Ensure that your hands are dry when handling the lamp. This shows that the supply of carbon dioxide reaching the Elodea is declining. To do this, place Cabomba pondweed in an upside down syringe in a water bath connected to a capillary tube you can also use Elodea, but we find Cabomba more reliable.
Using a more concentrations of sodium hydrogen carbonate would give a more accurate set of results. It shows the average distance the meniscus moved in nine minutes. Measuring the rate of photosynthesis Measuring the rate of photosynthesis Without photosynthesis life as we know it would not exist.
The effect this will have on the plants enzymes is that they will be killed because they will work more rapidly killing themselves more quickly. How do you measure the rate? Plant biomass is the food and fuel for all animals.
This therefore shows the results are inaccurate and may explain the sudden increase in movement in the meniscus in the concentrations of 0. Using a CO2 monitor - More simply, you could put a plant in a plastic bag and monitor the CO2 concentration in the bag using a CO2 monitor. I worked thoroughly and had no problem in carrying out my procedures.
This would best be done with a reference colour chart to try to make the end-point less subjective. These compounds are stable and can be stored until required for life processes. Therefore due to the inaccuracy of the airtight seal meant carbon dioxide was able to reach the Elodea.
From the results it seems that the temperature was fairly constant so would have as little effect as possible on the results obtained. However, you can probably think of several inaccuracies in this method. In cold weather, heaters might be employed in a greenhouse because the temperature may be too low for efficient photosynthesis for plant growth.
The changes in the oxygen concentration in the water could be measured using data logging equipment. The lengths of the error bars indicate that some of the readings were more accurate than others.
A lamp is positioned at suitable distances with a ruler. So 3 three factors can be manipulated to increase the rate of photosynthesis and hence increase plant growth. You do need some ventilation or the level of carbon dioxide gas will fall if the air is not replenished as the carbon dioxide is used up by the plants.
Put the weed in a solution of NaHCO3 solution. This is shown by the graph line becoming horizontal, and the maximum rate is now dependent on the temperature ie the higher the temperature the greater the maximum rate of photosynthesis possible.
The plants will release bubbles of oxygen, a product of photosynthesis, which can be counted. Measuring the speed of the horizontal movement of the gas bubbles is quite easy via the accurate linear scale and stopwatch. Aim To investigate the effect of light intensity on the rate of photosynthesis.
From the results table I can see that between the concentrations of 0. Using a more convenient apparatus than a clamp and boss to hold the capillary tube and would also make certain that the lamp was 8cm away from the Elodea.
Further thoughts on the experimental methods described in methods 1.Graph 7. Rate of photosynthesis versus CO 2 /NaHCO 3 concentrations at light intensities (2 factors) Initially the graph lines are linear as the rate of photosynthesis is proportional to the carbon dioxide (or sodium hydrogencarbonate) concentration (see also Graph 3).
Similar Documents to Practical report - Investigating the Effect of Hydrogen Carbonate Concentration on the Rate of Photosynthesis in Ivy Leaf Disks 4 Pages Photosynthesis and Respiration Practical. Concentration Of Hydrogen Carbonate On Rate Of Photosynthesis. Determination of rate of photosynthesis INTRODUCTION Photosynthesis is the major process by which light from the sun is captured by plants, algae and some bacteria to produce energy.
It is a process in which light energy is converted into chemical energy which is then stored in sugars. Effect of Sodium Hydrogen Carbonate Concentration on the Rate of Photosynthesis 0 Firstly I will attach a capillary tube to the nozzle of end of a 20cm3 syringe by means of rubber tubing.
Hypothesis Procedure The Effect of the Concentration of Sodium Bicarbonate on the Rate of Photosynthesis Materials - Sodium Bicarbonate (baking soda) solution. Aug 18, · Please explain how sodium carbonate affects the rate of photosynthesis. If possible, please help me design an experiment to test this given the the following materials: mi-centre.com leaves of plants 2.a bottle of 5mol concentration of sodium hydrogencarbonate solution 3.
stop watch mi-centre.comc straw mi-centre.com borer 6. torch light as light source 7. dark cloth 8. large syringe 9. 6 x mL measuring Status: Resolved.Download