In general, freshwater fish require salinity (salt) levels of 1.0 ppt or lower. You measure the salinity of a freshwater aquarium to be 3.0 ppt. Predict what will happen to the cells of the fish as a result of the salinity level in the aquarium.1) Is tank water hyper, hypo or isotonic to the fish cells? Explain why.2) Based on your answer to part 1, what will this type of solution ultimately do to the cells of the fish? ( which way will the water move into or out of the fish cells?)

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22-11-2021
Biology

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In general, freshwater fish require salinity (salt) levels of 1.0 ppt or lower. You measure the salinity of a freshwater aquarium to be 3.0 ppt. Predict what will happen to the cells of the fish as a result of the salinity level in the aquarium.1) Is tank water hyper, hypo or isotonic to the fish cells? Explain why.2) Based on your answer to part 1, what will this type of solution ultimately do to the cells of the fish? ( which way will the water move into or out of the fish cells?)

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Oseni Oseni · Answer 1 · 2021-11-26T12:51:56+01:00

The cells of the fish will lose water to the water in the aquarium tank, become flaccid, and may eventually die.

The tank water is said to be hypertonic. Hypertonic solutions have higher solute concentrations and lower water potentials than the saps of cells suspended into them.

Since freshwater fishes are only able to tolerate salinity levels of 1.0 ppt or lower, it means that any salinity above 1.0 ppt would be hypertonic to the cells of the fishes. Salinity level of 1.0 ppt would be isotonic while below 1.0 ppt would be hypotonic.

Hypertonic solutions have lower water potentials. Thus, water molecules will move from the cells of the fishes to the water in the aquarium. Continuous loss of water will result in the cells becoming flaccid and may eventually lead to their death if the situation persists.

More on hypertonic solutions can be found here: https://brainly.com/question/4237735