Answered: 1. In which environment (freshwater or…

1. In which environment (freshwater or marine), do organisms lose water? 2. In which environment (freshwater or marine), do organisms gain water?

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter48: Human Impacts On The Biosphere

Section: Chapter Questions

Problem 4CT

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Question

Fill out the table and answer questions 1,2,3 and 4

Salinity of
Osmolarity of
Which has
Which has
Will water flow into or
Environment
Organism
more salt?
more water?
out of organism?
0%o
15%o
15%o
15%o
35%
15%o
Questions
1. In which environment (freshwater or marine), do organisms lose water?
2. In which environment (freshwater or marine), do organisms gain water?
3. Would the environment with salinity of 0%o be hypotonic or hypertonic to an organism
with an osmolarity of 15%o?
ob ruGIL sp
4. Would the environment with salinity of 35%o be hypotonic or hypertonic to an organism
with an osmolarity of 15%o?

Expert Solution

Step 1

Salinity is the presence of salts in a solution. According to the concentration of salts, the solution can be classified into hypertonic, hypotonic, and isotonic solutions. Hypertonic solutions have higher solute concentration compared to the surrounding environment. Hypotonic solutions have a very low concentration of solutes compared to the surrounding environment. Isotonic solutions have a concentration same as that of the surrounding environment.

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