Cellular respiration

November 3, 2007 at 8:05 pm #8497

Participant

I have a test over this some time next week and i was wondering if u guys could tell me stuff about cellular respiration
Q)I mean how do cells turn food into oxygen
Q)What is Mitochondria?!….. It doesn’t explain it in my book that’s why i hate school books because they don’t explain stuff thoroughly!!!! 😡

November 3, 2007 at 10:36 pm #77431

mith

Participant

1. cells don’t turn food into oxygen.

November 4, 2007 at 1:26 am #77438

locobw

Participant

quote mith:

1. cells don’t turn food into oxygen.

First of all it says in my book that the food that you eat is broken down then its turned into a form of energy your cells can use and then one way to do this is with oxygen.

November 4, 2007 at 1:27 am #77439

locobw

Participant

Hey also i’m a kid don’t think i’m stupid ….OK!

November 4, 2007 at 2:11 am #77441

mith

Participant

1.Food is combined with oxygen to release energy. Oxygen is not produced.

And here’s a glossary for mitochondria

http://www.biology-online.org/dictionary.asp

November 4, 2007 at 6:27 pm #77459

locobw

Participant

Thanks…. Also my book actually says that it says oxygen is produced 😕

November 4, 2007 at 8:52 pm #77464

victor

Participant

maybe the foods don’t turn into oxygen but they’re turned towards oxygen in aerobic cellular respiration.

November 8, 2007 at 5:57 am #77578

kareena

Participant

See, The food that you consume , gets conveted into a form of energy which is useful for and by the cells. But the cells DONOT convert into energy.
Please understand clearly.

November 8, 2007 at 4:12 pm #77584

blcr11

Participant

quote locobw:

quote mith:

1. cells don’t turn food into oxygen.

First of all it says in my book that the food that you eat is broken down then its turned into a form of energy your cells can use and then one way to do this is with oxygen.

The breakdown of carbohydrates generates electrons, usually in the form of NADH or NADPH. The final electron acceptor in oxidative respiration is molecular oxygen. Oxygen is consumed, not generated, in the mitochondria. Either the textbook mis-spoke (which wouldn’t be the first time that has ever happened), or you misunderstood the textbook. To simplify: food is converted to reducing equivalents (electrons) which is used to fix oygen into water (well, hydrogen peroxide initially, but that quickly converts to water; and "fixing" oxygen means that oxygen is consumed by the conversion process).

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