7: Cell Respiration

Question 1

Cell Respiaration

Answer 1

Reactions where cells transform glucose into ATP. This allows the cell to function.

Question 2

ATP

Answer 2

Adenosine Triphosphate - Molecule that stores energy for immediate cell use.

Question 3

ADP

Answer 3

When ATP loses energy, it becomes ADP. Energy is absorbed to turn ADP into ATP.

Question 4

Cristae

Answer 4

Divides Outer Compartment and Matrix in a Mitochondrion.

Question 5

Anaerobic Respiration

Answer 5

Respiration where oxygen is not present. Glycolysis followed by alcohol or lactic acid fermentation.

Question 6

Aerobic Respiration

Answer 6

Oxygen is present, glycolysis followed by Krebs cycle

Question 7

Glycolysis

Answer 7

Anaerobic phase of aerobic respiration. One molecule of glucose breaks apart into two molecules of pyruvate. Pyruvate is raw material used in Krebs cycle.

Question 8

Alchohol Fermentation

Answer 8

Conversion of pyruvate into ethyl alcohol and CO2. Think beer, wine, and bread.

Question 9

Lactic Acid Fermentation

Answer 9

In exercise, pyruvate is converted into lactic acid that goes to the muscles. Causes fatigue from lactic acid buildup in muscles. Goes to liver and converts back to pyruvate.

Question 10

Krebs Cycle

Answer 10

First stage of aerobic cellular respiration. Produces small amounts of ATP, CO2, NADH and FADH2.

Question 11

NADH and FADH2

Answer 11

Shuttle protons and electrons from glycolysis and Krebs cycle, to the Electron Transport Chain.

Question 12

Electron Transport Chain

Answer 12

Each ETC contains high energy electrons from Krebs cycle, creates proton gradient with protons from cristae membrane. Potential energy from proton gradient produces ATP through chemiosmosis and oxidative phosphorylation.