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 ...
The cells of your body release CO_2 into the blood as a normal byproduct of metabolism. You eventually exhale at the lungs. How does the CO_2 travel to the lungs? As the blood concentration of carbon dioxide increases, the breathing rate ___. Do...
How do cells perform Pinocytosis and drink blood from capillaries? How do plants get oxygen for cellular respiration? How do mammalian red blood cells generate ATP? How do red blood cells metabolize pyruvate? How does the carbon cycle deliver energy to organisms? How does plant anatomy aid in ...
Every one of the activities of life is bound up with this fundamental process, through which the oxygen vital to our body cells enters the blood, and carbon dioxide waste is eliminated. It will be worth your while to take a little time to explore your breathing. Familiarize yourself with th...
These substances are all mined;we have to dig 'em up, or drill a well to release them.And this is carbon that was in the atmosphere millions of years ago. So what happens is, when we burn this carbon—OK, it doesn't really release a whole lot, compared to the amount that’s alr...
A close-up of blood cells Sebastian Kaulitzki/iStockphoto.com Do you ever wonder what makes up blood? Unless you need to have blood drawn, donate it or have to stop its flow after an injury, you probably don't think much about it. But blood is the most commonly tested part of the...
Regular exercise increases muscle function, requiring less oxygen and producing less carbon dioxide with every contraction. This reduces the amount of air you need to inhale and exhale to do the work. The more you exercise, the stronger your heart and lung function will be. This can be ...
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. ...
- As the guard cells swell, they bend away from each other, which causes the stomata to open. - The opening of stomata allows for the release of water vapor from the plant, a process known as transpiration. 3. Closing of Stomata: - When the guard cells lose water, they become flaccid...
How are oxygen and carbon dioxide transported in the blood? How do the circulatory and respiratory systems work together to provide body cells with oxygenated blood? What does the respiratory pump do? How do the lungs and heart transport oxygen in the cardiorespiratory system?