The factors that affect the rate of photosynthesis are the amount of light, the color of the light, and the amount of carbon dioxide. 6. Compare and contrast the information gained from the experiment about the factors that affect the rate of photosynthesis with the information that you learned from the class.…
Light intensity was directly proportional to electron transport. As light intensity increased so did mean change in absorbance. The highest and lowest light intensities also had the highest and lowest mean change in absorbance. The more light that is readily available is a key factor in photosynthesis and electron transport. More light means more light energy which helps split water molecules at the beginning of electron transport.…
PGA gets converted to phosphoglyceraldehyde or PGAL. Many PGAL is used to make more RuBP. This is called the Calvin Cycle. Photosynthesis is affected by many factors, like the amount of carbon dioxide in the air, the amount of water in the soil, Amount of light, intensity of light, and the…
In this study, the effects of both varying temperatures and light intensity upon the photosynthetic rate of spinach leaves were observed. Using the ‘spinach immersion’ technique, the rate of photosynthesis under various conditions was quantified by observing the amount of spinach floating on top of a sodium bicarbonate solution. The sodium bicarbonate solution simultaneously supplied the spinach with carbon dioxide for use in photosynthesis, and caused it to sink. When the leaf underwent photosynthesis and produced oxygen gas, the leaf floated to the surface. It was hypothesized that an increase of either temperature or light intensity would lead to an increased rate of photosynthesis, to a degree.…
The controls for this experiment were having the same amount of water for each temperature (50mL), the same amount of bicarbonate infused in each spinach disk, the same sized spinach disks and the same light intensity on all of the beakers. By altering the temperature of water, the rate of photosynthesis was changed. Photosynthesis is less efficient at extreme temperatures due to the enzymes not properly functioning at these extremes. In the experiment, only the beaker filled with room temperature water (22°C) had the spinach disks’ rising to the top in 17 minutes, the rising to the top is a result of photosynthesis occurring and oxygen being produced. In comparison to the other two beakers filled with water of extreme temperatures (10°C and 60°C) which had little to no movement of the spinach disks and thus it can concluded no photosynthesis.…
The question of this experiment is, what effect does the darkness have on a plant that requires a lot of light like alyssums? It is hypothesized that the plant will wilt and try to conserve energy in the dark due to its bright natural habitat. The experiment has been designed that the effect of the lighting will be tested…
The Effect of Varying Wavelengths on Photosynthesis of Spinach Introduction The rate of photosynthesis changes based on the light that the spinach is exposed to. Knowing the wavelengths of light that spinach is most likely to photosynthesize would help in knowing what light to expose spinach to, to ensure that it grows the best. When exposed to varying wavelengths, rate of photosynthesis varies as well. Wavelengths of green light, red light, blue light, and light without a filter change the rate of photosynthesis, because of the wavelengths absorbed by plants.…
Introduction: Leaf Disk float in water alone. When a solution consisting of a small amount of sodium bicarbonate is added to the water it causes the leaf disk to sink. As photosynthesis continues in the leaf disk it releases oxygen and causes the leaf disk to rise. While cellular respiration is occurring also the rate that the disk raise is an in implicit measurement of the net rate of photosynthesis. The independent variable in this lab is the solution and the light because it can be controlled.…
This photosynthetic process involves two separate stages: the light cycle in which the plant converts light energy into chemical energy and secondly, the Calvin cycle which uses that chemical energy to make sugars for food. To perform these processes, plants use organelles called chloroplasts that absorbs light to fuel the plant. These chloroplasts are consisted of different pigments that absorb specific wavelengths of light, with the two most abundant being chlorophyll a and chlorophyll b. This lab consists of two different experiments that relate to the photosynthetic processes in plants. The objective of the first experiment is to demonstrate the presence of various different pigments in a vegetable leaf using paper chromatography and identify them by using their rate of movement(Rf) and their colors.…
Available: http://www.passmyexams.co.uk/GCSE/biology/factors/factors-affecting-rate-of-photosynthesis.html. Last accessed 04/12/2015. In processes like photosynthesis all the factors that affects its rate all need to work together. The rate of the process at one point does not affect all the factors, but by the factors that have the best levels at the time.…
Yet the experiment gave out the 3 minute interval rule. Correct hypothesis: More amount of time under the light will cause the plant to give out more glucose and O2 . During the experiment, I learned the role of Sodium Bicarbonate and that photosynthesis can happen very…
Determining The Process of Photosynthesis And Cellular Respiration Using Elodea and Yeast Introduction Photosynthesis is an essential process to life on earth, in which plants and other organisms use sunlight to create food from oxygen, and carbon dioxide. Cellular respiration is when energy in food is released and converted to ATP, which is then used as chemical energy to complete tasks within a cell. This process usually requires oxygen and releases carbon dioxide. Photosynthesis and cellular respiration are similar in some areas and different in others. The purpose of both of the process is to produce energy, but they have different ways of achieving this goal.…
its color led to the formulation of this experiment. The experiment utilizes chloroplasts of spinach leaves to test the different color lights’ effects on photosynthesis. Green light is said to be the least effective at driving photosynthesis on the electromagnetic spectrum due to being mostly reflected and transmitted instead of being absorbed. Conversely, red light and white light is more effective at driving photosynthesis (Reece, 2011). Thus, a hypothesis was created stating that the rate of photosynthesis will be greater with a red light bulb compared to a green or white fluorescent light bulb.…
In this experiment, the shorter the distance between the leaf discs and the light source, the higher the light intensity, thus the higher the rate of photosynthesis in the leaf discs. The theory of Photosynthesis is that it can occur in high or low light intensity. At low light intensity, where the distance is far, there will be a shortage of the product of light independent reactions. The products which decreased are NADPH2 and ATP energy. As the distance becomes shorter, meaning the light intensity increases , more products will be produced.…
The low CO2 concentration had a higher photosynthesis rate of less than 2% difference than the higher CO2 photosynthesis rate (Figure 1), (t=.059, df=88, P=0.953). The difference in means of the rates of respiration of B. rapa plants grown in high and low CO2 concentrations was so small that it could be due to sampling error alone. The low CO2 had a lower rate of respiration of less than 13% difference (Figure 1), (t=0.458, df=88, P=0.648).…