CELLULAR RESPIRATION Flashcards
The process in which organisms take molecules broken down from food and release the chemical energy stored in the chemical bonds of those molecules.
cellular respiration
The energy that is released from chemical bonds during cellular respiration is stored in
molecules of ATP.
types of organism undergo cellular respiration
- heterotrophs
- autotrops
types of molecules are breakdown
- any food (organic) molecule, or nutrient
is the breakdown of those molecules made through photosynthesis and that it also uses the waste products of photosynthesis.
cellular respiration equation
uses those products made by cellular respiration.
photosynthesis
cellular respiration equation
C₆H₁₂O₆ + 6O₂ —— 6CO₂ + 6H₂O + energy (ATP)
Cellular Respiration is a ______ just like photosynthesis in which each step (chemical reaction) of the process is dependent on the products of the previous step.
biochemical pathway
cellular respiration is a process that is ____.
aerobic
Some steps within the process of cellular respiration do not require the presence of oxygen and are therefore _____.
anaerobic
Cellular respiration takes place in the
mitochondria of the eukaryotic cell.
is considered to be the “powerhouse” of the cell because it produces the majority of a cell’s ATP.
mitochondria
Cellular respiration breaks down into these major steps.
Glycolysis (anaerobic)
Krebs Cycle (aerobic)
Electron Transport Chain (aerobic)
energy carries found in cellular respiration
ATP
NADH
FADH2
is an anaerobic step in the cellular respiration pathway.
takes place in the cytoplasm of the cell and is a series of reaction using enzymes.
Glycolysis
cycle series of oxidation reactions that give off CO2 produce one atp per cycle
kreb cycle
takes place in matrix of mitochondria
krebs cycle
The ___ is a series of proteins located in the mitochondrial membrane.
It uses high energy electrons from the NADH and FADH₂ provided by the Krebs Cycle to move H+(protons) across the concentration gradient.
electron transport chain
ETC product summary
- 34 ATP ____ usable energy
- H2o __ byproduct
Breathing provides enough oxygen for your body to carry out normal activities.
permentation
If oxygen is not present, the products of glycolysis (pyruvic acid and NADH) will enter an alternative process called .
fermentation
where does fermentation occur?
Cytosol/Cytoplasm of the cell
Two Types of Fermentation
Lactic Acid
Alcoholic
Occurs in muscle cells in the body.
is a waste product of fermentation that will build up and cause your muscles to “burn” during hard exercise.
Lactic Acid Fermentation