Biology Chapter 9 Cellular Respiration

Front 1

Photosynthesis generates ........................, which are used in cellular respiration.

Back 1

02 and organic molecules

Front 2

Catabolic pathways yield energy by ...........................

Back 2

oxidizing organic fuels

Front 3

The breakdown of organic molecules is .....................

Back 3

exergonic

Front 4

............................ is a partial degradation of sugars that occurs without O2

Back 4

Fermentation

Front 5

.......................... consumes organic molecules and O2 and yields ATP.

Back 5

Aerobic respiration

Front 6

........................ is similar to aerobic respiration but consumes compounds other than O2.

Back 6

Anaerobic respiration

Front 7

............................ includes both aerobic and anaerobic respiration but the term is often used to refer to aerobic respiration.

Back 7

Cellular Respiration

Front 8

In cellular respiration "C6H12O6 + 6 O2" becomes...

Back 8

6 CO2 + 6 H2O + Energy (36-38 ATP + heat)

Front 9

The ..................... during chemical reactions releases energy stored in organic molecules.

Back 9

transfer of electrons

Front 10

Chemical reactions that transfer electrons between reactants are called ...................................

Back 10

oxidation-reduction reactions, or redox reactions

Front 11

In organic compounds,electrons are usually transferred to ............ a coenzyme

Back 11

NAD+ (oxidizing agent)

Front 12

What are the 3 stages of cellular respiration?

Back 12

Glycolysis (produces 2 pyruvate from a glucose)
Citric acid cycle (completes the breakdown of glucose)
Oxidative phosphorylation (accounts for most of the ATP)

Front 13

What goes into the investment phase of glycolysis?

Back 13

Glucose + 2H20
4 ATP
2NAD+ 4e- + 4H+

Front 14

What is contained in the payoff phase of glycolysis?

Back 14

2 pyruvate
2 ATP
2 NADH + 2H+

Front 15

After glycolysis, and in the presence of O2, ............ enters the mitochondian

Back 15

pyruvate

Front 16

Before the citric acid cycle can begin ........... must be converted to ................... which links the cycle to glycolysis

Back 16

pyruvate; acetyl CoA

Front 17

The citric acid cycle also called the ........... takes place within the .................

Back 17

Krebs cycle; mitochondrial matrix

Front 18

The citric acid cycle .............. organic fuel derived from...........

Back 18

oxidizes; pyruvate

Front 19

The citric acid cycle generates

Back 19

1ATP, 3NADH, and 1 FADH2

Front 20

The .......... of acetyl CoA joins the cycle by combining with ............, forming ............

Back 20

acetyl group
oxaloacetate
citrate

Front 21

The citric acid cycle has ............. steps

Back 21

8

Front 22

The last seven steps of the citric acid cycle decompose the citrate back to ................, making the process a .............

Back 22

oxaloacetate; cycle

Front 23

The NADH and FADH2 produced by the cycle relay .............. extracted from food to the ....................

Back 23

electrons; electron transport chain

Front 24

Glycolysis and the citric acid have converted most of the energy from food into

Back 24

NADH and FADH2

Front 25

NADH and FADH2 donate electrons to the ................, which powers ATP synthesis via .....................

Back 25

electron transport chain; oxidative phosphorylation