Asked by: Mickie Luhsen
science biological sciences

Why did the elodea cells Plasmolyze?

Last Updated: 1st May, 2020

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Plasmolysis is the shrinking of the cytoplasm of a plant cell in response to diffusion of water out of the cell and into a high salt concentration solution. During plasmolysis, the cell membrane pulls away from the cell wall. This does not happen in low salt concentration because of the rigid cell wall.

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In this manner, what is the function of elodea cells?

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.

what caused the changes you observed between the two elodea slides? What caused the changes your observed between the elodea in aquarium water in a Elodea in a hypertonic solution slides? The hypertonic solution causes the water to leave the cell. This shrunk the cytoplasm and pulled away from the cell walls, a condition called plasmolysis.

Also, why do chloroplasts move in elodea cells?

Movement of Chloroplasts Chloroplasts do move in a cell. This current in motion occurs in the contained liquids of the cell. The actual cause of the motion isn't yet clear, but it does alter with heat and light and is changed by increases and decreases in fluid content.

What happens to elodea cells in distilled water?

This video shows the Elodea being "rehydrated" with distilled water. The chloroplasts are spread throughout the cell both before the salt solution, and after the distilled water is put onto the slide. Distilled water represents a hypotonic solution, yet the cells do not burst because of the cell wall.

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Alta Soumyabrata

Professional

What are elodea cells?

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.

Berena Uggi

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How does salt affect plant cells?

Salt Sucks, Cells Swell
The loss of water from this movement causes plant cells to shrink and wilt. This is why salt can kill plants; it leaches the water from the cells. The movement of water to leave an animal cell will also cause those cells to shrink and cause dehydration.

Herminsul Nieva

Professional

Where do chloroplasts lie?

Plant chloroplasts are commonly found in guard cells located in plant leaves. Guard cells surround tiny pores called stomata, opening and closing them to allow for gas exchange required for photosynthesis. Chloroplasts and other plastids develop from cells called proplastids.

Minh Llona

Explainer

What is chloroplast made of?

Chloroplasts. The chloroplast is made up of 3 types of membrane: A smooth outer membrane which is freely permeable to molecules.

Araiz Aenderl

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What color were the elodea cells?

What color were the Elodea cells? (They were colorless except for green bodies.) What were the green bodies inside the Elodea cells? (Chloroplasts.)

Philomina Aragoncillo

Explainer

How big is an elodea cell?

The plasma membrane is too thin to see at this magnification. In the printed image the students work with, the mitochondria aren't visible. What's the Size? A “typical” Elodea cell is approximately 0.05 millimeters long (50 micrometers long) and 0.025 millimeters wide (25 micrometers wide).

Anouk Lopez Manzanara

Pundit

What is Cyclosis in biology?

The term cyclosis refers to the streaming of cytoplasm inside a living cell. This motion enables materials to reach all parts of a cell including: oxygen and nutrients. There is a protein called actin, found in all eukaryotic cells which is part of the cytoskeleton.

Cheikh Pfefferler

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What happens to elodea cells in a hypotonic solution?

Thus, a hypotonic solution has more water than the cell and water has a tendency to move (diffuse) into the cell. 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.

Daya Quevedo

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What is the movement of chloroplasts called?

Chloroplast Movement in Plant Cells: Stirring the Pot & Avoiding the Sun. Cellular Turbulence. One of the fun things to observe using a light microscope is the movement of chloroplasts around the cell, especially in the plant Elodea. This movement is referred to as cyclosis or cytoplasmic streaming.

Abdelouahab At'Kov

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Do onion cells have chloroplasts?

Do onion cells have chloroplasts? Onion cells do not have chloroplasts becausethe onion is underground (where there is nolight). Without light, chloroplasts have no purpose. The green leaves and stem of an onion plantare normally exposed to daylight and so havechloroplasts, but the onion does not.

Donaciano Mordberg

Pundit

What is the direction of cytoplasmic streaming?

The barber pole chloroplast motion resulting from cytoplasmic streaming has one flow upward and another downward. The downward motion of the chloroplasts moves a bit faster than the upward flow producing a ratio of speeds of 1.1. This ratio is known as the polar ratio and depends on the force of gravity.

Andzelika Reche

Teacher

Are chloroplast moving or stationary?

The chloroplasts would be considered moving because they move around the cell wall. They have a cell wall, a nucleus, and are stationary.

Garret Batsanov

Teacher

How many chloroplasts are in a cell?

In the model algae Chlamydomonas reinhardtii there is only one prominent cup-shaped chloroplast per cell whereas in a typical photosynthetic leaf cell (mesophyll) from plants such as Arabidopsis and wheat there are about 100 chloroplasts per cell (BNID 107030, 107027, 107029).

Akim Enard

Teacher

Is cytoplasmic streaming active or passive?

Cytoplasmic streaming is an active process because the motion of the organelles attached to the actin filaments. Cytoplasmic streaming is also known as cytoplasmic streaming. The movement of fluid transports the nutrients, proteins and organelles in the cell. Cytoplasmic streaming occurs in large plants and animals.

Lucinda Pellegrini

Teacher

What would happen if you put elodea in salt water?

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. An animal cell does not have a cell wall. Therefore, if it were placed in a hypertonic solution it would lose water and shrivel.

Damarys Borghardt

Reviewer

Why is cytoplasmic streaming important?

Cytoplasmic streaming plays an important role in cell processes since it promotes solute exchange between the cytoplasm and organelles and enables lateral transport for extensive distances.

Benno Ycardui

Reviewer

Reyita Kurinji

Reviewer

Is salt solution hypertonic or hypotonic?

Pure water is definitely hypotonic. A saturated salt solution is definitely hypertonic. In between, depending on the cell and the salt, there will be an isotonic concentration, where everything is balanced. Those three points and all the concentrations between them define a spectrum.

Santos Bexiga

Reviewer

What is a hypertonic solution?

A hypertonic solution is a particular type of solution that has a greater concentration of solutes on the outside of a cell when compared with the inside of a cell.