UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
How should the rate of photosynthesis change if the amount of light reaching a leaf decrease?
Question Date: 2016-11-30
Answer 1:

In order to photosynthesize, plants need three things: light, carbon dioxide, and water. If the plant has plenty of carbon dioxide and plenty of water, then the rate of photosynthesis will increase with more light and decrease with less light. If, however, either water or carbon dioxide is limiting, then changing the amount of light will not matter (unless light is reduced to the point where it becomes limiting instead).

Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use