Maximum Credit. As of 2012, the maximum credit for dependent care expenses was $2,100 a year. However, the maximum was available only to taxpayers who had paid for care for more than one dependent, had at least $6,000 in dependent care expenses during the year, and had an adjusted gross income of $15,000 or less.A look at how the credit is calculated explains where this $2,100 figure comes from.owever, the maximum was available only to taxpayers who had paid for care for more than one dependent, had at least $6,000 in dependent care expenses during the year, and had an adjusted gross income of $15,000 or less. A look at how the credit is calculated explains where this $2,100 figure comes from.
We breathe in oxygen and some of this carbon dioxide. When we exhale, we breathe out less oxygen but more carbon dioxide than we inhale. Paul Roberts, Lake Cathie. The carbon we breathe out as carbon dioxide comes from the carbon in the food we eat. The carbohydrates, fat and proteins we consume and digest are eventually converted by a number of different biochemical pathways in the body to glucose (C6H12O6).
Once in the lungs, oxygen is moved into the bloodstream and carried through your body. At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide. Your bloodstream then carries this waste gas back to the lungs where it is removed from the blood stream and then exhaled. Your lungs and respiratory system automatically perform this vital process, called gas exchange.