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Enzyme and ATP help

Enzyme and ATP help - Biology Forum

Enzyme and ATP help - Biology Forums. Ask questions and discuss the study of Biology. If you have Biology questions from your homework ask them here!


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Old 12-14-2008, 10:44 PM
Pipette Filler
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Default Enzyme and ATP help



Hello everyone,
I'm new to this forum. I am currently taking biology correspondence and am having troubles with a couple questions.

Lacatse hydrolyzes lactose into glucose and galactose. Galactose is then converted to another glucose by galactosidase. Outline the reaction involving these enzymes using a word equation.

I initially thought:
LactASE + H2o -> glucose and fructose

and had no clue for the second part.


Then I looked on the net and found these 2 equations:


galactosidase
Lactose + H2O ----------> galactose + glucose

Galactose oxidase
Galactose + O2 --------------> galactohexodialdose + H2O2

Are these 2 equations about something totally different?



Also, I am not sure about this question:
How does the structure of ATP make it an effective energy carrier? Where does the energy stored in the molecules come from and how is it released?

The biology course is for the last year in highschool, so please bare with me and not make explanations to complicated.

Your help is greatly appreciated.
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Old 01-03-2009, 07:16 AM
Pipette Filler
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Default Re: Enzyme and ATP help

For undertsanding ATP,u shld abt [Only registered users see links. ].

An ATP synthase (EC 3.6.3.14) is a general term for an enzyme that can synthesize adenosine triphosphate (ATP) from adenosine diphosphate (ADP) and inorganic phosphate by utilizing some form of energy.

The overall reaction sequence is:
ADP + Pi → ATP

Molecular model of ATP synthase by X-ray diffraction method

ATP synthase in E. coli

These enzymes are of crucial importance in almost all organisms, because ATP is the common "energy currency" of cells.
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