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BIO > Metabolism Energy and Enzymes > Flashcards

Metabolism Energy and Enzymes Flashcards

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Biology 101 flashcards
1
Q

Energy

A

The ability to do work

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2
Q

Forms of energy

A

Kinetic-MOTION
Potential-STORED

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3
Q

Metabolism

A

transfer energy in the cells of living organisms through chemical reactions

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4
Q

Anabolic Reactions do what

A

Build up reactions that consume energy

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5
Q

Catabolic Reactions do what

A

Break down reactions

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6
Q

Free energy=?

A

Unusable energy which is delta G

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7
Q

Positive delta G is what type of reaction and what does it need

A

Anabolic
Energy

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8
Q

Negative delta G is what type of reaction and what is it

A

Catabolic
Spontaneous

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9
Q

Spontaneous reactions are what type of chemical reaction

A

Exergonic

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10
Q

Non-spontaneous reactions are what type of chemical reaction

A

Endergonic

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11
Q

Chemical equilibrium is what

A

Reversible

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12
Q

Negative delta G summary

A

Favors products
Exergonic
Spontaneous
Free energy is released
Catabolic reactions

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13
Q

Positive delta G summary

A

Favors reactants
Endergonic
Not spontaneous
Requires free energy
Anabolic reactions

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14
Q

What does ATP hydrolysis do

A

the breakdown of ATP

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15
Q

Enzymes do what

A

Speed up a specific reaction
Lower activation energy

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16
Q

What is a barrier to reactions

A

Activation Energy

17
Q

Substrate

A

reactants for any given enzyme

18
Q

Active site

A

Where the substrate binds in/on the protein

19
Q

Inhibition

A

Decrease activity of an enzyme

20
Q

Competitive Inhibitors do what

A

Block substrates

21
Q

Noncompetitive inhibitors do what

A

change shape of the enzyme so it cannot bind substrates

22
Q

Allosteric Regulation

A

Enzymes function at one site is affected by the binding of molecules to a separate site

23
Q

Glycolysis is the initial process in the oxidation of glucose and has two phases:

A

Energy investment - using 2 ATP to start off the process
Energy Payoff - produces 4 ATP in the payoff phase
NET ATP FROM GLYCOLYSIS = 4 ATP - 2 ATP = 2 ATP

24
Q

Glycolysis splits glucose how many pyruvates

A

2 pyruvates (a 3-carbon molecule)

25
Q

No oxygen (anaerobic) →

A

pyruvate is used in fermentation

26
Q

Oxygen present (aerobic) →

A

pyruvate gets used in pyruvate oxidation and citric acid cycle

27
Q

Fermentation is the process by which what generates

A

NAD+ from the NADH products of glycolysis so that glycolysis can keep moving forward to produce ATP.

BIO (12 decks)

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