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Are Elodea leaves 1 2 4 or more cells thick How could you tell?
The leaves of Elodea are only two cells thick and are ideal for the microscopic study of the effects of osmotic solutions. Placing Elodea cells into 100% water, which is more hypotonic than freshwater, also causes water movement into of the cells resulting in the swelling of the cells.
What differences did you notice between the onion and Elodea cells Why are there differences if they are both plants?
What is the difference in size and shape between the onion and the Elodea cells? The onion cells are slimmer and smoother, but they are also connected (like bricks) like the Elodea cells. Elodea cells are more square and green and bigger.
What did you observe about the Elodea leaf structure?
This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell.
How many cell layers do Elodea leaves have?
3 layers
Most Elodea leaves have 3 layers of cells.
What structures of elodea cells are unique to plants?
The elodea cell will have a central vacuole in addition to chloroplasts. Plant cells also have a cell wall which is not a structure found in animal cells.
What plant organelle is visible in elodea cells but not visible in onion membrane cells?
The cellular structure that is found in Elodea leaf but not in onion bulb is chloroplast. The primary function of chloroplasts in plant cells is to assist in photosynthesis.
Why do we choose Elodea to do a wet mount?
Elodea Leaf Wet Mount Water will flow out of the Elodea cells by osmosis, shrinking the cell membrane away from the stiff cell wall (plasmolysis).
Do you think the Elodea cell in the hypotonic solution will look different from the Elodea cell in the hypertonic solution What do you predict they will look like?
What was the appearance of the Elodea cells in hypertonic solution? The cell membrane shriveled and pulled away from the cell wall. What was the appearance of the Elodea cells in hypotonic solution? The cell membrane was pressed against the cell wall, and the cell was almost bursting.
What is the shape of Elodea leaf cell?
This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape.
How do Elodea plants reproduce?
The plants reproduce readily by asexual fragmentation, and many invasive populations consist entirely of individuals of the same sex, having originated from a single, introduced, plant fragment. While the thin and wiry roots can anchor the plants into soft substrate, Elodea also grows well floating.
What does Elodea stand for?
Elodea. 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. Those and other species are also economically important as aquarium plants,…
Does Elodea stay green all winter?
Elodea is one of the few pond plants that can remain green all winter long. Dark-green leaves in dense whorls of two to three that become more crowded toward the top. Grows in a variety of pond habitats but prefers to grow in fine sediments at the bottom of cool, spring-fed ponds.