General
Which organelle performs cellular respiration
mitochondria
in the cytosol
Matrix
Where do the reactions of oxidative phosphorylation take place?
cristae
What is the goal of fermentation?
What can a facultative anaerobe do?
switch between aerobic and anaerobic pathways
What are the inputs of Glycolysis
1 Glucose, 2 ATP molecules, 2 NAD+
two turns
4
Out of the all the pathways mentioned in this chapter, which is the only pathway found in all organisms
glycolysis
What is the ultimate source of energy
The Sun
2 pyruvate, 4 ATP molecules, 2 NADH
What is produced in two turns of the citric acid cycle?
6 NADH, 2 FADH2, 2 ATP, 4 CO2
Where does most of the NADH that delivers electrons to the electron transport chain come from?
After completion of the citric acid cycle, most of the useable energy from the original glucose is found in what form?
NADH
Name four structural components of the Mitochondria
Cristae, Inner Membrane, Outer Membrane, Matrix
alcohol + lactic acid fermentation
In preparing pyruvate to enter the citric acid cycle, which molecule is oxidized and which one is reduced?
pyruvate oxidized, NAD+ reduced to NADH
What molecule acts as the final electron acceptor?
oxygen
In an experiment, mice where fed glucose containing radioactive oxygen. The mice where closely monitored, and after a few minutes, where will the radioactive oxygen atoms show up?
carbon dioxide
sugars, amino acids, fats
In glycolysis, there is no production of CO2. How can you explain this. (Hint: Consider the fate of the carbon molecules)
products of glycolysis contain the same total number of carbon atoms as in the starting material
Why is the citric acid cycle called a cycle?
The four carbon acid (oxaloacetate) that accepts the acetyl CoA in the first step of of the cycle is regenerated by the last step of the cycle
What kind of energy is used to phosphorylate ADP to make ATP?
Kinetic energy from chemiosmosis
Lactate