A series of laboratory experiments are set up to investigate various aspects of the photosynthetic process in Elodea canadensis, a common species of pond weed which lives underwater.

Question

A series of laboratory experiments are set up to investigate various aspects of the photosynthetic process in Elodea canadensis, a common species of pond weed which lives underwater.
In the experiment a fixed quantity of Elodea canadensis is incubated underneath an inverted water-filled funnel at 20 °C in a beaker of pond water. A bright lamp is shone on the beaker. After a few hours a collection of gas is apparent in the test tube as the water it contained is displaced. The experiment is left to run for a specific time (6 hours) and the volume of gas is recorded. At the end of the experiment the gas in the test tube is tested and is found to be oxygen.

Select from the following list two items which are the most appropriate assumptions about the events taking place in the plant cells during this short amount of time.

-No ATP is manufactured during the chemical processes occurring in the plant cells.
-Only the light reactions of photosynthesis are taking place in the plant cells.
-Respiratory processes are taking place within the plant cells.
-Elodea canadensis is synthesising glucose.
-The rate of photosynthesis is much less than the rate of respiration.

Please help!!!!

Anonymous · Answer

- Respiratory processes are taking place within the plant cells. -Elodea canadensis is synthesising glucose.