Anaerobic Respiration in Plants and Yeast

Which sequence represents the changes for anaerobic respiration in plants and yeast?

1. A glucose -> pyruvic acid -> ethanol + carbon dioxide

B glucose -> lactic acid -> carbon dioxide + water

C glucose -> pyruvic acid -> carbon dioxide + water

D glucose -> lactic acid -> ethanol + carbon dioxide

2. In anaerobic respiration in plants and yeast, how many molecules of ATP

result from the breakdown of one molecule of glucose?

A 1

B 2

C 3

D 4

3. Anaerobic respiration in plants is irreversible due to the loss of

A carbon dioxide.

B lactic acid.

C ethanol.

D pyruvic acid.

Questions 4,5 and 6 refer to the experiment below demonstrating anaerobic

respiration in yeast.

4. Which line below would describe the results of this experiment?

	Temperature	Lime water
A	drops	stays clear
B	rises	turns cloudy
C	drops	turns cloudy
D	rises	stays clear

5. The glucose solution has been boiled and cooled to ensure that

A the water is now safe to use.

B all bacteria have been killed.

C the glucose is now fully dissolved.

D all dissolved oxygen has been removed.

6. The layer of oil on the surface of the mixture is there to prevent

A yeast from floating on top.

B heat energy from escaping.

C oxygen from getting into the solution.

D carbon dioxide from escaping.

7. Which process is common to both anaerobic and aerobic

respiration in plants?

A Formation of lactic acid.

B Breakdown of carbon dioxide.

C Formation of pyruvic acid.

D Breakdown of lactic acid.

8. An end product which is common to both anaerobic and aerobic

respiration in plants is

A oxygen.

B ethanol.

C lactic acid.

D carbon dioxide.