What happens when Elodea is placed in saltwater?
When the Elodea was placed in the salt solution, the vacuoles disappeared and the protoplasm came away from the cell wall making the organelles appear to be clumped in the middle of the cell. Such cells are said to be plasmolyzed.
Is Elodea a freshwater or saltwater plant what is your evidence?
Elodea is a freshwater plant commonly used for aquariums and it can be purchased at most pet stores. The leaves of Elodea are only two cells thick and are ideal for the microscopic study of the effects of osmotic solutions.
Can Elodea live in saltwater?
Answer and Explanation: Elodea and Paramecium cannot survive if they are in saltwater. This is because the salt content in the ocean will cause the Elodea and Paramecium to shrivel up and die as a result of osmosis. They have not evolved a mechanism to survive in high salinity.
Why the Elodea leaf cells look different in salt water than they do in freshwater?
The cells of the plant will shrink. Plasmolysis. Salt water has a higher concentration of ions (salt) than fresh water. Osmosis is the movement of water from an area of low salt to an area of high salt (or put another way, from an area of high water concentration to one of low water concentration).
What happens to a leaf in salt water?
If you water a plant with salt water, it will wilt, and will eventually die. This is due to the fact that the salt water is a hypertonic solution when compared to the plant cells, and water inside the plant cells will diffuse by osmosis out of the cells in order to reduce the concentration of the salt solution.
Why do Elodea cells shrink in salt water?
When the salt solution is added, the salt ions outside the cell membrane cause the water molecules to leave the cell through the cell membrane causing it to shrink into a blob in the centre of the cell wall. The movement of water molecules is called osmosis.
Does salt affect Elodea?
Moreover, Elodea species were more sensitive to salt in spring, during the growing season. It has been shown that one salt supply had a stronger impact on morphological traits than three salt supplies regularly provided during the time of the experiment.
When the Elodea leaf was put in distilled water what did you see under the microscope?
When the Elodea leaf was put in distilled water, what did you see under the microscope? The cell looked enlarged. When the Elodea leaf was exposed to 0.85% saline (physiological saline), what happened to the leaf? There was no effect on the leaf.
Is Elodea a plant or an animal?
The Elodea plant is indigenous to South America, and it has been recorded in Uruguay and Brazil. The aquarium trade has made it an invasive species in many regions of the world, and it has become established in North America, New Zealand, Northern Europe, Australia, and Japan.
Does Elodea respire in light or dark?
Then this would mean the Elodea plant is doing the respiration because the water is changing light to dark. d. If , hypothetically, test tube 3 changed from blue to yellow, what would this indicate about carbon dioxide?
What is the function of the Elodea leaf?
Habitat. Common waterweed grows in calm waters to more than 25 feet deep,which is why you’ll find it in lakes,ponds,marshes and slow-moving streams.
Why can you see chloroplasts in an Elodea leaf?
Definition. Elodea is a water plant native to Canada,often used in aquariums.