1. In an experiment on avocado seeds some biologists measure the rate of release of carbon
dioxide from the seeds at the beginning of their storage.
The graph on the right shows the results for two different seeds over the first sixteen days.
Which of the following statements is a correct interpretation of the data shown in the graph?
A. The overall trend shows that both seeds have the same rates of respiration over the
16 days.
B. The results seem unreliable because the release of carbon dioxide goes up and
down.
C. Both seeds show an increase in respiration after four days and an overall decrease
in respiration during the experiment.
D. Both seeds show the same increases in the rate of respiration at 4 days and 11 days.
2. In humans what is produced by muscle cells carrying out anaerobic respiration?
A. Lactate
B. Lipids
C. Lysosomes
D. Lactose
