Energy Production-Aerobic Metabolism Lecture 16

Question 1

Aerobic Metabolism -what macronutrients does it use as sources of energy?

Same question for anaerobic?

Answer 1

We use carbs and fats.

Protein-We only use this when we are starving.

Anaerobic-Carbs only

Question 2

What is oxidation?

Answer 2

The loss of electrons(Hydrogens) is called oxidation.

Question 3

What is reduction?

Answer 3

If you gain electrons(Hydrogen) is called reduction

Oxidation and reduction always occur together. (redox)

Atoms gain elctrons are reduced

Atoms that lose electrons are oxidized

Question 4

How much energy does the NAD(nicotinamide adenine dinucleotide) (NAD+ ) truck put back?

Answer 4

Enough energy to put Phosphate back on 3 ATPS.

Question 5

How much energy does the FADd flavin adenine dinucleotide (FAD)truck put back?

Answer 5

Enough energy to put Phosphate back on 2 ATPS.

Question 6

Aerobic Metabolism Carbohydrates

What are the different stages

Answer 6

Stage 1- Glycolysis (Some ATP is produced here).

Stage 2-Formation of Acetyl COA(Some Co2 is produced here).

Stage 3-Krebs(TCA cycle)-We produce Co2+ATP here hence why we exhale more Co2 then we exhale. (All we are doing here is producing NAD AND FAD

Step 4-Vast majority of ATP produced in electron transport chain(mitochondria)

Question 7

What does the fate of Pyruvate depend on?

Answer 7

The fate of pyruvate depends on the availability of o2

No oxygen available-converts to lactate

O2 available-pyruvate undergoes aerobic metabolism.

Every time you start with a glucose molecule you end up with two pyruvate

Question 8

Where is the vast majority of ATP produced?

Answer 8

Majority in Mitochondriate-Oxidative Phosphorylation.

Question 9

How are atoms transported to the Electron transport chain? which is in mitochondriate?

Answer 9

By NAD and FAD