Due to certain chemical properties of carbon dioxide, it is much more soluble in human blood than oxygen. This tendency of carbon dioxide molecules to dissolve readily in the blood comes in pretty handy while removing them from within the cells in which they’re produced. Alveoli are the sites...
The team came up with a reversible process consisting of membrane-free electrochemical cells. Reactive electrodes are used to release protons to the seawater fed to the cells, driving the release of the dissolved carbon dioxide from the water. The process is cyclic: It first acidifies the water...
The body actually produces formaldehyde naturally, but enzymes in the body break it down — first into formate (formic acid) and then into carbon dioxide. Since most of the formaldehyde that we all inhale is broken down by cells in the mouth, nose, throat and airways, less than a third ...
Their influence, however, can be overridden by chemical factors (oxygen, carbon dioxide, pH). Chemical irritants: Nerve cells in the airways sense the presence of unwanted substances in the airways such as pollen, dust, noxious fumes, water, or cigarette smoke. These cells then signal the ...
What is the main mechanism by which gases move from the alveoli into the blood and cells and back? Do white blood cells transport carbon dioxide? How is the energy produced by respiration stored? How is cholesterol transported into human cells?
Explain the Conversion of Carbon Dioxide into Oxygen. What would happen to the carbon dioxide and oxygen levels if we had too many animals or too many plants? Our lungs breathe in O2, but release CO2 and H2O. What's the function of O2 in cellular respiration? Where do CO2 and O2 come...
Learn more about how hydrogen fuel cells are revolutionizing the energy industry. How Do Hydrogen Fuel Cells Work? Hydrogen fuel cells are just one of many alternative energy sources that offer a comprehensive list of benefits. A hydrogen fuel cell is comparable to a battery in that it can ...
Gigantic single cells like that depicted in the Star Trek's "The Immunity Syndrome" could not survive. Large organisms, including humans, are made of many small cells and use circulatory systems to deliver oxygen and nutrients to cells and to remove carbon dioxide and wastes from them. On a...
Fuel cells should do both tasks more efficiently. A fuel cell provides a DC (direct current) voltage that can be used to power motors, lights or any number of electrical appliances. There are several different types of fuel cells, each using a different chemistry. Fuel cells are usually ...
The ocean is also home to tiny marine algae – known as phytoplankton. Like plants on land, phytoplankton use atmospheric carbon dioxide (CO2) to build their cells. Not only does this process release oxygen, it draws CO2 down from the atmosphere and helps reduce climate warming. ...