Bio U9: Cellular Respiration

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Cellular Respiration basics + Fermentation

26 Terms

1

What is the equation for cellular respiration?

C6H12O6 + 6O2 → 6CO2 + 6H2O

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2

What does C6H12O6 + 6O2 → 6CO2 + 6H2O translate to? (What does it represent?)

Glucose + Oxygen → Carbon Dioxide + Water + ATP

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3

What is the first step of cellular respiration?

glycolysis

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4

Where does glycolysis take place in the cell?

cytoplasm

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5

What happens in glycolysis?

hint: glucose is broken down into two _____ molecules and two _____ molecules

glucose is broken down into two molecules of pyruvic acid and two NADH molecules

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6

What is the second step of cellular respiration?

Krebs cycle

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7

Where does the Krebs cycle take place?

mitochondria

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8

In the Krebs cycle, all living things

produce energy in (aerobic/anaerobic) respiration?

aerobic

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9

The Krebs cycle uses ____ and turns it into ____ and _____.

oxygen, water, carbon dioxide

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10

How many ATP does glycolysis produce?

2

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11

How many ATP does the Krebs cycle produce?

2

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12

What is the third step of cellular respiration?

ETC (Electron Transport Chain)

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13

Where does ETC take place?

in the membrane of the mitochondria

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14

How many ATP are produced through ETC?

32

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15

In ETC, electrons travel across the _______, which allows ADP to gain a phosphorus and become ATP.

electrochemical gradient

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16

How many total ATP are produced from cellular respiration?

36

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17

What is the purpose of cellular respiration?

to make ATP

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18

What organic molecule is broken down in cellular respiration?

glucose

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19

What is making ATP without oxygen called?

fermentation

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20

which is more efficient, cellular respiration or fermentation?

cellular respiration

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21

Does fermentation use the citric acid (Krebs) cycle?

no, because the citric acid cycle needs oxygen

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22

What are the two types of fermentation?

Alcohol fermentation and Lactic Acid fermentation

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23

What is the final product of alcohol fermentation?

2 ethanol

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24

Which type of fermentation decarboxylates?

alcohol fermentation

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25

What is the final product of lactic acid fermentation?

2 lactate

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26

ToF: carbon dioxide is released in the lactic acid fermentation process.

false

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