Biology Lecture 1: Molecular Biology, Cellular Respiration

Front 1

Aerobic Respiration

Back 1

Combustion of Glucose:
Glucose + O2 --> CO2 + H20

Front 2

Where does glycolysis take place?

Back 2

In the cytosol, and it doesn't require oxygen (but it's not poisoned by oxygen either)

Front 3

Overall reaction for glycolysis

Back 3

Breaks down glucose to produce: net 2 ATP, 2 NADH, 2 (3-carbon pyruvates)

Front 4

Fermentation

Back 4

-If cell can't use oxygen, after glycolysis, the NADH = oxidized back to NADH+, and carbons are removed from pyruvate to make CO2 and EtOH in yeast, or lactic acid in other cells

Front 5

Where do the products of glycolysis go?

Back 5

Mitochondrian

Front 6

Respiration inside the Mitochondrian

Back 6

-Each NADH produces 3 ATP's via electron transport chain
-Each pyruvate is converted to an acetyl COA, which transfers 2 carbons to oxaloacetate to make citrate, which begins the krebs cycle

Front 7

Citric Acid Cycle

Back 7

-Makes 1 ATP, 3 NADHs, 1 FADH

Front 8

Each NADH makes ________ ATP's via electron transport chain

Back 8

3

Front 9

Each FADH makes _________ ATP's via electron transport chain

Back 9

2

Front 10

_______ pyruvate results in _______ turn(s) of the krebs cycle

Back 10

1:1

Front 11

Aerobic Respiration of a single glucose molecule results in how many net ATP's?

Back 11

36 ATP's

Front 12

The Electron Transport Chain

Back 12

-Series of proteins called cytochromes which are embedded in inner membrane of mitochondrian
-Pass down high energy electrons from one protein to next, use energy of electron to pump protons into intermembrane space, resulting in low pH
-ATP synthase allows protons to flow back into matrix, uses electrochemical gradient to produce ATP

Front 13

What is the final electron acceptor in the electron transport chain?

Back 13

oxygen