O6 important to photosynthesis and cellular respiration?
C6H12O6 (glucose) is relevant to both of these processes, because... Glucose is the end product of photosynthesis. After generating ATP and NADPH from the "light reactions" in the electron transport chain, both these molecules (ATP and NADPH) go on to power the Calvin Cycle, or "dark reaction". The end product of the Calvin Cycle is a molecule of G3P, which is made into glucose. Cellular respiration is essentially the "inverse" of photosynthesis- where photosynthesis makes glucose, cellular respiration breaks it down into ATP, so that it might be used by the cell. There is aerobic and anaerobic cellular respiration, which occur differently, but the common goal of the two processes is to break down glucose. Glycolysis precedes cellular respiration itself, which is the actual process of breaking down the glucose molecules into pyruvate.
How might photosynthesis and cellular respiration be considered inverse processes?
They are inverse processes because they are the same operation just a different outcome, and that outcome is considered opposites.
Explain why at certain times of a day there is no movement of oxygen or carbon dioxide through stomata even though they are open.?
It might be that at certain times there is a balance between the amount of photosynthesis and the amount of cellular respiration going on. Photosynthesis produces the oxygen that respiration needs. Respiration produces the carbon dioxide that photosynthesis needs.
Where does a plant get its energy for photosynthesis and what is the energy transformed into after photosynthesis is complete?
They produce glucose which is then used for cellular respiration. (Glucose is chemical energy, it has high energy bonds, which when broken in cellular respiration produce a net of 38 ATP (adenosine triphophate))
