Cellular Respiration

Question 1

Chemiosmosis

Answer 1

NRG stored in a proton gradient that’s used to do work

Question 2

Chemotroph

Answer 2

Make organic compounds from simple inorganic materials

Question 3

FADH2 is made

Answer 3

Krebs Cycle

Question 4

Heterotroph

Answer 4

Rely on autotrophs

Question 5

Intermembrane Space

Answer 5

Btwn inner & outer membrane

Question 6

NADH is made

Answer 6

• 2 from glycolysis
• 2 from pyruvate
• 6 from Krebs

Question 7

NADH Dehydrogenase

Answer 7

1 st protein channel in the ETC

Question 8

Redox Reaction

Answer 8

• Oxidation = loses
• Reduction = gaining

Question 9

Oxidative Phosphorylation

Answer 9

Process of reducing O2 & series of redox rxn to make ATP

Question 10

Photoautotroph

Answer 10

Plants, photosyntehsis

Question 11

Overall Rxn of Cellular Resp

Answer 11

C6H12O6 + 6 O2 = 6 H2O + 6 CO2 + 36 ATP

Question 12

Glycolysis

Answer 12

• Cytosol
• Anaerobic

Question 13

Process of Glcolysis

Answer 13

1. Add 2 ATPs to glucose
2. Glucose splits into G3P & DHAP
3. Pi + & 2 NADH made
4. Remove all the PO4 (4)

Question 14

Glycolysis Products

Answer 14

• 2 Pyruvate
• 2 ATP
• 2 NADH

Question 15

Pyruvate Oxidation

Answer 15

• Matrix
• Aerobic

Question 16

Process of Pyruvate

Answer 16

1. C is removed to make CO2 & NADH
2. CoA added

Question 17

Pyruvate Oxidation Products

Answer 17

• 2 Acetyle CoA
• 2 NADH
• 2 CO2

Question 18

Krebs Cycle

Answer 18

• Matrix
• Aerobic

Question 19

Process of Krebs Cycle

Answer 19

1. Acetyl CoA combines w/oxaloacetate = citric acid
2. 2 CO2 & 2 NADH forms
3. Enzyme add Pi to GTP which makes ATP
4. 1 NADH & 1 FADH formed

Question 20

Krebs Cycle Products

Answer 20

• 2 ATP
• 6 NADH
• 2 FADH2
• 4 CO2

Question 21

ETC & Oxidative Phosphorylation

Answer 21

• Btwn matrix & intermembrane space
• Aerobic

Question 22

Process of ETC

Answer 22

1. NADH drops 2 e & 2 H at NADH hydrogenase
2. E are passed through channels & cytochrome complex which pulls H across
3. H gradient is created in intermembrane space
4. As H moves down gradient, it powers ATP synthase

Question 23

Exception for FADH2 in Krebs Cycle

Answer 23

• FADH is dropped off at ubiquinone
• Only makes 2 ATPs

Question 24

Total ATP Calculations

Answer 24

• 2 ATP G
• 2 ATP K
• 4 ATP from NADH G
• 6 ATP from NADH P
• 18 NADH from K
• 4 ATP from FADH2 K
  = 36 ATP

Question 25

Types of Fermentation

Answer 25

• Lactate fermentation (muscle cells)
• Ethanol fermentation (yeast/bacteria)

Question 26

Lipids are broken down by

Answer 26

• Converted into glycerol + fatty acids
• Glycerol turns into G3P (glycolysis)
• Fatty acids turn into acetyl CoA (krebs cycle)

Question 27

Proteins are broken down by

Answer 27

• Amino acids
• Goes through deamination, where it enters wherever

Question 28

Fermentation in humans happens to

Answer 28

Regenerate NAD+

Question 28

Lactate fermentation process

Answer 28

1. Pyruvate is reduced to turn into lactate
2. NADH is oxidized (NAD is regen)

Question 29

Ethanol Fermentation

Answer 29

1. Pyruvate is reduced, NADH oxidized
2. CO2 released & NADH regen