ODWS logoThe Open Door Web Site

How Plants Feed

Reference chapter

Question 2
HTML version
PDF version

A green pondweed growing in water produces a lot of bubbles when it is kept under a bright light. When the light is switched off the plant stops producing bubbles.



1. In the space opposite draw a diagram of the apparatus that you would use to collect the gas bubbles so that they can be tested. (If you are answering this question in a word processing programme, use a draw programme and import your file.)

2. The gas produced by the plant is, in fact, oxygen. How could you prove that it is oxygen?

3. What is the name of the process which is responsible for the production of oxygen by green plants?


IB Biology Web

Biology Homepage

Topic Chapters

Facts and Figures

Laboratory Work

Questions and Quizzes Index

> Questions and Quizzes

Listings, Recognitions and Awards

© The Open Door Team
Any questions or problems regarding this site should be addressed to the webmaster

© Paul Billiet & Shirley Burchill 2016