elodea pondweed experiment

1. Why is elodea used in photosynthesis experiment?
2. Why is pondweed used for photosynthesis experiments?
3. How does elodea measure the rate of photosynthesis?
4. Why is sodium bicarbonate used in the photosynthesis experiment with elodea?
5. What is the purpose of elodea?
6. Does elodea produce oxygen?
7. Why did the students use a water bath?
8. What are the 4 factors that affect photosynthesis?
9. What is the meaning of pondweed?
10. What temperature will result in the highest rate of photosynthesis?
11. How does light affect photosynthesis experiment?
12. What is the relationship between sodium bicarbonate and photosynthesis rate?
13. Why do you add co2 to the 3% sodium bicarbonate NaHCO3 solution?
14. What was the role of the sodium bicarbonate in this experiment?
15. What substances will be given off by the aquatic plant?
16. Why is it important to have elodea in an aquarium?
17. Is elodea a living thing?
18. Is elodea illegal?
19. Does elodea grow fast?
20. What can I use instead of elodea?
21. What does elodea need to survive?

Why is elodea used in photosynthesis experiment?

This North American pondweed is widely recommended for demonstrating oxygen formation during photosynthesis. Elodea is cheap and easy to grow, but we find that Cabomba is a much more reliable plant for this purpose.

Why is pondweed used for photosynthesis experiments?

Like other green plants, pond weed can make sugar from carbon dioxide and water. ... Red light is more easily used by the pond weed than most other colours. This process of making sugar and oxygen is called photosynthesis. Pond weed uses the carbon dioxide which is dissolved in the water it is in.

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.

Why is sodium bicarbonate used in the photosynthesis experiment with elodea?

The function of the sodium bicarbonate in this experiment, was providing carbon dioxide for photosynthesis to occur. ... Once photosynthesis occurs for this type of reaction, sugar is produced. The energy used for a light independent reaction is energy (ATP) from the light dependent reactions and the sugar energy.

What is the purpose of elodea?

Elodea provides shelter and food for many aquatic insects, crustaceans and fish. Elodea is often used in decorative purposes in the freshwater aquariums. Elodea quickly grows in waters rich in nitrogen and phosphorus. Rapid growth of elodea reduces oxygen content in the water and leads to fish kills.

Does elodea produce oxygen?

Brazilian elodea (Egeria densa; formerly Elodea densa) and Canadian waterweed are commonly used in schools as an experimental plant for demonstrating cellular structures, such as chloroplasts and nuclei, and oxygen production during photosynthesis.

Why did the students use a water bath?

Why did the students use a water bath? To keep the temperature constant.

What are the 4 factors that affect photosynthesis?

Photosynthesis is affected by light, temperature, water, and CO2. Stomata affect the process of transpiration and do not affect photosynthesis.

What is the meaning of pondweed?

: any of a genus (Potamogeton of the family Potamogetonaceae, the pondweed family) of aquatic plants with jointed usually rooting stems, floating or submerged leaves, and spikes of greenish flowers.

What temperature will result in the highest rate of photosynthesis?

At medium temperatures, between 50 and 68 degrees Fahrenheit, or 10 and 20 degrees Celsius, the photosynthetic enzymes work at their optimum levels, so photosynthesis rates gauge high. Depending on the particular plant in question, set the greenhouse thermostat to a temperature within this range for best results.

How does light affect photosynthesis experiment?

Light is essential for photosynthesis. Green plant cells that are placed in the dark will not photosynthesis. ... In this experiment, the light intensity is changed, by decreasing the light intensity. The rate of photosynthesis should decrease and therefore the amount of oxygen bubbles should decrease.

What is the relationship between sodium bicarbonate and photosynthesis rate?

The rate of photosynthesis steadily increased as the concentration of carbon dioxide present (sodium bicarbonate solution concentration) increased (directly proportional relationship).

Why do you add co2 to the 3% sodium bicarbonate NaHCO3 solution?

Why do you need to add carbon dioxide with the 3% sodium bicarbonate (NaHCO3) solution? ... Carbon dioxide can be used by plants to make glucose during photosynthesis.

What was the role of the sodium bicarbonate in this experiment?

The saturating solution should include a small amount of Sodium bicarbonate. Bicarbonate ion serves as the carbon source for photosynthesis. As photosynthesis proceeds oxygen is released into the interior of the leaf which changes the buoyancy--causing the disks to rise.

What substances will be given off by the aquatic plant?

Aquatic Plants and Photosynthesis

Plants, including aquatic plants, produce oxygen, and they also use oxygen.

Why is it important to have elodea in an aquarium?

Ecological Importance. Elodea provides habitat for many small aquatic animals, which fish and wildlife eat. Geese, ducks, and swans are particularly attracted to this plant. Elodea is an excellent oxygen producer and frequently used by fish to protect fry.

Is elodea a living thing?

The Elodea plant and the individual paramecium cell are both organisms because they can live on their own. ... Elodea cells are part of a bigger organism; paramecium are not. An organism is always free-living. It is not a part of a larger living organism.

Is elodea illegal?

It is illegal to sell this plant in Washington State. This aggressive aquatic plant has spread into many western Washington lakes including Lakes Washington, Union, Sammamish, Fenwick, and Doloff in King County.

Does elodea grow fast?

Elodea grows very quickly and can reach a mature state within a week.

What can I use instead of elodea?

We recommend these as best for cell studies. Can I substitute other plants for Elodea densa? For photosynthesis studies, almost any aquatic plant will work. These include Ludwigia (item #162141), Cabomba (item #162022), Myriophyllum (item #162161), Ceratophyllum (item #162041), and Sagittaria (item #162201).

What does elodea need to survive?

Food: There is no need to feed; Elodea derives most of its nourishment from the water through its leaves and through light. Water: You should keep your Elodea fully submerged in water, so water in its habitat should be replenished as it evaporates with de-chlorinated water.