Cellular Respiration

Question 1

Cellular Respiration

Answer 1

Purpose is to break down glucose into useable chemical energy (ATP)

Question 2

Equation for Cellular Respiration

Answer 2

C6H12O6 + 6O2 = 6CO2 + 6H2O

Glucose + oxygen = carbon dioxide + water +energy

Question 3

Anaerobic Respiration

Answer 3

Occurs in the cytosol, no oxygen available. Pyruvate cannot cross membrane around mitochondria.

Pyruvate converted to lactic acid in animals, or ethanol and carbon dioxide in plants and yeast

Question 4

Mitochondria

Answer 4

Site of aerobic respiration

Question 5

Stages of aerobic cellular respiration

Answer 5

Glycolysis, Krebs Cycle, Electron Transport Chain

Question 6

Glycolysis

Answer 6

Occurs in all living cells, in the cytoplasm. Converts glucose into pyruvate.
Anaerobic

Question 7

Krebs Cycle

Answer 7

Occurs in the mitochondrial matrix. Converts pyruvate into CO2 + ATP.
Anaerobic

Question 8

Electron Transport Chain

Answer 8

Occurs in the mitochondrial cristae.
Converts O2 to ATP + H2O.
Aerobic

Question 9

Factors affecting the rate of Cellular Respiration

Answer 9

Oxygen - cellular respiration will switch from aerobic to anaerobic respiration

Glucose - no/low glucose, all cellular respiration will slow down

Temperature - lower the temp = slower the reactions