What was the purpose of the Elodea in the experiments?
This North American pondweed is widely recommended for demonstrating oxygen formation during photosynthesis. Elodea is cheap and easy to grow, but other pondweeds can also be used.
What happened to the solution in the Elodea test tube that was placed in the light?
When the sprig of Elodea was added to the solution and placed in the light, the Elodea continued to photosynthesize. As a result, carbon dioxide was removed from the solution.
What do the bubbles represent in the photosynthesis lab?
They might just as well have been bubbles of nitrogen or carbon dioxide, or some other gas from some other process that was occurring in the plants instead of photosynthesis. Nevertheless, since the plants were exposed to light, the bubbles were most likely made of oxygen.
What is the Elodea experiment?
In this experiment, the student will place aquatic plants under different colors of light in a solution of bromothymol blue. The less photosynthetic activity, the more acidic and yellow the bromothymol blue solution becomes as the plant produces carbon dioxide during cellular respiration.
Why is elodea suitable for investigating photosynthesis?
Like E. densa, its leaves are only 2 cells thick, making the microscopic observation of plant cell structure, chloroplasts, and cytoplasmic streaming simple. You can successfully perform all other common photosynthesis activities using this species of Elodea.
Do elodea plants carry out photosynthesis and cellular respiration at the same rate?
Yes, plants can do photosynthesis and cellular respiration at the same time. When sunlight is available for the plant, the plant can use that energy to perform photosynthesis.
Why did the tube with elodea change to a light blue?
We stuffed the elodea plant into one tube and put it in front of the light. carbon dioxide is absorbed from water by the plant in presence of light. The absorption of Co2 from water by the elodea in light is revealed through the change in color of the bromothymol blue from blue to green.
What do the bubbles on the leaf indicate?
This process is called plant or cellular respiration.] If you look closely at your leaves that were in the sunlight, you should see lots of very tiny bubbles. These are the escaping oxygen atoms which form bubbles since they are under water.
What gas does Elodea release?
Snails will produce only carbon dioxide, while the Elodea will produce carbon dioxide and oxygen gas.
How does elodea measure the rate of photosynthesis?
The rate of photosynthesis will be measured by counting the number of oxygen bubbles produced by the Elodea plants in each 2-minute trail. After completing a number of experiments, students and teachers will discuss their findings in relation to macro-level factors that affect ecosystem health and climate change.
Does Elodea do photosynthesis?
How does nahco3 affect photosynthesis?
If more baking soda is added to the sodium bicarbonate solution, then the leaf disks will rise to the surface of the solution quicker because of the subsequent increase in carbon dioxide levels which induces photosynthesis in the presence of light and leads to the accumulation of oxygen in the air spaces of the spongy …
