Thermodynamics Flashcards

1
Q

Laws of thermodynamics

A
  1. Energy can no be created nor destroyed

2. The entropy (randomness of the universe increased with every chemical reaction that takes place.

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2
Q

What does the second law of thermodynamics mean?

A

All materials are breaking up into smaller pieces and scattering around.

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3
Q

How do the laws of thermodynamics present a problem for growing life?

A

Life forms are neither random nor breaking into smaller less energetic pieces.

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4
Q

How do living things produce larger macromolecules for growth yet still obey the laws of thermodynamics?

A

Achieved by concentrating matter and energy in one place and by using the energy in an effective manner to form chemical bonds between atoms.

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5
Q

How to heterotrophs gather energy?

A

By eating the plants or organisms that eat plants then use enzymes to make efficient use of the energy

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6
Q

What is done with energy?

A

Some energy is temporarily stored as atp.
Some energy is stored in macromolecules like lipids, proteins and glycogen.
And some is released as body heat.

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7
Q

What is atp

A

Adenosine triphosphate and is used to drive nearly every cellular process.

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8
Q

How do plants gather energy

A

Gather energy from sun to build larger sugar molecules from smaller carbon dioxide molecules through photosynthesis
Enzymes efficiently put energy to good use in photosynthesis

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