Catabolic Pathways Flashcards

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1
Q

What initiates polymer breakdown?

A

hydrolases (abundance of water)

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2
Q

What is the end product of glycolysis?

A

pyruvate

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3
Q

What is glycolysis?

A

process that extracts energy from glucose by splitting it into two 3 carbon pyruvate molecules and 2 ATP and NADH

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4
Q

What fermentation pathway is used by heterolactic acid bacteria?

A

phosphoketolase pathway

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5
Q

What is the key enzyme in the Etner Douderoff pathway?

A

KDPG aldoase

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6
Q

What does the Krebs (TCA) cycle produce?

A

reduced coenzymes NADH, FADH2,

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7
Q

What is fermentation?

A

the use of organic molecules as terminal electron acceptors

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8
Q

What organism produces ethanol?

A

saccharomyces

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9
Q

What organism produces acetone?

A

clostridium

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10
Q

What organism produces ethanoic acid?

A

Escherichia acetobacter

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11
Q

What organism produces lactic acid?

A

lactobaccillus streptococcus

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12
Q

What organism produces propanoic acid?

A

propionibacterium

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13
Q

What do feed enzymes do?

A

increase the digestibility of nutrients

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14
Q

What is the heterolactic pathway?

A

glycolic pathway, enzyme phosphoketolase cleaves pentose phosphate into acetyl phosphate (ethanol) and glyceraldehyde 3 phosphate (lactic acid) , produces 1 ATP

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15
Q

What is the Etner Douderoff pathway

A

yields 2 pyruvic acid from glucose, ethanol produced, 1 ATP

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16
Q

What is produced from pyruvate if oxygen is present?

A

Acetyl Co A

17
Q

What molecule enters the citric acid cycle?

A

Acetyl CoA

18
Q

Where do coenzymes go after the TCA cycle?

A

the electron transport chain