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23 Cards in this Set

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Where does cellular respiration take place?
The mitochondrian
What is the function of the mitochondrian?
IT is the power house... IT makes energy (ATP)
What is the formula for cellular respiration?
Oxygen+glucose = Carbon dioxide and water+ atp
What are NAD and FAD
Hydrogen carrying molecules
There are four steps in cellular respiration.. What are they?
1> Glycolosis
2> Intermediate
3> Kreb's cycle.. AKA Citric Acid Cylcle
4> Electron Transport Chain
Where does everything occur?
Cytoplasm= glycolysis
Matrix= Kreb's cycle
Inner membrane (Cristae) = electron transport chain
What does glycolysis do?
Glycolysis is the proccess in which the glucose is broken down and converted into two 3 carbon molecules known as pyruvate or pyruvic acid
What are the reactants and products in glycolysis?
Reactant- Glucose
Product- Pyruvate
What does the glycolysis process look like?
c-c-c-c-c-c
2atp - 2adp



nad- nadh
c-c-c c-c-c
What is phosphorylation?
It is the phosaphate from the atp that are added to the molecules
How many atp are made when glucose is broken?
4
How many NADH is in glycolysis?
2
What are the products of glycolysis?
4 atp
2 pyruvate
2 NADH
WHat does the intermediate step do?
Well it can only occur in the prescencse of oxygen
From the pyruvate stage what happens ?
Pyruvate loses one carbon becoming acetyl, NAD picks up one hydrogen carbon dioxide is released, Coenzyme A is added to the acetyl forming acetyl coA
What does the intermediate step look like?
Pyruvate
c-c-c
Loses carbon- Co2
nad- nadh
c-c
acetyl
coenzyme a comes along
becomes acetyl coA
What is step three called and what does it do?
Step three is called the Kreb's cycle and the acetyl coA enters teh cycle and joins the other molecules...
What else happens in the third step?
Carbon is removed in steps and released as co2

Also NAD and FAD pick up hydrogen
What does the third step look like?
c-c Then four c-c-c-c are added and then you have six c-c-c-c-c-c one carbon is released as co2 and nad becomes nadh the we have five c-c-c-c-c and nad becomes nadh again and we lose another carbon as co2 the we have four c-c-c-c and then adp becomes atp and fad becomes fadh and then the four c-c-c-c move over to the new carbon ( 2) coming in and the cycle goes again. THe third step cycles three times.
What is the fourth step and what does it do?
THe fourth step is the Electron transport chain

Nadh and FADH drop of hydrogen and oygen is used, water is made, and atp is made
What does step four look like?
Well there are circles and the circles represent special protein on the membrane
image of step four
Membrane Nadh drops of hydrogen...... ~0 ~ 0 ~ 0 ~ 0 ~ 0 ~ Hydrogen passes along the other four circles and fadh comes in at the third cirlce and drops off hydrogen which is passed along the other two circles.THere are atp channels. Oxygen waits for the hydrogen at the bottom of the process and once the hydrogen meets the oxygen it becomes 2h20
What else happens in step four?
For each nadh we make 3 atp and for each fadh we make 2 atp