EVERYDAY SCIENCE - PLANT SYSTEMS
Question 1
The graph shows how the rate of photosynthesis changes with the wavelength of light absorbed. The unit for wavelength of light is nanometers (nm).
Fill in the blanks with the keywords provided below.
a) Describe how the photosynthetic rate changes with the wavelength of light from 450 nm to 680 nm.
Answer:
As wavelength of
b) Ace is growing some plants in an indoor garden, which is lined with light bulbs. He wants to use bulbs that give out green light to improve the growth rate of her plants. After a few days, he found that her plants died.
Explain why the plants died with references to how the plant will interact with green light.
Most of the green light will be
“A pigment is a molecule that has a particular color and can absorb light at different wavelengths, depending on the color. There are many different types of pigments in nature, but chlorophyll is unique in its ability to enable plants to absorb the energy they need to build tissues.”
Read more about chlorophyll and the functions they have in the leaf.