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Bio 101 > Chapter 6 Thermodynamics > Flashcards

Chapter 6 Thermodynamics Flashcards

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1
Q

What is significant about a phosphorylation intermediate?

A

Less stable than original molecule
Ready to react, but not final reaction

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2
Q

What is the result of phosphorylation?

A

A phosphorylation intermediate

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3
Q

How is ATP coupled to an end ergo if process

A

ATP transfers one of its phosphate groups to another molecule (ATP is now ADP)

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4
Q

What is the role of hydrolysis during energy transfer

A

Breaks a bond connecting the 3 phosphate groups causing one of them to break off

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5
Q

What is ATP

A

The energy currency in all cells, ribonucleotide

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6
Q

What is a non spontaneous reaction

A

Requires an input of energy, the energy inputted is absorbed

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7
Q

What does endergonic mean

A

Energy is absorbed (non spontaneous)

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8
Q

What does exergonic mean

A

Energy is released (spontaneous)

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9
Q

What are spontaneous reactions

A

Has a negative delta G
Releases energy
Doesn’t need an input of energy

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10
Q

What is the equation for delta G

A

G final - G initial
G final is the products
G initial is the reactants

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11
Q

What is Gibbs free energy

A

Helps determine if energy will be absorbed or released during chemical reactions

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12
Q

What is kinetic and potential energy

A

Kinetic: energy of motion
Potential: stored energy

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13
Q

What kinds of bonds result from redox reactions

A

Ionic bonds

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14
Q

What is OILRIG

A

Oxidation is lost, reduction is gained

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15
Q

What is an example of anabolism

A

Photosynthesis

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16
Q

What type of reactions are catabolism and anabolism classified as

A

Redox reactions

17
Q

What happens during anabolism

A

Small molecule build up to large molecules requiring an input of energy

18
Q

What happens during catabolism

A

Large molecules break down into smaller molecules causing a release of energy

19
Q

What is an example of catabolism

A

Respiration

20
Q

What is metabolism

A

A chemical process within living organisms to maintain life

21
Q

What is the second law of thermodynamics

A

Systems tend towards disorder(entropy)
Some energy is lost during entropy

22
Q

What is the first law of thermodynamics

A

Energy can’t be created or destroyed it can only be converted from one form to another

23
Q

What do catalysts do

A

They speed up chemical reactions by lower the activation energy

Bio 101 (4 decks)

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