A student investigated the effect of light intensity on the photosynthesis of pondweed - Edexcel - GCSE Biology - Question 5 - 2023 - Paper 2
Question 5
A student investigated the effect of light intensity on the photosynthesis of pondweed.
A light source was placed at different distances from the pondweed.
The bubbl... show full transcript
Worked Solution & Example Answer:A student investigated the effect of light intensity on the photosynthesis of pondweed - Edexcel - GCSE Biology - Question 5 - 2023 - Paper 2
Step 1
State why the student included a water bath in the apparatus.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The student included a water bath in the apparatus to maintain a constant temperature during the experiment. This ensures that temperature variations do not affect the rate of photosynthesis observed.
Step 2
State two variables that should be controlled when completing this investigation.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
