1.6 Respiration Flashcards
What happens to Glucose?
When glucose is broken down, bonds are broken, and this releases energy.
During the first stage of respiration, what is glucose broken down into?
2 molecules of pyruvate
How many molecules of ATP are generated during the first stage of respiration?
2 ATP
If oxygen is present, what are the 2 molecules of pyruvate broken down into?
water, carbon dioxide, and water
How much energy is generated in the 2nd stage of aerobic respiration compared to the first stage?
Lots (36 instead)
What term is used to describe respiration without oxygen being present?
Fermentation
In animals during fermentation, what is the pyruvate broken down into?
Lactate
In plants during fermentation, what is the pyruvate broken down into?
Carbon dioxide and ethanol
How many molecules of ATP are generated by the fermentation pathway? (plants or animals)
2 ATP
Where in the cell does the first stage of respiration take place?
Cytoplasm
Where in the cell does the 2nd stage of aerobic respiration take place?
Mitochondria
Why do active cells contain more mitochondria?
\They need to process more glucose and produce more ATP
