The indictor DCPIP can determine the rate of photosynthesis. DCPIP is able to capture the electrons that are transferred through the electron transport chain will cause the intensity of the indicator to decrease. The decrease of the indicator associates to an increased rate of photosynthetic activity (Miyazaki et al. 2012). It was hypothesised that the isolated chloroplasts from silverbeet leaves exposed to while light (Tube 3); the tube wrapped in red cellophane (Tube 6) would have a faster rate of photosynthesis, than the chloroplast kept in the dark (Tube 2), the boiled chloroplast suspension (Tube 4), the addition of DCMU (Tube 5) and the tube wrapped in green cellophane (Tube 7).
Light is absorbed by chlorophyll, and this causes electrons to jump to a higher electron level and create ATP. ATP and NADPH move to the stomata to take part of the Calvin cycle. During the Calvin cycle, CO2 molecules are turned into organic molecules. The photosynthesis equation is: 6CO2 + 6H2O + sunlight → C6H12O6 + 6 O2 In this experiment, we are going to use leaf disks to measure the net rate of photosynthesis under different light colors. The leaf disks float until their air bubbles are drawn out and replaced with the surrounding solution, causing their density to increase and the disk to sink.
When LiCl is burned the color of the light is an intense red. When BaCl2 is burned the energy is released in packages of light which its color is yellow-green. When BaCl2 is burned the energy is released in packages of light which its color is yellow-green. Data Table 2: Data processing | Metallic Element | Hypothesis | Observation | Sodium ChlorideNaCl | I though that the light of the energy release was going to be red. Because the number of electrons in this compound is no too high in comparison of other compounds.
The key point that allows photocopiers, powder paint and precipitators work, is the face that objects with the same charge repel each other, whereas objects with opposite charges are attracted to each other. Photocopiers work when an image plate is positively charged. An image of what's being copied is projected onto this image plate. Whiter bits of the image cause light to fall on the plate and allows the charge to leak through in these places. The charged parts of the plate attract the negatively charged black paper, which is transferred onto the positively charged paper.
Selecting variables Independent variable: • Distance of the lamp (cm) This variable needs to be changed to observe its affect on the rate of photosynthesis. • Rate of Sodium bicarbonate (gram) This variable needs to be changed to see how the different rates of Sodium bicarbonate affect the rate of photosynthesis. Dependent variable: • Oxygen bubbles produced per 5 minutes When the distance between the plant and the source of light is increase, then the amount of bubbles produced will decrease as photosynthesis works better with more light. Different rate of Sodium Bicarbonate will affect the rate of photosynthesis. As Sodium bicarbonate increased,
Discs made of spinach leaves were deoxygenated and placed in beakers with different wavelengths of light in order to measure which wavelength produced the most oxygen the fastest. This experiment was controlled by placing the beakers under various colors, including green although it is known that the color green is reflected by chlorophyll. The hypothesis for this experiment was that the white light would be the most effective and this was most definitely proven true by the data. It was found that white light was the most effective, followed by blue (450 nm) and then red, green and dark (700
The process of photosynthesis is when plants use the energy in sunlight to convert water and carbon dioxide into oxygen and high-energy carbohydrates. Photosynthesis occurs inside a cell organelle called the chloroplast. The chloroplast contains green pigments called chlorophyll, which capture the energy in sunlight. The equation for photosynthesis is as follows: Light 6CO2 + 6H2O à C6H12O6 + 6O2 (Moran 2006) The raw materials needed for photosynthesis are carbon dioxide from the air (taken in through the leaves) and water, usually from the soil (taken in through the roots). The two combine initially to produce simple sugars and oxygen.
The veins in a leaf transport nutrients and water where they are needed and chloroplasts are in a plant’s mesophyll cells, which is where photosynthesis takes place. 6CO2 + 6H2O (+ light energy) C6H12O6 + 6O2 is the formula for the photosynthesis chemical reaction (Carter, 2013). There are actually two steps to the photosynthesis process: in order to convert energy into chemical, a reaction to light takes place within the thylakoid membrane. Beta-carotene, Chlorophyll and other various pigments that are vital to the light reaction are systematized into specific groups within the thylakoid membrane;
During the explosion not only are gases produced quickly, but they are also hot, and they expand rapidly, according to Charles’ Law, which states that as the temperature of enclosed gas increases, the volume increases, if the pressure is consistent(Antonis, K. 2010). The chemical reaction the firework puts off is when [a]toms, as well as molecules, come together to form larger molecules, and larger molecules break up(Trefil, 2014). The chemical reaction also depends on the color of the firework. How do Chemists make the colors for Fireworks? When scientists make the different colors, each color has its own element.
Methane is a more active green house gas than CO2 but is less abundant in the atmosphere. Nitrous Oxide is a strong greenhouse gas produced by soil cultivation with the use of commercial and organic fertilizers and fossil fuel combustion. Finally Chlorofluorocarbons are synthetic compounds of industrial origin that are used for the destruction of the ozone