Cellular Respiration Flashcards
What is needed for cellular respiration to occur?
Oxygen + energy source (glucose)
What are waste products in cellular respiration?
Carbon dioxide, water, and ethanol
What is fermentation?
Making ATP w/out oxygen.
What is an accurate word equation to describe the process of cellular respiration?
C6 H12 O6 + 6 O2 –> 6 CO2 + 6 H2O + energy
the products of cellular respiration (3)
CO2, water, and ATP
step one glycolysis
two phosphate groups are attached to one molecule of glucose, ATP converted to ADP.
step two glycolysis
6-carbon molecule split into two 3-carbon molecules of G3P
step three glycolysis
G3P molecules lose electrons and receive another phosphate group, two molecules of NAD+ converted into NADH.
step four glycolysis
all phosphate groups are removed from the molecule to make two molecules of pyruvic acid, the four released phosphates convert four ADP to four ATP.
how NAD+ becomes NADH?
electrons released through glycolysis attach to NAD+.
where pyruvic acid goes if there’s no oxygen?
fermentation
what fermentation regenerates
NAD+
what fermentation does not produce
ATP
efficiency of glycolysis=
energy required to make ATP/energy released by oxidation of glucose
where pyruvic acid goes when oxygen is available
aerobic respiration
