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Bio 140 > Quiz 6 > Flashcards

Quiz 6 Flashcards

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0
Q

What function does ATP play

A

Energy currency

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1
Q

What is the major energy molecule in cells

A

Atp

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2
Q

What are enzymes made of?

A

Proteins

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3
Q

What do enzymes do?

A

They’re biological catalyst that perform chemical reactions

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4
Q

How do enzymes affect Chemical reactions

A

They lower the activation energy needed to transition. Actant into products

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5
Q

What is the overall effect of an enzyme on chemical reactions

A

It makes the chemical reaction happen faster

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6
Q

What does the activation energy represent

A

The space it takes to get to transition state

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7
Q

What does the transition state represent

A

Where the reactance change to products

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8
Q

What can be illustrated using an energy diagram

A

Extra Gonic and enderGonic reaction

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9
Q

What is a substrate?

A

The reactants

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10
Q

What is the relationship between a substrate and an enzyme

A

The substrate binds to an enzyme

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11
Q

Where does an enzyme bind the substrate

A

Enzymes active point

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12
Q

What is a substrate

A

The reactants

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13
Q

What are cofactors

A

Non-protein components

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14
Q

What is the role of a cofactor

A

To assist enzymes in performing their chemical reaction

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15
Q

What are the two types of cofactors

A

Coenzymes and metal ions

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16
Q

What are coenzymes

A

Large, complex organic cofactors

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17
Q

How are coenzymes used?

A

Not tightly bound, can be used by multiple enzymes

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18
Q

What are metal ions?

A

Small, simple inorganic cofactors

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19
Q

How are metal ions used

A

Usually tightly bound, semi-permanent component of the enzyme.

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20
Q

What are the “things” that can impact enzyme activity

A

Presence/absence of cofactors; temp.; pH; presence of inhibitiors; substrate concentration

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21
Q

What effect does desaturation have in enzyme activity?

A

Enzyme unfolds, active site loses shape, activity decreases

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22
Q

What does desaturation mean?

A

The enzyme isn’t its original state

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23
Q

What are the two types of inhibitors

A

Competitive and non competitive

24
Q

How does a competitive inhibitor work?

A

Resembles the substrate (external regulation)

25
Q

Why does a competitive inhibitor bind at the active site?

A

To block the substrate access

26
Q

How does a competitive inhibitor decrease enzyme activity?

A

It blocks it

27
Q

How does a no competitive inhibitor work?

A

Doesn’t resemble the substrate (internal regulation)

28
Q

Where does a non competitive inhibitor bind? Why does it bind here?

A

At the allocate tic site causing the active site to change shape

29
Q

What effect does inhibitor binding to the allosteric site have on the active site?

A

Changes shape so substrate can no longer bind

30
Q

In feedback inhibition what does the inhibiting?

A

The final product of a biochemical pathway

31
Q

How does the inhibitor work?

A

To prevent its own production

32
Q

What effect does saturation have on enzyme activity?

A

As you increase s.c. More products can be generated

33
Q

What does saturation mean?

A

Refers to having more substrates than available active sites

34
Q

What is the overall balanced chemical equation for aerobic respiration?

A

6⃣O2+C6H12O6-> 6⃣CO2+6⃣H2O

35
Q

What is the role of feedback inhibition inside cells?

A

To plateau

36
Q

Which organelle is needed for aerobic respiration?

A

Mitochondria

37
Q

Does aerobic respiration produce or consume energy?

A

Produce

38
Q

How much atp for AR

A

30

39
Q

What is the overall balanced chemical equation for photosynthesis

A

6⃣CO2+6⃣H2O+ energy -> C6H12O6 + 6⃣O2

40
Q

What organelle is needed for photosynthesis

A

Chloroplasts

41
Q

Does photosynthesis produce or consume energy?

A

Consume

42
Q

Home much atp for photo

A

18

43
Q

Group following terms

A 
Catabolic 
Degradative
Breaking down
Hydrolysis
Exergonic
Spontaneous
44
Q

Group

A 
Anabolic 
biosynthetic 
Building up
Dehydration 
Endergonic 
Non-spontaneous
45
Q

One thing going to many

A

Degradative

46
Q

Big to small

A

Breaking down

47
Q

Non polar to polar

A

Exergonic

48
Q

High to low

A

Catabolic

49
Q

Order to disorder

A

Spontaneous

50
Q

Oxidation

A

Loss of electrons

51
Q

Reduction

A

Gain of electrons

52
Q

How can hydrogen and O be used to determine oxidation

A

Loss of H gain of O

53
Q

How canH and O be used to determine reduction

A

Gain of H loss of O

54
Q

What does a redox couple refer to?

A

The electron do or is oxidized and the electron acceptor is reduced

55
Q

What are the 3 steps of aerobic respiration?

A
  1. Glycosis
  2. TCA cycle
  3. Electron transport chain
56
Q

What is the significance of the consumption of 2 ATP during glycosis

A

Goes towards the 30 ATP

57
Q

How many ATP are produced during glycolysis?

A

2

58
Q

What happenss to NAD+ during glycolysis?

A

They reaction it changes to NADH

Bio 140 (6 decks)

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