Show:
krebs cycle
Electron transport chain
ATP-PC System
Glycolysis
100

Where does the Krebs cycle occur?


Mitochondrial matrix

100

Where does the electron transport chain occur?


Inner Mitochondrial Membrane 

100

What is the primary fuel source for the ATP-PC system?



Phosphocreatine 

100

What is the primary substrate for Glycolysis 

Glucose 

200

200 Question:

What molecule starts the Krebs cycle by combining with oxaloacetate?

Acetyl-CoA

200

What is the final electron acceptor in the electron transport chain?



Oxygen

200
How long does the ATP-PC system primarily supply energy during exercise?




10-15 Seconds 

200
What is the net ATP gain from glycolysis per glucose molecule?




2 ATP
300

How many NADH molecules are produced per turn of the Krebs cycle?



3 NADH

300
What is produced when oxygen accepts electrons and combines with hydrogen


Water

300

What type of activity relies heavily on the ATP-PC system?



Sprinting or weight lifting 

300

Where in the cell does glycolysis occur?




Cytoplasm 

400
What molecule is regenerated at the end of the Krebs cycle to continue the process?



Oxaloacetate

400

400 Question:

What is the name of the enzyme that produces ATP in the electron transport chain?


ATP SYNTHASE

400

What enzyme is responsible for breaking down phosphocreatine?




Creatine Kinase 

400

What is the enzyme responsible for the rate-limiting step in glycolysis?


Phosphofructokinase (PFK)

500
How many ATP (or GTP) are directly produced per turn of the Krebs cycle?


1 ATP (or GTP)

500

How many ATP molecules are produced per NADH in the electron transport chain?


2.5 ATP

500

Does the ATP-PC system require oxygen to function?


No

500

What molecule is produced in glycolysis that can be used in the Krebs cycle if oxygen is available?



Pyruvate