Download file to see previous pages in this experiment, the aim is to investigate on the effects of sodium bicarbonate and the intensity of light on the photosynthesis rate in green spinach leaves through the use of floating leaf disks. The photosynthetic rate of cabomba caroliniana and spinacia oleracea effects of light intensity and light quality robin maber 6952915 (partner: bashayer s) bio2137 section a4 presented to the corrector: drsofia perin university of ottawa department of biology thursday, october 8, 2015. The increases in bubbling (gas production) as the light source is moved closer to the plants indicate that the rate of oxygen production by the photosynthesis is affected by the intensity of the light source.
1 the effect of light intensity and temperature on photosynthetic rate integrated science 3 honors name: per: background the human species is dependent on photosynthesis for virtually all of our food/energy needs. It was found that spinach photosynthetic pigment absorbed light optimally between wavelengths of 400 nm and 450 nm and also at 650 nm it was also found that this green phototroph. Photosynthesis in spinach leaves and respiration in beans abstract using spinach leaves, we modeled the rate of photosynthesis in controlled environments. The single-leaf photosynthetic rate of lettuce plants irradiated with green led light at ppf 100 was lower than that with fl, but at high light intensity, such as ppf 200 and 300, pn of plants irradiated with g510 was higher than that with fl.
How light intensity effects the rate of photo synthesis aim the aim of my experiment is to find out how light intensity affects the rate of photosynthesis. Point of light saturation was reached at 800 µmoles photons m-2 s-1, such that photosynthetic rate does not increase beyond this light intensity the curve transitions from a lineal trend at low light where light itself is a limiting factor, to a plateau at high light where light is no longer a limiting factor. Research question: how does the concentration of carbon dioxide affect the rate of photosynthesis in spinach leafs introduction: spinach is a eukaryotic photoautotroph, contains plant cells and appears to be green, this suggests that it contains chlorophyll given that chlorophyll reflects green light (mazia & tyler, 1963.
The intensity of light directly affects the rate of photosynthesis (bidwell, 1979) graphs show that the higher the intensity, the higher rate of photosynthesis the intensity in this experiment was increased by moving the tube closer to the light. Light intensity has a very large effect on the rate of photosynthesis in most cases, the more light the faster photosynthesis occurs however, at some point there's a limit that the rate of photosynthesis cannot increase above. Design a series of experiments to determine how temperature and light intensity affect the rate of photosynthesis in spinach then develop a conceptual model that explains why these environmen. Abstract the development and photosynthetic capacity of chloroplasts formed in green light in cultured spinach leaf discs has been studied at intensities of 4 to 6 mw cm −2 green light stimulates chloroplast replication to about the same extent as white, blue, and red light.
Effect of light intensity on the photosynthetic processes known to occur in the isolated chloroplast and chloroplast fragments isolated chloroplasts have the ability to assimilate co2 ('2, 3). Effect of light intensity on photosynthetic rates a fixed light source to look at light intensity effect on photosynthesis photosynthesis lab. 1) the variables of light intensity, temperature, carbon dioxide, light quality all influence the rate of photosynthesis 2) photosynthesis requires carbon dioxide to furnish the carbon required to make glucose.
The effect of light intensity and temperature on the rate of photosynthesis 2120 words | 9 pages the effect of light intensity and temperature on the rate of photosynthesis aim the aim of my experiment is to determine whether intensity of light and temperature would affect the rate of photosynthesis in a plant. Light and rate of photosynthesis at low light intensities, as light intensity increases, the rate of the light-dependent reaction, and therefore photosynthesis generally, increases proportionately (straight line relationship. Students conducted an experiment to determine the effect of light intensity on the rate of photosynthesis they punched 40 leaf disks from spinach leaves and used a syringe partially filled with water to pull the gases from the leaf disks so that all leaf disks sunk to the bottom of the syringe.