The molecular steps in Cellular Respiration and Photosynthesis

[Bobby Fischer]

---

Members do not see this ad.

I am having a hard time memorizing all the little details. NAD, NADH, pyruvate, succinate, etc. etc. etc.

I am getting a headache trying to keep track of all the inticate details, for example exactly how many ATPs are produced in exactly what step.

Anyone have any strategies for becomming familiar with the details of Cellular Respiration and Photosynthesis without wasting a ton of time and effort?

How much detail should I have familiarized myself with for the DAT?

 

[Adamsswag]

The general consensus I'm obtaining from past discussions is the cellular respiration and photosynthesis introduced in the DAT destroyer. Let's face it, you're not going to know EVERYTHING that there is to be tested on so you might as well know the most popular information really well in order to score a solid score like a 21.

 

[Bobby Fischer]

The general consensus I'm obtaining from past discussions is the cellular respiration and photosynthesis introduced in the DAT destroyer. Let's face it, you're not going to know EVERYTHING that there is to be tested on so you might as well know the most popular information really well in order to score a solid score like a 21.

Thank you. Your responses to my questions have been solid.

Its been a couple of months since I've visited this post. The conclusion I have come to is that there are certain detailed topics like the Citric acid cycle and photosynthesis, etc that I will dump into my short term memory bank a couple of nights before the test...knowing that this stuff is far too detailed to remember much longer than about 24-48 hours....and then forget about it as soon as my brain exits the prometric building.

I have a list I have started in each subject as I hae been going through the Kaplan review notes to remember to go back and memorize certain detailed topics just before I take it this Spring...I am sure I will keep adding to this list as I go through Cliffs AP Bio, Destroyer GC, orgo, math, Chads videos, etc.

I'll turn all of the otherwise overly detailed lists of numbers and terms into easier-to-remember acronyms. I am calling it my Acronym list because its basically going to be nothing but several pages of things like: King Phillip Comes Over For Good Spaghetti. For this particular one I like the version of Katy Perry Comes Over for Great Sex better. But what college student wouldn't?

 

[joeeeey3]

I am having a hard time memorizing all the little details. NAD, NADH, pyruvate, succinate, etc. etc. etc.

I am getting a headache trying to keep track of all the inticate details, for example exactly how many ATPs are produced in exactly what step.

Anyone have any strategies for becomming familiar with the details of Cellular Respiration and Photosynthesis without wasting a ton of time and effort?

How much detail should I have familiarized myself with for the DAT?

for cellular respiration:

glucose (which gets produced from photosynthesis) is used to make atp

4steps: glycolysis, pyruvate processing, citric acid cycle (or Krebs cycle) and, Electron transport and Chemiosmosis.

glycolysis = break down of glucose to 2 pyruvate. 2 net ATP, 2 NADH
pyruvate processing = one NADH per pyruvate
citric acid cycle = 3 NADH, 1 GTP (which can easily be converted to ATP), 1 FADH2 per pyruvate
but remember glucose breaks down to 2 pyruvate.

so far: 10 NADH + 4 ATP (2 from GTP) + 2 FADH2

Electron Transport and Chemiosmosis step produces additional 25 ATP. This step involves, Electron transport chain, proton-motive force, Chemiosmosis hypothesis, ATP synthase ....blah blah blah.

Anyways the total ATP produced from Cellular respiration would be 29.
I just had an exam about this yesterday so I can write you a wholebunch, but i would be writing till tomorrow and I don't believe you need to know all these details for DAT.

hope it helped.

 

[white fang]

for cellular respiration:

glucose (which gets produced from photosynthesis) is used to make atp

4steps: glycolysis, pyruvate processing, citric acid cycle (or Krebs cycle) and, Electron transport and Chemiosmosis.

glycolysis = break down of glucose to 2 pyruvate. 2 net ATP, 2 NADH
pyruvate processing = one NADH per pyruvate
citric acid cycle = 3 NADH, 1 GTP (which can easily be converted to ATP), 1 FADH2 per pyruvate
but remember glucose breaks down to 2 pyruvate.

so far: 10 NADH + 4 ATP (2 from GTP) + 2 FADH2

Electron Transport and Chemiosmosis step produces additional 25 ATP. This step involves, Electron transport chain, proton-motive force, Chemiosmosis hypothesis, ATP synthase ....blah blah blah.

Anyways the total ATP produced from Cellular respiration would be 29.
I just had an exam about this yesterday so I can write you a wholebunch,but i would be writing till tomorrow and I don't believe you need to know all these details for DAT.

hope it helped.

I hope you didn't need an A!

Optimal ATP production is 38 ATP per glucose.

 

[joeeeey3]

I hope you didn't need an A!

Optimal ATP production is 38 ATP per glucose.

LOL really.....? from cellular respiration alone??
it says 29 on the lecture note. so you dont hav to worry about me not getting a good grade 🙂

however, if you are absolutely certain, I suppose my prof deliberately skipped certain info.

 

[white fang]

LOL really.....? from cellular respiration alone??
it says 29 on the lecture note. so you dont hav to worry about me not getting a good grade 🙂

however, if you are absolutely certain, I suppose my prof deliberately skipped certain info.

29 could be the realistic amount of ATP generated during cellular respiration, however the theoretical amount you should know for the DAT is 38. No cell is completely efficient, or even that close, so the 29 your professor said is probably the real world amount.

 

[ttpharm]

fill this out and know it inside and out.

http://dl.dropbox.com/u/28409712/Cellular Resp Simplified.jpg

Should give you an overview of what happens to glucose and whats produced on the way.

Triglycerides -> Glycerol + Fatty Acids.

Glycerol -> Pyruvate -> acetyl coa (aerobic) or lactic acid (anaerobic)
Fatty acids -> Acetyl CoA -> aerobic