Select the most appropriate answer from the dropdown menu for each question belo

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Select the most appropriate answer from the dropdown menu for each question below A sample of novel amide is made up as a 0.0159M solution. 10x, 100x, 1000x, 10000x and 100000x dilutions in sea water are made and tested against brine shrimp. 10 shrimp were placed in a test tube with 1.00 mL solution and 4.00 mL sea-water 10x 100x 1000x 10000x 100000x control 1 hr dead lethargic alive 10 10 48 hr dead lethargic 4 alive 4 4 10 What is the order of magnitude for the LC-50 for 1hr? Select ] What is the order of magnitude for the LC-50 for 48hr? [Select] What is the order of magnitude for the LE-50 for 1hr? [Select ] What is the order of magnitude for the LE-50 for 48hr? [Select ]

Explanation / Answer

The order of magnitude of LC-50 for 1 hr is concentration more than 10 X. In the present given all concentrations, the rate of mortality is less than 50%. A dose more than 10X i.e. 5X will be required to see mortality of 50%. The order of magnitude of LC-50 for 48h is 100x and 10x. At these concentrations, the rate of mortality is 50% or more than that. The order of magnitude of LE-50 for 1h is 100x because at this concentration the effect of toxicity is visible. The order of magnitude of LE-50 for 48h is 100000x because at this concentration the effect of toxicity is visible.

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