Chapter 7 - Cell Respiration Flashcards
Write out the balanced equation for aerobic respiration.
Glucose + Oxygen … yields … Carbon Dioxide + Water + Energy … or…
C6 H12 O6 + 6 O2 … yields .. 6 CO2 + 6 H2O + ATP
Which product would be radioactive if you began the reaction with radioactive carbon atoms in the glucose molecule?
Carbon dioxide
Does this reaction occur during the Krebs cycle or the electron trnasport chain of aerobic cellular respiration?
Krebs Cycle - carbon dioxide is released as waste when glucose is broken down.
In what part of the mitochondria does this reaction occur?
Mitochondrial matrix
Which product would be radioactive if you began the reaction with radioactive oxygen?
Water (H2)
Does this reaction occur during the Krebs cycle or the Electron Transport Chain of aerobic cellular respiration
Electron Transport Chain
In what part of the mitochondria does this reaction occur?
Inner mitochondrial membrane
All glucose breakdown starts with _________
Glycolysis
What happens in the cytosol of the cell?
Glycolysis
What it is the fluid part of the cytoplasm where the metabolic pathway of glycolysis takes place?
Cytosol
How do cells use ATP and NAD+/NADH
- They are electron carriers and bond carriers
- You need these 2 molecules to break down glucose and fun glycolysis
What are the two stages of glycolysis?
- Invest energy - USE ATP
- Harvest energy
Why is glycolysis important?
It’s how we start
We can’t just feed glucose directly into the mitochondria
It must first be broken into pyruvate
Pyruvate will be fed into the mitochondria
What are major happenings during the TRANSITION STAGE?
Attaching the coenzyme to pyruvate
(CoA - coenzyme A)
Moves into the mitochondria - cross the membrane
Run the Citric Acid Cycle (KREBS cycle)
Produce Acetyl CoA
What is another name for the Citric Acid Cycle?
KREBS cycle
What parts are needed for the KREBS cycle?
Acetyl CoA - (major part in the reaction)
Phosphate
ADP
NAD
FAD
Carbon
Oxygen
Why is oxygen needed in the KREBS cycle?
So we can attach carbon to it and get rid of the carbon?
Where in the mitochondria does the KREBS cycle occur?
The Matrix
What is the innermost part of the mitochondria where all enzymes are located?
The Matrix
What products are produced by the KREBS cycle and what is their purpose?
ATP - energy
NADH & FADH - electron carriers
Carbon dioxide - waste byproduct
What is important in Aerobic respiration?
The Electronic Transport Chain
What happens in the Electronic Transport Chain?
It’s the BIG PAYOFF!
Where we make the majority of ATP
What is the primary fuel source for ATP production obtained from food?
Glucose
