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ATP-ADP Cycle. But first…. Heterotrophs. Autotrophs. Can NOT make own food… they get their energy by the foods they eat. Make their own food with light – phototrophs with chemicals -- chemotrophs. ATP. Adenosine tri phosphate. JOB--- store & release energy. +. P. P. P. ribose. -.

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But first…..

Heterotrophs

Autotrophs

Can NOT make own food… they get their energy by the foods they eat

  • Make their own food

  • with light – phototrophs

  • with chemicals -- chemotrophs


ATP

Adenosine triphosphate

JOB--- store & release energy

+

P

P

P

ribose

-

adenine


ADP

Adenosine diphosphate

JOB--- energy can be stored by adding another Phosphate.. and becoming ATP

+

P

P

ribose

-

adenine


Releasing energy

Releasing energy

Storing energy

Storing energy

ATP

ADP

+

+

P

P

P

P

P

ribose

ribose

-

-

adenine

adenine


Atp adp cycle1

phosphate removed

ATP-ADP Cycle

  • ATP – ADP Cycle


Transformation of Energy

  • Energyis the ability to do work.

  • Thermodynamicsis the study of the flow and transformation of energy in the universe.

Laws of Thermodynamics

  • First law-Energy can be converted from one form to another, but it cannot be created nor destroyed.

  • Second law-Energy cannot be converted without the loss of usable energy.

HEAT


  • Carbohydrates

    • most commonly broken down to make ATP.

    • not stored in large amounts

    • up to 36 ATP from one glucose molecule

  • Lipids

    • store the most energy.

    • 80% of energy in your body

    • About 146 ATP from a triglyceride

  • Proteins

    • least likely to be broken down to make ATP.

    • amino acids not usually needed for energy

    • about the same amount of energy as a carb.



Using Biochemical Energy

1) Movement in cell

2) Protein synthesis

3) Active Transport

(Low to high concentration across membrane)


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