Keeping the light intensity the same means it will have no additional effect on the rate of photosynthesis a change of light intensity would result in a change of photosynthesis rate control. Photosynthesis is most efficient at light wavelengths between 400 and 500 nanometers and 600 to 700 nanometers the green pigment, chlorophyll, restricts the efficiency of photosynthesis. To illustrate light as a reactant for photosynthesis, you will use geranium leaves that have been kept in the dark for seven to ten days prior to the lab (in order to deplete carbohydrate stores. In this lab experiment, the team examines how the rate of photosynthesis is affected by different light colors in the leafs five different variables were tested green light, red light, yellow light, blue light, and regular white light at a controlled distance of approximately 10cm.
Discovering photosynthesis by experiments 6 this experiment tests the influence both of the light colour (red, blue, green, and white) and of the light intensity on the photosynthesis rate. Answer clearly how light wavelength affects the reaction, and how light intensity affects the reactions offer an explanation of the results, taking into account the principles of photosynthesis and the light. Besides the light factor i also decided to put a 100 watt lamp above each plant so i get a high light intensity to speed up the rate of photosynthesis aim: the purpose of this experiment is to find out under what wavelength (different colour of light) the elodea plants are able to grow and photosynthesise the best.
The effect of light intensity on photosynthetic rates the primary wavelengths of light used by photosynthesis lab. Light and plant growth - glencoecom. Ib biology higher level lab report title: investigate the effects of sodium bicarbonate and light intensity on the rate of photosynthesis of green spinach leaves through the observation of floating leaf discs.
Discrete biology practical preformed by emad zeidan, the international academy - amman. Photosynthesis lab report abstract photosynthesis is a food making process for algae and plants the photosynthesis process rate varies from different wavelengths and intensities of light.
Light reactions of photosynthesis laboratory 7 however, has its maximum intensity in the middle of the wavelength of the light released in fluorescence is. Light energy is the key to photosynthesis a relatively narrow portion or the visible light spectrum is most active in photosynthesis by performing experiments that selectively filter out different wavelengths of light you can learn about which wavelengths are most active in driving photosynthesis. In this experiment you will be investigating the effect of light color (wavelength) on the rate of photosynthesis by measuring gas production in elodea elodea has both chlorophyll a and chlorophyll b. 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, carbon dioxide levels, temperature, and wavelength of light can all be varied determine which conditions are ideal for photosynthesis, and understand how limiting factors affect oxygen production.
On the day of the experiment, cut 10 cm lengths of elodea, put a paper-clip on one end to weigh them down and place in a boiling tube of water in a boiling tube rack, near a high intensity lamp, such as a halogen lamp or a fluorescent striplight. The effects of light intensity and wavelength on the rate of photosynthesis in this simulation, you will be manipulating two variables: light intensity and light wavelength. Photosynthesis lab study photosynthesis in a variety of conditions oxygen production is used to measure the rate of photosynthesis light intensity, carbon dioxide levels, temperature, and wavelength of light can all be varied. Lab 2: photosynthesis (the light reactions) 123 lab 2: photosynthesis photosynthesis: the light dependent reactions (it is recommended that you read the chapter on photosynthesis before attending lab.
In fact, this is why different pigments absorb different wavelengths of light: the energy gaps between the orbitals are different in each pigment, meaning that photons of different wavelengths are needed in each case to provide an energy boost that matches the gap 4 ^4 4 start superscript, 4, end superscript. 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.
(investigating the link between wavelength of light and rate of photosynthesis ) for elodea, the main pigment is chlorophyll certain pigments are better at absorbing certain wavelengths of light, and for chlorophyll, blue and red lights are more easily absorbed while green is reflected off it. 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. Investigating the rate of photosynthesis this is an example of a common experiment used to investigate light intensity and the rate of photosynthesis.