What two characteristics determine the distance moved by each of the pigment? Of the above two characteristics, which one decreases the distance moved? Which one increases the distance moved? What three characteristics determine the pigments solubility in the pigment and adsorption to the paper strip?
Thank you for your input. How do plants perform photosynthesis? What gases are used by plants during photosynthesis? What gases are produced by plants during photosynthesis? What is the role of chlorophyll in photosynthesis?
Which wavelengths of light are used by chlorophyll in plants during photosynthesis? Plants perform photosynthesis to create sugars and other organic compounds that they need to survive.
Chlorophyll is a pigment in the chloroplast of the plant cell that absorbs energy from light and uses it to create compounds needed in photosynthesis. Visible light is made up of different colors of different wavelengths and energy. Certain wavelengths of light are used by plants more than others.
Plants use carbon dioxide and produce oxygen gas during photosynthesis. They produce carbon dioxide during cellular respiration. In this experiment, the student will place aquatic plants under different colors of light in a solution of bromothymol blue.
Bromothymol blue is an acid-base indicator that turns yellow in acidic solutions and blue in alkaline solutions.
Carbon dioxide bubbled into water forms carbonic acid. Thus, the more photosynthetic activity, the less acidic and more blue the bromothymol blue solution becomes as the plant uses carbon dioxide during photosynthesis.
The less photosynthetic activity, the more acidic and yellow the bromothymol blue solution becomes as the plant produces carbon dioxide during cellular respiration.
Elodea, an aquatic plant available at many pet or gardening stores Bromothymol blue solution acid-base indicator available for purchase online 0. Secure the film with tape. Be sure that the film is heat resistant to avoid fire hazard. Leave one lamp without a colored film as a control.
Set up the lamps at least several feet apart and away from windows. Write a hypothesis to explain which color light will be best for photosynthesis and why. If you do not have enough solution, you may dilute it with a little water.
Just be sure to use distilled water and dilute the entire supply only slightly. Write the name of the colored film to be tested on each cup you can also use masking tape to label cups.
Cut equal-sized pieces of elodea for each test tube or glass about 3 inches in length. Make sure that each piece looks healthy and has plenty of green leaves. Place a piece of elodea in each test tube or glass. Record the initial color of the bromothymol blue solution.
Cover each test tube or glass with plastic wrap. Be sure to completely seal the vessel to keep gas from entering or leaving. For one of the control plants, cover the test tube or glass completely with aluminum foil to block out any light.
Place one uncovered plant and the covered plant under the light without any colored film. Place the remaining plants each under a colored lamp. The plants should all be 12 inches 30 cm away from their lamp.
Allow the plants to remain under the lamps until the uncovered control has turned dark blue about hours. Record the final color of the bromothymol blue solution for each color of light, as well as both controls.
Create a bar graph to illustrate your results. Compare your results to your hypothesis. Photosynthesis; Cellular respiration; Visible light spectrum; Chlorophyll; Carbon dioxide; Bromothymol blue References:Jan 05, · The kids put a test tube with elodea and bromothymol blue solution with carbon dioxide; a test tube with elodea and bromothymol blue solution with hydrochloric acid, and a test tube with only bromothymol blue solution with carbon dioxide into a dark room, and another set of .
There is a total of x 10 9 metric tons of carbon dioxide in the atmosphere and photosynthesis removes x 10 9 metric tons per year. So 15% of the total carbon dioxide that is in the atmosphere moves into photosynthetic organisms each year.
In this lab you will investigate the relationship between light absorption and carbon dioxide intake during the process of photosynthesis. Plants are organisms refered to as autotrophs because they have the ability to produce their own food. Carbon dioxide is needed for the photosynthesis reaction.
It is used to make the organic products of photosynthesis.
If the elodea is able to absorb more CO2 then the rate of photosynthesis will increase as the plant is able to make more of the organic compounds. In this lab, you will use phenol red as an indicator to show whether CO2 is being consumed or produced in a reaction within plants.
Lab is set up by placing elodea plants in test tubes with a solution of phenol red. A change in color occurs as carbon dioxide is consumed.
The process of photosynthesis uses light energy, carbon dioxide and water and produces glucose and oxygen. During the process of photosynthesis, light energy is converted into.