Chapter 8 Part 1 Flashcards
1
Q
Step 1: Glycolysis (Cellular Respiration)
A
- Happens in the cytoplasm of the cell
- C6H1206 (6C) is split into 2 pyruvic acids (3C)
- Products are 2 pyruvic acid, 2 ATP, and 2 NADH
- Small amount of ATP is made
2
Q
Step 1.5 (Cellular Respiration)
A
- Happens in mitochondria of cell
- 2 pyruvic molecules(3C) (from step 1) are converted to 2 acetyl-CoA (2C)
- Products are acetyl-CoA, 2 CO2, and 2 NADH
3
Q
Step 2: Krebs or Citric Acid Cycle (Cellular Respiration)
A
- Happens in the mitochondria of cell
- Purpose: completely break down the remnants of glucose (now acetyl-CoA) into CO2 and H(hydrogen)
- Acetyl-CoA (from step 1.5) is broken down further to make carbon dioxide (CO2)
- Products are 4 CO2, 6 NADH, 2 FADH2, and 2 ATP
4
Q
Step 3: Electron Transport System (ETS) (Cellular Respiration)
A
- Happens in the mitochondria of cell
- NADH and FADH2 are electron carriers that take the hydrogen that was originally in C6H1206 and bring it to the electron transport system
- Hydrogen was split into H+ and e-
- E- is passed down a series of electron carriers and energy is produced
- This energy is used to actively transport H+ across the membrane and form a proton gradient
- ATP is formed when H+ moves through (passive transport) an enzyme called ATP synthetase by diffusion
- H2O is formed when H+ and the e- combine with O2, which is the final e- acceptor
- Most ATP is made here
- Electrons combine with oxygen and hydrogen ions to make water
5
Q
Glycolysis Inputs & Outputs
A
Inputs:
Glucose
NAD+
ATP
Outputs:
Pyruvic acids
ATP
NADH
6
Q
1.5 Inputs & Outputs
A
Inputs
Pyruvic acids
NAD+
Outputs:
Acetyl-CoA
CO2
NADH
7
Q
Krebs cycle Inputs & Outputs
A
Inputs: FAD NAD+ ADP Acetyl-CoA
Outputs: FADH2 NADH2 CO2 ATP
8
Q
Electron Transport System Inputs & Outputs
A
Inputs:
NADH
FADH
H+
Outputs:
NAD+
FAD
H2O
9
Q
Alcoholic fermentation Inputs & Outputs
A
Inputs:
Glycolysis
ADP
Outputs:
Alcohol
CO2
H2O
10
Q
Lactic Acid Fermentation Inputs & Outputs
A
Inputs:
Glucose
ADP
Outputs:
Lactic acid
ATP
