Cellular Respiration: An Overview Flashcards
Calorie
the amount of energy needed to raise the
temperature of 1 gram of water 1 degree Celsius
or
energy stored in food
Cells use different types of ___ for food such as…
molecules, fats, proteins, and carbo-
hydrates.
Why does the amount of energy in molecules differ
bc of different energy storing bonds
Cells break down food molecules and capture _____ ______ at key steps to use molecules such as ____ for cell activities
chemical energy; ATP
Cellular Respiration
process that releases energy from food in the presence of oxygen —– breakdown of glucose to produce ATP
What is the chemical formula of cellular respiration
6O2 + C6H12O6 = 6CO2 + 2H2O + energy
what form of energy does cellular respiration create
ATP
When a cells demand for energy increases need for ____ increases
oxygen
synonym of breathing
respiration
respiration
energy releasing pathways of the cell
why are respiration and breathing synonyms
bc most energy releasing pathways of the cell require oxygen
Aerobic
pathways of cellular respiration that require oxyxgen
what is an example of an aerobic system
KREBS cycle
why is the KREBS cycle considered aerobic
bc although it does not directly need oxygen it cannot run without oxygen
Anaerobic
pathways of cellular respiration that does not directly need oxygen or rely on oxygen to run
