Biology Stack Exchange
Biology Stack Exchange

Questions tagged [respiration]

The exchange of gases across organs that facilitate transport of the gases to and from the cells of the organism.

Respiration deals with the exchange of gases across organs that facilitate transport of the gases to and from the cells of the organism, especially in higher organisms. Breathing and ventilation are related terms.

For the cellular metabolic process that convert nutrients into chemical energy the tag should be used.

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Is death by cyanide the same as suffocation?

Reading this description of cyanide poisoning — http://indianapublicmedia.org/amomentofscience/how-cyanide-kills/ — makes me wonder if death by cyanide is equivalent to suffocation. Is it?
SomeUser
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Besides carbon dioxide and water vapor, what waste gases are removed through the human respiratory system?

Canadian Lung Association remove the carbon dioxide and other waste gases that your body's doesn't need. LibreTexts: water vapor, carbon dioxide, and other waste gases move from inside the body into the outside air. Cleveland Clinic: cleans…
user75044
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Are there any organisms that do not respire?

I am not talking about not needing oxygen. I understand that there are organisms that do not need oxygen. I am asking if there are any organisms that do not respire. (Eg, only ferment) I would like to ask if there are any such…
Jovin Goh
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Can all oxygen be provided cutaneous in humans?

What partial pressure of oxygen is needed on the skin to completely replace the lungs function as oxygen receivers? Respiration has other functions too. I am only asking about oxygen intake. Oxygenation through the skin could eventually be used…
David Jonsson
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Why does affinity of Hemoglobin increases for Oxygen in carbon monoxide poisoning?

I have studied this in almost every physiology book but I just can't understand how carbon monoxide can affect oxygen's affinity to Hemoglobin. I know that there is left shift in oxygen dissociation curve but why?
Aditya Singh
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What does this graph explain?

I find this graph incredibly confusing. Is it saying that when there is a decreased affinity (of hemoglobin to oxygen, I think?), the partial pressure of oxygen increases with the same percent saturation of hemoglobin? What does that even mean if…
Patrick
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Why does cutaneous respiration need moist skin?

My teacher told me the other week, that respiration through skin (cutaneous respiration) cannot happen without moist skin. That is why frogs have moist skin. My question- Why does cutaneous respiration needs moist skin? Can't it happen on dry…
MartianCactus
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How does the matter that makes up the fat of your fat cells ultimately leave your body--following weight loss?

I'd like to get some clarification on specifically how the matter from the fat reserves of the Adipocyte physically leaves the body. In other words, if you were to somehow follow every atom in the fat reserves of the cells of a dieting person, then,…
tdog2
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Aerobic respiration

I read a sentence in my biology book while i was reading respiration chapter. i wasnot able to understand it. It was in the process of oxidative phosphorylation" "as the proton pass through channel their electrical potential energy is used to…
user24087
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Relation between respiration and concentration of citric acid

A and B are 2 reactions. If there is an excess availability of citrate, then which of the above reactions will prevail? I know that citric acid is formed when oxaloacetic acid reacts with acetyl coA. But how does concentration of citric acid…
Rudstar
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Haldane effect plays more important role in promoting carbon dioxide transport than that of the Bohr's effect in promoting oxygen transport why?

This is the actual question And the correct option is "A" But I can't figure out why Haldane effect plays more important role in promoting carbon dioxide transport than that of the Bohr's effect in promoting oxygen transport because (a)…
G Subham
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What is static compliance?

If static compliance is change in volume with respect to change in transpulmonary pressure, when there is no gas flow. My question is; if there is no gas flow, how would volume Change?
Taofeek
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Anaerobic Respiration vs Aerobic Respiration during physical activity

So I was wondering about the difference between aerobic and anaerobic respiration on the context of burning calories. While swimming we can choose to keep our head up and breathe, or keep our head below water for a stretch. Which will burn more…
DuttaA
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Gas exchange in the alveolus

When our teacher was talking about the gas exchange inside the alveoli, he mentioned the flow of air and the flow of blood was going in opposite directions so that there always would be a concentration difference. Because of this the gas exchange…
Quasoir
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Why does fresh zinc oxide cause chills but "old oxide" does not?

Inhalation of fresh zinc oxide causes chills; aka- zinc chills, brass founders ague, oxide shakes, etc. But if the oxide is a few hours old it will not cause chills. I had them once long ago, an old experience person explained the situation which I…
blacksmith37
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