What is action spectrum and absorption?
The absorption spectrum indicates the wavelengths of light absorbed by each pigment (e.g. chlorophyll) The action spectrum indicates the overall rate of photosynthesis at each wavelength of light. It is a graphical representation of the amount of light of different wavelengths absorbed by a pigment.
Which pigments are most effective for photosynthesis?
There are several kinds of chlorophyll, the most important being chlorophyll “a”. This is the molecule which makes photosynthesis possible, by passing its energized electrons on to molecules which will manufacture sugars. All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll “a”.
What two colors drive most photosynthesis?
The areas of the spectrum that drive photosynthesis are highest in the red end (600-700 nm), followed by the blue region (400-500 nm) and lastly, the green region (500-600 nm). These data show that between 50 and 75% of the green light is used in photosynthesis. Thus, Green light is necessary for photosynthesis.
Do different colors of light affect the rate of photosynthesis experiment?
The colour of the leaf played a part in the rate of photosynthesis. Leaves may come in different colours, because the leaves used in this experiment were green, green light is more likely to be reflected….Effect of Light Colour on the Rate of Photosynthesis.
| Light Colour | Average Bubbles per minute ± 1 |
|---|---|
| Red Light | 42 |
| Yellow Light | 46 |
| Blue Light | 22 |
| Green Light | 16 |
How do different colors affect photosynthesis?
Plants do respond differently to different colors of light being shone on them, because chlorophyll reflects green light and absorbs blue and red (therefore, blue and red are useful for photosynthesis, but green isn’t).
In which Colour of light is the rate of photosynthesis highest?
Maximum photosynthesis occurs in red light. Light is absorbed by photosystem II that is membrane-bound. It absorbs infrared and red light. On the other hand, blue light is absorbed by chlorophyll and carotenoids but some carotenoids are not found in chloroplasts.
In which Colour of light the rate of photosynthesis is minimum?
The green light is considered to be the least efficient wavelength for photosynthesis. During photosynthesis, if the plants are exposed to green wavelength, the rate at which the photosynthesis takes place will be the least. This is due to the presence of a green pigment known as chlorophyll.
Which plant is c4?
Hence, the correct answer is ‘Onion’.
Where does the light reaction occur?
thylakoid discs