Questions about the experiment of Osmosis and Potatoes | Baamboozle - Baamboozle

Why did we add a control to the experiment?

To have a reference for comparison.

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Explain what happened to the potato in the HYPOTONIC solution after a few days.

The potato increased size. Water diffused by osmosis into the cells of the potato, causing them to swell. The cells of the potato are "turgid", or swollen.

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What was the objective of the experiment?

To study how osmosis affects living-cells. To study what happens to living-cells when placed in different solutions...

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lifesaver

Give 20 points!

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rocket

Go to first place!

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rocket

Go to first place!

Okay!

lifesaver

Give 5 points!

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thief

Give points!

star

Double points!

Okay!

rocket

Go to first place!

Okay!

thief

Give points!

banana

Go to last place!

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star

Double points!

Okay!

rocket

Go to first place!

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baam

Lose 15 points!

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Explain what happened to the potato in the HYPERTONIC solution after a few days.

The potato shrunk. The water diffused OUT of the cells of the potato by osmosis, causing them to shrink; the cells were "plasmolysed"

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In the experiment of Osmosis and Potatoes, which were the TREATMENTS?

Treatment 1: isotonic solution, Treatment 2: hypotonic solution, Treatment 3: hypertonic solution.

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In the experiment of Osmosis and Potatoes, which was the CONTROL?

The control was a slice of potato that wasn't placed in any solution.

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Explain what happened to the potato in the ISOTONIC solution after a few days.

The potato kept the same size as the CONTROL potato. (Flaccid cells). Water entered and left the potato at the same rate, there was no net movement of water.

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What's the difference between an ISOTONIC, HYPOTONIC and HYPERTONIC solution?

ISOTONIC: equal concentration of solute. HYPOTONIC: contains less concentration of solutes. HYPERTONIC: contains a higher concentration of solutes.

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Define Osmosis

Osmosis is the net movement of water from a high water potential to an area of low water potential through a semi-permeable (selectively / partially) membrane

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