How does wavelength affect rate of photosynthesis?
The wavelength of light is also important. PSI absorbs energy most efficiently at 700 nm and PSII at 680 nm. Light with a higher proportion of energy concentrated in these wavelengths will produce a higher rate of photosynthesis.
What wavelengths has the fastest rate of photosynthesis?
The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm). Therefore, the best light sources for photosynthesis should ideally emit light in the blue and red ranges.
Which graph shows the rate of photosynthesis at different wavelengths of light?
Absorption and action spectrum The action spectrum (graph B) shows how effective the different wavelengths of light are at photosynthesis.
What wavelengths has the slowest rate of photosynthesis?
Green light is considered the least efficient wavelength in the visible spectrum for photosynthesis, but it is still useful in photosynthesis and regulates plant architecture.
Which factor least influences the rate of photosynthesis?
The major limiting factors for photosynthesis are light intensity, temperature, and carbon dioxide levels.
- Light Intensity. Since photosynthesis cannot begin without light, it is the first limiting factor.
- Temperature.
- Carbon Dioxide Concentration.
Why are red and blue wavelengths best for photosynthesis?
Specific light qualities have precise effects on plants. For example, blue (B) and red (R) light are the most effectively utilized wavelengths during plant photosynthesis because the absorption spectra of the photosynthetic pigments mainly focus on the B (400–500 nm) and R (600–700 nm) light spectra.
Which of the following order is correct about the rate of photosynthesis?
maximum photosynthesis occurs in violet-blue and red parts of light. -So,order will be like this red>violet>blue>orange>green>yellow.
What was the highest rate of photosynthesis?
The maximum rate of photosynthesis occurs in the red and blue regions of the visible light as seen in the absorption spectra of chlorophyll a and b.
Do green and yellow wavelengths inhibit the absorption of red and blue wavelengths?
Green and yellow wavelengths inhibit the absorption of red and blue wavelengths. Oxygen given off during photosynthesis interferes with the absorption of light. a. Other pigments absorb light in addition to chlorophyll a.
Why does green have the lowest rate of 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. The green light is transmitted and reflected instead of absorbed by the chlorophyll.
What light intensity is best for photosynthesis?
Light Intensity. The light intensity range for most plants falls between 1,200 and 2,000 lumens (measurement of light intensity). The number of light photons hitting the chlorophyll pigments increase as the light intensity rises. This in turn increases the rate of photosynthesis.
How does the level of light affect the rate of photosynthesis?
As the light intensity increases, the rate of photosynthesis increases. However, the rate will not increase beyond a certain level of light intensity. At high light intensities the rate becomes constant, even with further increases in light intensity, there are no increases in the rate.
What are the factors affecting photosynthesis?
Many external and internal factors affect the rate of photosynthesis. The external or environmental factors at:A light intensity, carbon dioxide concentration and temperature. The internal factor influencing the photosynthesis is chlorophyll content of the leaves and protoplasmic factors.
What happens during the 2 stages of photosynthesis?
Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH . During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.