ipl-logo

Discuss The Effects That Varying Light Intensities Have On Photosynthesis

476 Words2 Pages

This study examines the effects that varying light intensities have on photosynthesis in the aquatic plant, Elodea Densa. Photosynthesis takes place in plants, algae, and cyanobacteria that capture the light energy in sunlight which will later be used to convert CO2 and water into oxygen and glucose. The carbohydrate glucose helps build leaves, flowers, seeds, and can be converted to cellulose that is used for structural support in the cell wall of plants. Photosynthesis occurs in chloroplast when CO2 from the air diffuses to chlorophyll cells through the stomata. Pigments are capable of absorbing light energy for photosynthesis however light that scattered or reflected are not able to be collected by the pigment (Marrè et al., 1989). Photosynthesis provides all animals with the majority of oxygen needed to breathe and in return animals exhale CO2 necessary for plant survival. …show more content…

Cellular respiration refers to the process of breaking down glucose to produce CO2, water, and energy. The energy produced by cellular respiration will be used to create ATP and heat. For on molecule of glucose there are approximately 36 ATP molecules produced. Biologists consider ATP to be the universal cellular energy source since the human body converts the energy that comes from water, glucose, and air into ATP. Photosynthesis removes CO2 from the air and releases oxygen to the atmosphere. Cellular respiration turns oxygen and glucose into energy and the waste product is CO2. Photosynthesis and CO2 for a cycle and depend on one another for survival. As light intensity increases photosynthesis will also increase since there are more ATP and NADPH created therefore as light intensity decreases photosynthesis will also decrease. Photosynthesis is affected by light, water, and CO2 which so an increase in light will no increase photosynthesis if there is not enough water or CO2 (Sharkey,

Show More
Related
276 Words | 2 Pages

Transitioning between photosynthesis and respiration : CO2 cuts into carbon and oxygen, some of the oxygen is then released and the carbon mixes with H20. If it was mad and balanced, the effect of carbon and water will also affect glucose. This is called photosynthesis. Plants take the water and CO2 in order to make food (glucose) which sets the oxygen free.

Read More
449 Words | 2 Pages

In life, photosynthesis and cellular respiration are two processes that allow life to survive. It is a cycle that uses each others reactants and products to fuel each other. The release of carbon dioxide and oxygen through photosynthesis or cellular respiration help the atmosphere stay stable. All cells in plants and animals perform cellular respiration to maintain homeostasis and grow. Cellular respiration harvests energy in glucose to produce ATP, which powers the cell.

Read More
520 Words | 3 Pages

The purpose of this experiment was to see what the effects of light and dark would have on photosynthesis and cellular respiration. With the knowledge gained in class about how both the reactions took place. It was predicted that the absence of light would slow down photosynthesis causing less O2 to be released in the water. It was also predicted that the beaker with the fish in the water would yield a higher concentration of CO2 in the water. These predictions were made based on the fact that plants use the energy from light in photosynthesis to split H2O creating an oxygen by product.

Read More
1771 Words | 8 Pages

The more chloroplasts exposed to light, the more photosynthetic activity we expected to occur, and the more DCIP would be reduced- invoking color change. Cell fractions containing less chloroplasts would then show less reduction of DCIP, and thus, less color change. Cell fractions kept in the dark (D set) as a negative control were expected to exhibit no color change, like those containing no cell fraction. Results: Experimental data from testing indicated that L2 (P1 cell fraction) showed the largest decrease in absorbance 0.80 to 0.00, over the fourteen-minute interval (Fig. 1). This is equal to a 100% decrease in absolute change in absorbance (Fig. 2).

Read More
389 Words | 2 Pages

The pigments of the Elodea leaf absorbed more white light than green light when carrying out photosynthesis. According to the bar graph below, the white light caused the leaf to produce a significantly greater amount of oxygen than green light (Graph 1). The graph also illustrates how the amount of oxygen produced during the first 10 minutes affect the gross photosynthesis. Both the red portion and blue portion of each column, which represents gross photosynthesis and net photosynthesis respectively, are larger for white light than for green light (Graph 1). The graph of the data provides an illustration of what the actual data numbers are representing.

Read More
1364 Words | 6 Pages

Abstract: Photosynthesis is a metabolic process common to plants. The process utilizes inorganic CO2 to produce sugars. The waste product of this metabolic reaction is oxygen. There are several factors which can influence O2 production of photosynthesis such as increase in temperature, increase in light intensity, etc. In this experiment, the effect of varying CO2 concentrations on an aquatic plant species is examined.

Read More
483 Words | 2 Pages

The experiment on photosynthesis is conducted to measure the rate of photosynthesis of the pondweed Elodea sp. The experiment observed the effects of light intensity and water temperature on the rate of evolution of oxygen from the weed. The oxygen released is determined by the released of the bubble of the weed in a minute. Photosynthesis is a chemical reaction that crucial for every plants.

Read More
479 Words | 2 Pages

Chlorophyll a, chlorophyll b, xanthophyll, and carotenes are major photosynthetic pigments which are found in chloroplast of the plant. The amount photosynthesis affected by the color of light as the amount of light absorbed in different color. Green plants use carbon dioxide and water to make sugar and oxygen by driving energy from sun light. The objective of this experiment is to investigate the effect

Read More
1291 Words | 6 Pages

The aim of this experiment was to investigate the effect of different bicarbonate soda concentrations in water on the amount of oxygen produced by submerged leaves as a by-product of photosynthesis. It was hypothesised that the leaf which was submerged in the water sample with the highest concentration of bicarbonate soda would produce the greatest amount of oxygen, due to the higher levels of, eventually, CO2 it was exposed to. The results show that the amount of oxygen produced by the leaves increases as the bicarbonate soda concentrations increases. In the results it is evident that the leaves which were exposed to higher amounts of bicarbonate soda produced the most oxygen on average and through all trials. This adheres to the theory

Read More
472 Words | 2 Pages

Photosynthesis is Like a Teacher Photosynthesis is a process in which plants convert energy from the sun into stored energy food, that can be used by plants, animals, and humans called glucose. The equation that represents this is 6 CO2 + 6 H2O + light > C6H12O6 + 6 O2. The energy conversion that occurs in photosynthesis is the process in which plants and other organisms absorb light energy from the sun and convert it to chemical energy in the form of carbohydrates. This energy is then stored and is called glucose. This is important because not only are many other organisms, animals, or humans able to use/consume this energy.

Read More
703 Words | 3 Pages

In our experiments we tested the light intensity, absorption spectrum, and action spectrum of photosynthesis. In the light intensity experiment we tested the effects of different light intensities on the rate of photosynthesis. Our hypothesis for this experiment was that the various distances of light would affect the reduction of DPIP. Our null hypothesis

Read More
1099 Words | 5 Pages

The light plant too some carbon dioxide for photosynthesis. If I had to do this experiment over I would making sure Klevaniesha does not drop the dark container again. Appendix 1: Test Problems A. 78 mm CO2 41 drops of NaOH = 37 mm CO2 used for photosynthesis and respiration during 1 hour B. 1g = 3

Read More
592 Words | 3 Pages

The Chloroplast contains green pigment called chlorophyll which absorbs light energy from the sun. That is where the first stage occurs, which is known as, the light-dependent reaction. This stage takes place in stacked thylakoids, known as the granum. The light-dependent reaction is highly dependent on light energy. The products of this stage are light, water, and carbon dioxide.

Read More
1187 Words | 5 Pages

Photosynthesis is the process used by organisms to create their own food, by using water and carbon dioxide. Photosynthesis varies with solar radiation levels. Higher levels of photosynthesis are recorded during the day, than at night when there is little light and solar radiation. During photosynthesis, primary producers use energy from solar radiation to convert carbon dioxide into organic carbon. During this process water is spilt into oxygen gas.

Read More
871 Words | 4 Pages

“Photosynthesis is directly dependent on the supply of water, light, and carbon dioxide. Limitations in any of the factors on the left side of the equation (carbon dioxide, water, or light) can limit photosynthesis regardless of the availability of the other factors. Acid rain can be a limiting factor because the quality of the water might inhibit weaken the plants ability to perform

Read More

More about Discuss The Effects That Varying Light Intensities Have On Photosynthesis

Open Document